diff --git a/C/absmi.c b/C/absmi.c
index c9486f9b8..8d3349406 100644
--- a/C/absmi.c
+++ b/C/absmi.c
@@ -332,6 +332,13 @@ absmi(int inp)
 #endif /* OS_HANDLES_TR_OVERFLOW */
 
       BOp(Ystop, e);
+      if (Y > (CELL *) B) {
+	ASP = (CELL *) B;
+      }
+      else {
+	ASP = Y;
+      }
+      *--ASP = MkIntTerm(0);
       saveregs();
 #if PUSH_REGS
       restore_absmi_regs(old_regs);
@@ -343,6 +350,13 @@ absmi(int inp)
       ENDBOp();
 
       BOp(Nstop, e);
+      if (Y > (CELL *) B) {
+	ASP = (CELL *) B;
+      }
+      else {
+	ASP = Y;
+      }
+      *--ASP = MkIntTerm(0);
       saveregs();
 #if PUSH_REGS
       restore_absmi_regs(old_regs);
@@ -5730,6 +5744,8 @@ absmi(int inp)
       else {
 	ASP = (CELL *) (((char *) Y) + PREG->u.sla.s);
       }
+      /* for slots to work */
+      *--ASP = MkIntTerm(0);
 #endif /* FROZEN_STACKS */
 #ifdef LOW_LEVEL_TRACER
       if (do_low_level_trace)
@@ -7843,11 +7859,6 @@ absmi(int inp)
 #else
       pt0 = (choiceptr)(LCL0-IntOfTerm(d0));
 #endif
-      if (TopB != NULL && YOUNGER_CP(TopB,pt0)) {  
-	pt0 = TopB;
-	if (DelayedB == NULL || YOUNGER_CP(pt0,DelayedB))
-	  DelayedB = pt0;
-      }
       /* find where to cut to */
       if (SHOULD_CUT_UP_TO(B,pt0)) {
 	/* Wow, we're gonna cut!!! */
@@ -7896,11 +7907,6 @@ absmi(int inp)
 #else
       pt1 = (choiceptr)(LCL0-IntOfTerm(d0));
 #endif
-      if (TopB != NULL && YOUNGER_CP(TopB,pt1)) {  
-	pt1 = TopB;
-	if (DelayedB == NULL || YOUNGER_CP(pt1,DelayedB))
-	  DelayedB = pt1;
-      }
       if (SHOULD_CUT_UP_TO(B,pt1)) {
 	/* Wow, we're gonna cut!!! */
 #ifdef YAPOR
@@ -11660,11 +11666,6 @@ absmi(int inp)
 	    choiceptr pt0;
 
 	    pt0 = (choiceptr)(ENV[E_CB]);
-	    if (TopB != NULL && YOUNGER_CP(TopB,pt0)) {  
-	      pt0 = TopB;
-	      if (DelayedB == NULL || YOUNGER_CP(pt0,DelayedB))
-		DelayedB = pt0;
-	    }
 	    /* find where to cut to */
 	    if (SHOULD_CUT_UP_TO(B,pt0)) {
 #ifdef YAPOR
@@ -11801,11 +11802,6 @@ absmi(int inp)
 	    choiceptr pt0;
 
 	    pt0 = (choiceptr)(ENV[E_CB]);
-	    if (TopB != NULL && YOUNGER_CP(TopB,pt0)) {  
-	      pt0 = TopB;
-	      if (DelayedB == NULL || YOUNGER_CP(pt0,DelayedB))
-		DelayedB = pt0;
-	    }
 	    /* find where to cut to */
 	    if (SHOULD_CUT_UP_TO(B,pt0)) {
 #ifdef YAPOR
diff --git a/C/c_interface.c b/C/c_interface.c
index 705c41ad4..de6828fa4 100644
--- a/C/c_interface.c
+++ b/C/c_interface.c
@@ -59,6 +59,7 @@ X_API Atom    STD_PROTO(YapLookupAtom,(char *));
 X_API Atom    STD_PROTO(YapFullLookupAtom,(char *));
 X_API char   *STD_PROTO(YapAtomName,(Atom));
 X_API Term    STD_PROTO(YapMkPairTerm,(Term,Term));
+X_API Term    STD_PROTO(YapMkNewPairTerm,(void));
 X_API Term    STD_PROTO(YapHeadOfTerm,(Term));
 X_API Term    STD_PROTO(YapTailOfTerm,(Term));
 X_API Term    STD_PROTO(YapMkApplTerm,(Functor,unsigned int,Term *));
@@ -87,7 +88,9 @@ X_API Term    STD_PROTO(YapBufferToAtomList, (char *));
 X_API void    STD_PROTO(YapError,(char *));
 X_API int     STD_PROTO(YapRunGoal,(Term));
 X_API int     STD_PROTO(YapRestartGoal,(void));
+X_API int     STD_PROTO(YapGoalHasException,(Term *));
 X_API int     STD_PROTO(YapContinueGoal,(void));
+X_API void    STD_PROTO(YapPruneGoal,(void));
 X_API void    STD_PROTO(YapInitConsult,(int, char *));
 X_API void    STD_PROTO(YapEndConsult,(void));
 X_API Term    STD_PROTO(YapRead, (int (*)(void)));
@@ -102,7 +105,10 @@ X_API void    STD_PROTO(YapSetOutputMessage, (void));
 X_API int     STD_PROTO(YapStreamToFileNo, (Term));
 X_API void    STD_PROTO(YapCloseAllOpenStreams,(void));
 X_API Term    STD_PROTO(YapOpenStream,(void *, char *, Term, int));
-X_API Term   *STD_PROTO(YapNewSlots,(int));
+X_API long    STD_PROTO(YapNewSlots,(int));
+X_API Term    STD_PROTO(YapGetFromSlot,(long));
+X_API Term   *STD_PROTO(YapAddressFromSlot,(long));
+X_API void    STD_PROTO(YapPutInSlot,(long, Term));
 X_API void    STD_PROTO(YapRecoverSlots,(int));
 X_API void    STD_PROTO(YapThrow,(Term));
 X_API int     STD_PROTO(YapLookupModule,(Term));
@@ -111,6 +117,20 @@ X_API void    STD_PROTO(YapHalt,(int));
 X_API Term   *STD_PROTO(YapTopOfLocalStack,(void));
 X_API void   *STD_PROTO(YapPredicate,(Atom,Int,Int));
 X_API void    STD_PROTO(YapPredicateInfo,(void *,Atom *,Int *,Int *));
+X_API Int     STD_PROTO(YapCurrentModule,(void));
+
+static int (*do_getf)(void);
+
+static int do_yap_getc(int streamno) {
+  return(do_getf());
+}
+
+static void (*do_putcf)(int);
+
+static int do_yap_putc(int streamno,int ch) {
+  do_putcf(ch);
+  return(ch);
+}
 
 X_API Term
 YapA(int i)
@@ -270,6 +290,18 @@ YapMkPairTerm(Term t1, Term t2)
   return(t);
 }
 
+X_API Term
+YapMkNewPairTerm()
+{
+  Term t; 
+  BACKUP_H();
+
+  t = MkNewPairTerm();
+  
+  RECOVER_H();
+  return(t);
+}
+
 X_API Term 
 YapHeadOfTerm(Term t)
 {
@@ -398,10 +430,19 @@ X_API Int
 YapCallProlog(Term t)
 {
   Int out;
+  SMALLUNSGN mod = CurrentModule;
   BACKUP_MACHINE_REGS();
 
-  out = execute_goal(t, 0, CurrentModule);
-
+  while (!IsVarTerm(t) &&
+      IsApplTerm(t) &&
+      FunctorOfTerm(t) == FunctorModule) {
+    Term tmod = ArgOfTerm(1,t);
+    if (IsVarTerm(tmod)) return(FALSE);
+    if (!IsAtomTerm(tmod)) return(FALSE);
+    mod = LookupModule(tmod);
+    t = ArgOfTerm(2,t);
+  }
+  out = execute_goal(t, 0, mod);
   RECOVER_MACHINE_REGS();
   return(out);
 }
@@ -504,14 +545,23 @@ YapError(char *buf)
   Error(SYSTEM_ERROR,TermNil,buf);
 }
 
+static void myputc (int ch)
+{
+  putc(ch,stderr);
+}
+
+static Term told;
+static int counter=0;
+
 X_API int
 YapRunGoal(Term t)
 {
   int out;
   BACKUP_MACHINE_REGS();
 
-  InitYaamRegs();
+  do_putcf = myputc;
   out = RunTopGoal(t);
+  told = t;
 
   RECOVER_MACHINE_REGS();
   return(out);
@@ -524,7 +574,12 @@ YapRestartGoal(void)
   BACKUP_MACHINE_REGS();
 
   P = (yamop *)FAILCODE;
+  do_putcf = myputc;
   out = exec_absmi(TRUE);
+  if (out == FALSE) {
+    /* cleanup */
+    trust_last();
+  }
 
   RECOVER_MACHINE_REGS();
   return(out);
@@ -542,6 +597,31 @@ YapContinueGoal(void)
   return(out);
 }
 
+X_API void
+YapPruneGoal(void)
+{
+  BACKUP_B();
+
+  while (B->cp_ap != NOCODE) {
+    B = B->cp_b;
+  }
+
+  RECOVER_B();
+}
+
+X_API int
+YapGoalHasException(Term *t)
+{
+  int out = FALSE;
+  BACKUP_MACHINE_REGS();
+  if (EX) {
+    *t = EX;
+    out = TRUE;
+  }
+  RECOVER_MACHINE_REGS();
+  return(out);
+}
+
 X_API void
 YapInitConsult(int mode, char *filename)
 {
@@ -565,12 +645,6 @@ YapEndConsult(void)
   RECOVER_MACHINE_REGS();
 }
 
-static int (*do_getf)(void);
-
-static int do_yap_getc(int streamno) {
-  return(do_getf());
-}
-
 X_API Term
 YapRead(int (*mygetc)(void))
 {
@@ -595,13 +669,6 @@ YapRead(int (*mygetc)(void))
   return(t);
 }
 
-static void (*do_putcf)(int);
-
-static int do_yap_putc(int streamno,int ch) {
-  do_putcf(ch);
-  return(ch);
-}
-
 X_API void
 YapWrite(Term t, void (*myputc)(int), int flags)
 {
@@ -847,19 +914,43 @@ YapOpenStream(void *fh, char *name, Term nm, int flags)
   return retv;
 }
 
-X_API Term *
+X_API long
 YapNewSlots(int n)
 {
-  Term *slot;
-  ASP -= n;
-  slot = ASP;
-  return(slot);
+  Int old_slots = IntOfTerm(ASP[0]), oldn = n;
+  while (n > 0) {
+    RESET_VARIABLE(ASP);
+    ASP--;
+    n--;
+  }
+  ASP[0] = MkIntTerm(old_slots+oldn);
+  return((ASP+1)-LCL0);
 }
 
 X_API void
 YapRecoverSlots(int n)
 {
+  Int old_slots = IntOfTerm(ASP[0]);
   ASP += n;
+  ASP[0] = MkIntTerm(old_slots-n);
+}
+
+X_API Term
+YapGetFromSlot(long slot)
+{
+  return(Deref(LCL0[slot]));
+}
+
+X_API Term *
+YapAddressFromSlot(long slot)
+{
+  return(LCL0+slot);
+}
+
+X_API void
+YapPutInSlot(long slot, Term t)
+{
+  LCL0[slot] = t;
 }
 
 X_API void
@@ -918,3 +1009,9 @@ YapPredicateInfo(void *p, Atom* a, Int* arity, Int* m)
   }
   *m = pd->ModuleOfPred;
 } 
+
+X_API Int
+YapCurrentModule(void)
+{
+  return(CurrentModule);
+} 
diff --git a/C/dbase.c b/C/dbase.c
index a0d8bbfc9..4d9bc7b40 100644
--- a/C/dbase.c
+++ b/C/dbase.c
@@ -3287,8 +3287,8 @@ MyEraseClause(Clause *clau)
   }
   if ( P == clau->ClCode) {
     yamop   *nextto;
-    P = (yamop *)(RTRYCODE);
-    nextto = (yamop *)RTRYCODE;
+    P = RTRYCODE;
+    nextto = RTRYCODE;
     nextto->u.ld.d = clau->ClCode->u.ld.d;
     nextto->u.ld.s = clau->ClCode->u.ld.s;
     nextto->u.ld.p = clau->ClCode->u.ld.p;
@@ -3305,7 +3305,7 @@ MyEraseClause(Clause *clau)
   if (DBREF_IN_USE(ref))
     return;
   if ( P == clau->ClCode ) {
-    yamop *np = (yamop *)RTRYCODE;
+    yamop *np = RTRYCODE;
     /* make it the next alternative */
     np->u.ld.d = (CODEADDR)find_next_clause((DBRef)(NEXTOP(P,ld)->u.sla.l2));
     if (np->u.ld.d == NULL)
diff --git a/C/exec.c b/C/exec.c
index 16cbde510..82238e59f 100644
--- a/C/exec.c
+++ b/C/exec.c
@@ -229,8 +229,8 @@ do_execute(Term t, SMALLUNSGN mod)
     if (pen->PredFlags & MetaPredFlag) {
       if (f == FunctorModule) {
 	Term tmod = ArgOfTerm(1,t);
-	if (!IsVarTerm(tmod) && IsAtomTerm(tmod) &&
-	    mod == LookupModule(tmod)) {
+	if (!IsVarTerm(tmod) && IsAtomTerm(tmod)) {
+	  mod = LookupModule(tmod);
 	  t = ArgOfTerm(2,t);
 	  goto restart_exec;
 	}
@@ -337,8 +337,8 @@ p_execute_within(void)
       if (pen->PredFlags & MetaPredFlag) {
 	if (f == FunctorModule) {
 	  Term tmod = ArgOfTerm(1,t);
-	  if (!IsVarTerm(tmod) && IsAtomTerm(tmod) &&
-	      mod == LookupModule(tmod)) {
+	  if (!IsVarTerm(tmod) && IsAtomTerm(tmod)) {
+	    mod = LookupModule(tmod);
 	    t = ArgOfTerm(2,t);
 	    goto restart_exec;
 	  }
@@ -371,11 +371,6 @@ p_execute_within(void)
     if (a == AtomTrue || a == AtomOtherwise)
       return(TRUE);
     else if (a == AtomCut) {
-      if (TopB != NULL && YOUNGER_CP(TopB,cut_pt)) {  
-	cut_pt = TopB;
-	if (DelayedB == NULL || YOUNGER_CP(cut_pt,DelayedB))
-	  DelayedB = cut_pt;
-      }
       /* find where to cut to */
       if (SHOULD_CUT_UP_TO(B,cut_pt)) {
 #ifdef YAPOR
@@ -470,11 +465,6 @@ p_execute_within2(void)
       choiceptr pt0;
 
       pt0 = (choiceptr)(ENV[E_CB]);
-      if (TopB != NULL && YOUNGER_CP(TopB,pt0)) {  
-	pt0 = TopB;
-	if (DelayedB == NULL || YOUNGER_CP(pt0,DelayedB))
-	  DelayedB = pt0;
-      }
       /* find where to cut to */
       if (SHOULD_CUT_UP_TO(B,pt0)) {
 #ifdef YAPOR
@@ -796,8 +786,8 @@ p_at_execute(void)
       return(FALSE);
     if (f == FunctorModule) {
       Term tmod = ArgOfTerm(1,t);
-      if (!IsVarTerm(tmod) && IsAtomTerm(tmod) &&
-	  mod == LookupModule(tmod)) {
+      if (!IsVarTerm(tmod) && IsAtomTerm(tmod)) {
+	mod = LookupModule(tmod);
 	t = ArgOfTerm(2,t);
 	goto restart_exec;
       }
@@ -880,6 +870,7 @@ do_goal(CODEADDR CodeAdr, int arity, CELL *pt, int args_to_save, int top)
   /* create an initial pseudo environment so that when garbage
      collection is going up in the environment chain it doesn't get
      confused */
+  EX = 0L;
   YENV = ASP;
   YENV[E_CP] = (CELL)P;
   YENV[E_CB] = (CELL)B;
@@ -890,15 +881,8 @@ do_goal(CODEADDR CodeAdr, int arity, CELL *pt, int args_to_save, int top)
   ENV = YENV;
   ASP -= EnvSizeInCells;
   /* and now create a pseudo choicepoint for much the same reasons */
-  CP = (yamop *) YESCODE;
-  /* this is an hack to save the arguments */
-  {
-    CELL *pt1 = XREGS+1+args_to_save;
-
-    while (pt1 > XREGS+1)
-      *--ASP = *--pt1;
-  }
-  *--ASP = MkIntTerm(args_to_save+1);
+  /* CP = YESCODE; */
+  /* keep a place where you can inform you had an exception */
   { 
     int i;
     for (i = 0; i < arity; i++) {
@@ -915,7 +899,7 @@ do_goal(CODEADDR CodeAdr, int arity, CELL *pt, int args_to_save, int top)
   B->cp_h     = H;
   B->cp_tr    = TR;
   B->cp_cp    = CP;
-  B->cp_ap    = (yamop *) NOCODE;
+  B->cp_ap    = NOCODE;
   B->cp_env   = ENV;
   B->cp_b     = saved_b;
 #ifdef DEPTH_LIMIT
@@ -935,7 +919,6 @@ do_goal(CODEADDR CodeAdr, int arity, CELL *pt, int args_to_save, int top)
   YENV[E_CB] = Unsigned (B);
   P = (yamop *) CodeAdr;
   S = CellPtr (RepPredProp (PredPropByFunc (MkFunctor(AtomCall, 1),0)));	/* A1 mishaps */
-  TopB = B;
 
   return(exec_absmi(top));
 }
@@ -953,14 +936,8 @@ execute_goal(Term t, int nargs, SMALLUNSGN mod)
   /* preserve the current restart environment */
   /* visualc*/
   /* just keep the difference because of possible garbage collections */
-  Int MyOldTopB = LCL0-(CELL *)TopB;
-  Int MyOldDelayedB = LCL0-(CELL *)DelayedB;
-  choiceptr OldTopB, OldDelayedB;
 
 
-  DelayedB = NULL;
-  /* forget we have a DelayedB to do, this is not a problem for the embedded computation to solve */
-
   saved_p = P;
   saved_cp = CP;
   
@@ -1015,105 +992,32 @@ execute_goal(Term t, int nargs, SMALLUNSGN mod)
 #endif /* TABLING */
     /* find out where we have the old arguments */
     old_B = ((choiceptr)(ENV-(EnvSizeInCells+nargs+1)))-1;
-    {
-      int i;
-      for (i=1; i<= nargs; i++) {
-#if MIN_ARRAY == 0
-	XREGS[i] = old_B->cp_args[i];
-#else
-	XREGS[i] = old_B->cp_last.cp_args[i];
-#endif
-      }
-    }
     CP   = saved_cp;
     P    = saved_p;
     ASP  = ENV;
-    ENV  = (CELL *)(ENV[E_E]);
+    *--ASP = MkIntTerm(0);
 #ifdef DEPTH_LIMIT
     DEPTH= ENV[E_DEPTH];
 #endif
+    ENV  = (CELL *)(ENV[E_E]);
     /* we have failed, and usually we would backtrack to this B,
        trouble is, we may also have a delayed cut to do */
-    OldTopB = (choiceptr)(LCL0-MyOldTopB);
-    OldDelayedB = (choiceptr)(LCL0-MyOldDelayedB);
-    if (DelayedB != NULL) {
-      if (YOUNGER_CP(B,DelayedB)) {
-	/* we have a delayed cut to do */
-	if (YOUNGER_CP(OldTopB,DelayedB)) {
-	  /* and this delayed cut is to before the c-code that actually called us */
-	  B = OldTopB;
-#ifdef TABLING
-	  abolish_incomplete_subgoals(B);
-#endif /* TABLING */
-	  /* did we have a cut which was cutting more than our current cut? */
-	  if (OldDelayedB != NULL && YOUNGER_CP(DelayedB,OldDelayedB))
-	    DelayedB = OldDelayedB;
-	} else {
-	  /* just cut back to where we should cut */
-	  B = DelayedB;
-#ifdef TABLING
-	  abolish_incomplete_subgoals(B);
-#endif /* TABLING */
-	  DelayedB = OldDelayedB;
-	}
-      }
-    } else {
-      DelayedB = OldDelayedB;
-    }
-    TopB = OldTopB;
-    HB   = B->cp_h;
+    if (B != NULL)
+      HB   = B->cp_h;
     YENV = ENV;
     return(TRUE);
   } else if (out == 0) {
     ASP  = B->cp_env;
-    {
-      int i;
-      for (i=1; i<= nargs; i++) {
-#if MIN_ARRAY==0
-	XREGS[i] = B->cp_args[i];
-#else
-	XREGS[i] = B->cp_last.cp_args[i];
-#endif
-      }
-    }
     P    = saved_p;
     CP   = saved_cp;
     H    = B->cp_h;
 #ifdef DEPTH_LIMIT
     DEPTH= B->cp_depth;
 #endif
-    YENV = ENV  = (CELL *)((B->cp_env)[E_E]);
+    YENV= ASP = B->cp_env;
+    ENV  = (CELL *)((B->cp_env)[E_E]);
     B    = B->cp_b;
     SET_BB(B);
-    /* we have failed, and usually we would backtrack to this B,
-       trouble is, we may also have a delayed cut to do */
-    OldTopB = (choiceptr)(LCL0-MyOldTopB);
-    OldDelayedB = (choiceptr)(LCL0-MyOldDelayedB);
-    if (DelayedB != NULL) {
-      if (YOUNGER_CP(B,DelayedB)) {
-	/* we have a delayed cut to do */
-	if (YOUNGER_CP(OldTopB,DelayedB)) {
-	  /* and this delayed cut is to before the c-code that actually called us */
-	  B = OldTopB;
-#ifdef TABLING
-	  abolish_incomplete_subgoals(B);
-#endif /* TABLING */
-	  /* did we have a cut which was cutting more than our current cut? */
-	  if (OldDelayedB != NULL && YOUNGER_CP(DelayedB,OldDelayedB))
-	    DelayedB = OldDelayedB;
-	} else {
-	  /* just cut back to where we should cut */
-	  B = DelayedB;
-#ifdef TABLING
-	  abolish_incomplete_subgoals(B);
-#endif /* TABLING */
-	  DelayedB = OldDelayedB;
-	}
-      }
-    } else {
-      DelayedB = OldDelayedB;
-    }
-    TopB = OldTopB;
     HB = PROTECT_FROZEN_H(B);
     return(FALSE);
   } else {
@@ -1122,6 +1026,25 @@ execute_goal(Term t, int nargs, SMALLUNSGN mod)
   }
 }
 
+void
+trust_last(void)
+{
+  ASP  = B->cp_env;
+  P    = (yamop *)(B->cp_env[E_CP]);
+  CP   = B->cp_cp;
+  H    = B->cp_h;
+#ifdef DEPTH_LIMIT
+  DEPTH= B->cp_depth;
+#endif
+  YENV= ASP = B->cp_env;
+  ENV  = (CELL *)((B->cp_env)[E_E]);
+  B    = B->cp_b;
+  if (B) {
+    SET_BB(B);
+    HB = PROTECT_FROZEN_H(B);
+  }
+}
+
 int
 RunTopGoal(Term t)
 {
@@ -1130,7 +1053,9 @@ RunTopGoal(Term t)
   PredEntry *ppe;
   CELL *pt;
   UInt arity;
+  SMALLUNSGN mod = CurrentModule;
 
+ restart_runtopgoal:
   if (IsAtomTerm(t)) {
     Atom a = AtomOfTerm(t);
     pt = NULL;
@@ -1143,6 +1068,14 @@ RunTopGoal(Term t)
       Error(TYPE_ERROR_CALLABLE,t,"call/1");
       return(FALSE);
     }
+    if (f == FunctorModule) {
+      Term tmod = ArgOfTerm(1,t);
+      if (!IsVarTerm(tmod) && IsAtomTerm(tmod)) {
+	mod = LookupModule(tmod);
+	t = ArgOfTerm(2,t);
+	goto restart_runtopgoal;
+      }
+    }
     /* I cannot use the standard macro here because
        otherwise I would dereference the argument and
        might skip a svar */
@@ -1168,7 +1101,6 @@ RunTopGoal(Term t)
       return(FALSE);
     }
   CodeAdr = ppe->CodeOfPred;
-  READ_UNLOCK(ppe->PRWLock);
   if (TrailTop - HeapTop < 2048) {
     PrologMode = BootMode;
     Error(SYSTEM_ERROR,TermNil,
@@ -1238,11 +1170,6 @@ p_restore_regs2(void)
 #else
   pt0 = (choiceptr)(LCL0-IntOfTerm(d0));
 #endif
-  if (TopB != NULL && YOUNGER_CP(TopB,pt0)) {  
-    if (DelayedB == NULL || YOUNGER_CP(DelayedB,pt0))
-      DelayedB = pt0;
-    pt0 = TopB;
-  }
   /* find where to cut to */
   if (pt0 > B) {
     /* Wow, we're gonna cut!!! */
@@ -1287,16 +1214,18 @@ JumpToEnv(Term t) {
     while (B != NULL && B->cp_ap != pos) {
       /* we are already doing a catch */
       if (B->cp_ap == (yamop *)(PredHandleThrow->LastClause)) {
-	if (DelayedB == NULL || YOUNGER_CP(B,DelayedB))
-	  DelayedB = B;
 	P = (yamop *)FAILCODE;
 	if (first_func != NULL) {
 	  B = first_func;
 	}
 	return(FALSE);
       }
-      if (B->cp_ap == (yamop *) NOCODE && first_func == NULL)
-	first_func = B;
+      if (B->cp_ap == NOCODE) {
+	/* up to the C-code to deal with this! */
+	B->cp_h = H;
+	EX = t;
+	return(FALSE);
+      }
       B = B->cp_b;
     }
     /* uncaught throw */
@@ -1322,8 +1251,6 @@ JumpToEnv(Term t) {
   /* I could backtrack here, but it is easier to leave the unwinding
      to the emulator */
   B->cp_a3 = t;
-  if (DelayedB == NULL || YOUNGER_CP(B,DelayedB))
-    DelayedB = B;
   P = (yamop *)FAILCODE;
   if (first_func != NULL) {
     B = first_func;
diff --git a/C/grow.c b/C/grow.c
index eff381a93..fe55a50be 100644
--- a/C/grow.c
+++ b/C/grow.c
@@ -120,10 +120,6 @@ SetHeapRegs(void)
   H = PtoGloAdjust(H);
   HB = PtoGloAdjust(HB);
   B = ChoicePtrAdjust(B);
-  if (TopB != NULL)
-    TopB = ChoicePtrAdjust(TopB);
-  if (DelayedB != NULL)
-    DelayedB = ChoicePtrAdjust(DelayedB);
 #ifdef TABLING
   B_FZ = ChoicePtrAdjust(B_FZ);
   BB = ChoicePtrAdjust(BB);
@@ -168,10 +164,6 @@ SetStackRegs(void)
   ASP = PtoLocAdjust(ASP);
   LCL0 = PtoLocAdjust(LCL0);
   B = ChoicePtrAdjust(B);
-  if (TopB != NULL)
-    TopB = ChoicePtrAdjust(TopB);
-  if (DelayedB != NULL)
-    DelayedB = ChoicePtrAdjust(DelayedB);
 #ifdef TABLING
   B_FZ = ChoicePtrAdjust(B_FZ);
   BB = ChoicePtrAdjust(BB);
diff --git a/C/heapgc.c b/C/heapgc.c
index 7d6e4e9b6..bb8fe7eb4 100644
--- a/C/heapgc.c
+++ b/C/heapgc.c
@@ -1307,6 +1307,18 @@ mark_trail(tr_fr_ptr trail_ptr, tr_fr_ptr trail_base, CELL *gc_H, choiceptr gc_B
 #endif
 
 
+static void
+mark_slots(CELL *ptr)
+{
+  Int ns = IntOfTerm(*ptr);
+  ptr++;
+  while (ns > 0) {
+    mark_external_reference(ptr);
+    ptr++;
+    ns--;
+  }
+}
+
 static void 
 mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose)
 {
@@ -1452,9 +1464,9 @@ mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose)
       /* extended choice point */
       switch (opnum) {
       case _Nstop:
+	mark_slots(gc_B->cp_env);
 	if (gc_B->cp_b != NULL) {
-	  
-	  nargs = IntOfTerm(gc_B->cp_a1);
+	  nargs = 0;
 	  break;
 	} else {
 	  /* this is the last choice point, the work is done  ;-) */
@@ -1977,6 +1989,25 @@ sweep_environments(CELL_PTR gc_ENV, OPREG size, CELL *pvbmap)
   }
 }
 
+static void
+sweep_slots(CELL *ptr)
+{
+  Int ns = IntOfTerm(*ptr);
+  ptr++;
+  while (ns > 0) {
+    CELL cp_cell = *ptr;
+    if (MARKED(cp_cell)) {
+      UNMARK(ptr);
+      if (HEAP_PTR(cp_cell)) {
+	into_relocation_chain(ptr, GET_NEXT(cp_cell));
+      }
+    }
+    ptr++;
+    ns--;
+  }
+}
+
+
 /*
  * insert cells of each choicepoint & its chain of environments which point
  * to heap objects into relocation chains 
@@ -2021,21 +2052,8 @@ sweep_choicepoints(choiceptr gc_B)
       sweep_environments(gc_B->cp_env,
 			 EnvSizeInCells,
 			 NULL);
+      sweep_slots(gc_B->cp_env);
       if (gc_B->cp_b != NULL) {
-	register CELL_PTR saved_reg;
-	
-	/* for each saved register */
-	for (saved_reg = &gc_B->cp_a1;
-	     saved_reg < &gc_B->cp_a1 + IntOfTerm(gc_B->cp_a1);
-	     saved_reg++) {
-	  CELL cp_cell = *saved_reg;
-	  if (MARKED(cp_cell)) {
-	    UNMARK(saved_reg);
-	    if (HEAP_PTR(cp_cell)) {
-	      into_relocation_chain(saved_reg, GET_NEXT(cp_cell));
-	    }
-	  }
-	}
 	break;
       } else
 	return;
diff --git a/C/init.c b/C/init.c
index a39422ddb..0dd8faa32 100644
--- a/C/init.c
+++ b/C/init.c
@@ -809,16 +809,11 @@ InitCodes(void)
   heap_regs->env_for_yes_code.s = -Signed(RealEnvSize);
   heap_regs->env_for_yes_code.l = NULL;
   heap_regs->env_for_yes_code.l2 = NULL;
-  heap_regs->yescode = opcode(_Ystop);
+  heap_regs->yescode.opc = opcode(_Ystop);
   heap_regs->undef_op = opcode(_undef_p);
   heap_regs->index_op = opcode(_index_pred);
 
-#ifdef YAPOR
   heap_regs->nocode.opc = opcode(_Nstop);
-  INIT_YAMOP_LTT(&(heap_regs->nocode), 1);
-#else
-  heap_regs->nocode = opcode(_Nstop);
-#endif /* YAPOR */
 
   ((yamop *)(&heap_regs->rtrycode))->opc = opcode(_retry_and_mark);
   ((yamop *)(&heap_regs->rtrycode))->u.ld.s = 0;
@@ -1089,7 +1084,7 @@ InitYaamRegs(void)
    *must* be created since for the garbage collector to work */
   B = NULL;
   ENV = NULL;
-  P = CP = (yamop *)YESCODE;
+  P = CP = YESCODE;
 #ifdef DEPTH_LIMIT
   DEPTH = RESET_DEPTH();
 #endif
@@ -1103,7 +1098,9 @@ InitYaamRegs(void)
   TR = TR_FZ = TR_BASE;
 #endif /* FROZEN_STACKS */
   CreepFlag = CalculateStackGap();
-
+  EX = 0L;
+  /* for slots to work */
+  *--ASP = MkIntTerm(0);
 }
 
 
diff --git a/C/iopreds.c b/C/iopreds.c
index 0ed2d9435..43f99893c 100644
--- a/C/iopreds.c
+++ b/C/iopreds.c
@@ -2661,6 +2661,12 @@ static Int
 p_write (void)
 {				/* '$write'(+Flags,?Term) */
   plwrite (ARG2, Stream[c_output_stream].stream_putc, (int) IntOfTerm (Deref (ARG1)));
+  if (EX != 0L) {
+    Term ball = EX;
+    EX = 0L;
+    JumpToEnv(ball);
+    return(FALSE);
+  }
   return (TRUE);
 }
 
@@ -2675,6 +2681,12 @@ p_write2 (void)
   }
   plwrite (ARG3, Stream[c_output_stream].stream_putc, (int) IntOfTerm (Deref (ARG2)));
   c_output_stream = old_output_stream;
+  if (EX != 0L) {
+    Term ball = EX;
+    EX = 0L;
+    JumpToEnv(ball);
+    return(FALSE);
+  }
   return (TRUE);
 }
 
@@ -4239,6 +4251,13 @@ format(Term tail, Term args, int sno)
 	      arghd = HeadOfTerm (args);
 	      args = TailOfTerm (args);
 	      plwrite (arghd, format_putc, (int) 12);
+	      if (EX != 0L) {
+		Term ball = EX;
+		EX = 0L;
+		FreeAtomSpace(format_base);
+		JumpToEnv(ball);
+		return(FALSE);
+	      }
 	      break;
 	    case 'q':
 	      if (size_args) {
diff --git a/C/other.c b/C/other.c
index ca73e7231..22eb20d10 100644
--- a/C/other.c
+++ b/C/other.c
@@ -34,6 +34,18 @@ MkPairTerm(Term head, Term tail)
 }
 
 
+Term 
+MkNewPairTerm(void)
+{
+  register CELL  *p = H;
+
+  RESET_VARIABLE(H);
+  RESET_VARIABLE(H+1);
+  H+=2;
+  return (AbsPair(p));
+}
+
+
 Term 
 MkApplTerm(Functor f, unsigned int n, register Term *a)	
      /* build compound term with functor f and n
diff --git a/C/tracer.c b/C/tracer.c
index b5705dc1d..f25c4b52b 100644
--- a/C/tracer.c
+++ b/C/tracer.c
@@ -112,7 +112,7 @@ low_level_trace(yap_low_level_port port, PredEntry *pred, CELL *args)
   /*  extern int gc_calls; */
 
   vsc_count++;
-  if (vsc_count < 618000) return;
+  /* if (vsc_count < 618000) return; */
   /*  if (vsc_count == 656) {
     printf("Here I go\n");
   }
diff --git a/C/unify.c b/C/unify.c
index 862632f08..399dbcc73 100644
--- a/C/unify.c
+++ b/C/unify.c
@@ -1679,11 +1679,6 @@ p_cut_by( void)
 #else
   pt0 = (choiceptr)(LCL0-IntOfTerm(d0));
 #endif
-  if (TopB != NULL && YOUNGER_CP(TopB,pt0)) {  
-    if (DelayedB == NULL || YOUNGER_CP(DelayedB,pt0))
-      DelayedB = pt0;
-    pt0 = TopB;
-  }
   /* find where to cut to */
   if (pt0 > B) {
     /* Wow, we're gonna cut!!! */
diff --git a/C/write.c b/C/write.c
index d7894e84b..f21babd08 100644
--- a/C/write.c
+++ b/C/write.c
@@ -359,6 +359,8 @@ writeTerm(Term t, int p, int depth, int rinfixarg)
     putAtom(LookupAtom("..."));
     return;
   }
+  if (EX != 0)
+    return;
   t = Deref(t);
   if (IsVarTerm(t)) {
     write_var((CELL *)t);
@@ -386,9 +388,15 @@ writeTerm(Term t, int p, int depth, int rinfixarg)
 
     if (Use_portray) {
       Term targs[1];
+      Term old_EX = 0L;
+
       targs[0] = t;
       PutValue(AtomPortray, MkAtomTerm(AtomNil));
+      if (EX != 0L) old_EX = EX;
+      *--ASP = MkIntTerm(0);
       execute_goal(MkApplTerm(FunctorPortray, 1, targs), 0, 1);
+      if (old_EX != 0L) EX = old_EX;
+      Use_portray = TRUE;
       Use_portray = TRUE;
       if (GetValue(AtomPortray) == MkAtomTerm(AtomTrue))
 	return;
@@ -463,11 +471,15 @@ writeTerm(Term t, int p, int depth, int rinfixarg)
 #endif
     if (Use_portray) {
       Term targs[1];
+      Term old_EX = 0L;
       targs[0] = t;
       PutValue(AtomPortray, MkAtomTerm(AtomNil));
+      if (EX != 0L) old_EX = EX;
+      *--ASP = MkIntTerm(0);
       execute_goal(MkApplTerm(FunctorPortray, 1, targs),0, 1);
+      if (old_EX != 0L) EX = old_EX;
       Use_portray = TRUE;
-      if (GetValue(AtomPortray) == MkAtomTerm(AtomTrue))
+      if (GetValue(AtomPortray) == MkAtomTerm(AtomTrue) || EX != 0L)
 	return;
     }
     if (!Ignore_ops &&
diff --git a/H/Heap.h b/H/Heap.h
index 1abac5911..79ade0ae3 100644
--- a/H/Heap.h
+++ b/H/Heap.h
@@ -10,7 +10,7 @@
 * File:		Heap.h         						 *
 * mods:									 *
 * comments:	Heap Init Structure					 *
-* version:      $Id: Heap.h,v 1.24 2002-02-26 15:51:54 vsc Exp $	 *
+* version:      $Id: Heap.h,v 1.25 2002-05-14 18:24:33 vsc Exp $	 *
 *************************************************************************/
 
 /* information that can be stored in Code Space */
@@ -80,15 +80,9 @@ typedef struct various_codes {
     struct pred_entry *p;
     struct pred_entry *p0;
   } env_for_yes_code; /* sla */
-  OPCODE yescode;
-#ifdef YAPOR
+  yamop yescode;
   yamop nocode;
   yamop rtrycode;
-#else
-  OPCODE nocode;
-  /* yamop rtrycode; problem: we would have to publish yamop */
-  CELL rtrycode[4];
-#endif /* YAPOR */
   struct {
     OPREG arity;
     CODEADDR clause;
@@ -317,10 +311,10 @@ typedef struct various_codes {
 #define  FAILCODE                 ((CODEADDR)&(heap_regs->failcode       ))
 #define  FAILCODE                 ((CODEADDR)&(heap_regs->failcode       ))
 #define  TRUSTFAILCODE            ((CODEADDR)&(heap_regs->trustfailcode  ))
-#define  YESCODE                  ((CODEADDR)&(heap_regs->yescode        ))
-#define  NOCODE                   ((CODEADDR)&(heap_regs->nocode         ))
-#define  RTRYCODE                 ((CODEADDR)&(heap_regs->rtrycode       ))
-#define  DUMMYCODE                ((CODEADDR)&(heap_regs->dummycode      ))
+#define  YESCODE                  (&(heap_regs->yescode                  ))
+#define  NOCODE                   (&(heap_regs->nocode                   ))
+#define  RTRYCODE                 (&(heap_regs->rtrycode                 ))
+#define  DUMMYCODE                (&(heap_regs->dummycode                ))
 #define  CLAUSECODE               (&(heap_regs->clausecode               ))
 #define  INVISIBLECHAIN           heap_regs->invisiblechain
 #define  max_depth                (&(heap_regs->maxdepth   	         ))
diff --git a/H/Regs.h b/H/Regs.h
index 390675372..11e151cdb 100644
--- a/H/Regs.h
+++ b/H/Regs.h
@@ -10,7 +10,7 @@
 * File:		Regs.h							 *
 * mods:									 *
 * comments:	YAP abstract machine registers				 *
-* version:      $Id: Regs.h,v 1.14 2002-03-08 06:33:16 vsc Exp $	 *
+* version:      $Id: Regs.h,v 1.15 2002-05-14 18:24:33 vsc Exp $	 *
 *************************************************************************/
 
 
@@ -84,9 +84,8 @@ typedef struct
     ADDR   HeapPlus_;		/* 11 To avoid collisions with HeapTop        */
     tr_fr_ptr MyTR_;		/* 12                                         */
 /* visualc*/
-    choiceptr   TopB_;		/* 17 Top up to where we can cut to           */
-    choiceptr   DelayedB_;	/* 17 Cut Still To be Done                    */
     CELL   FlipFlop_;		/* 18                                         */
+    CELL   EX_;	    	        /* 18                                         */
 #ifdef COROUTINING
     Term  DelayedVars_;         /* maximum number of attributed variables     */
 #endif
@@ -628,6 +627,7 @@ EXTERN inline void restore_B(void) {
 #define TopB      REGS.TopB_
 #define DelayedB  REGS.DelayedB_
 #define FlipFlop  REGS.FlipFlop_
+#define EX        REGS.EX_
 #define DEPTH	  REGS.DEPTH_
 #if (defined(YAPOR) && defined(SBA)) || defined(TABLING)
 #define H_FZ          REGS.H_FZ_
diff --git a/H/Yapproto.h b/H/Yapproto.h
index 19e1a7804..6dbc41d6b 100644
--- a/H/Yapproto.h
+++ b/H/Yapproto.h
@@ -10,7 +10,7 @@
 * File:		Yap.proto						 *
 * mods:									 *
 * comments:	Function declarations for YAP				 *
-* version:      $Id: Yapproto.h,v 1.16 2002-05-06 15:33:04 vsc Exp $	 *
+* version:      $Id: Yapproto.h,v 1.17 2002-05-14 18:24:33 vsc Exp $	 *
 *************************************************************************/
 
 /* prototype file for Yap */
@@ -43,6 +43,7 @@ Functor	STD_PROTO(UnlockedMkFunctor,(AtomEntry *,unsigned int));
 Functor	STD_PROTO(MkFunctor,(Atom,unsigned int));
 void	STD_PROTO(MkFunctorWithAddress,(Atom,unsigned int,FunctorEntry *));
 Term	STD_PROTO(MkPairTerm,(Term,Term));
+Term	STD_PROTO(MkNewPairTerm,(void));
 void	STD_PROTO(PutValue,(Atom,Term));
 void	STD_PROTO(ReleaseAtom,(Atom));
 Term	STD_PROTO(StringToList,(char *));
@@ -155,6 +156,7 @@ Int	STD_PROTO(JumpToEnv,(Term));
 int	STD_PROTO(RunTopGoal,(Term));
 Int	STD_PROTO(execute_goal,(Term, int, SMALLUNSGN));
 int	STD_PROTO(exec_absmi,(int));
+void	STD_PROTO(trust_last,(void));
 
 
 /* grow.c */
diff --git a/configure b/configure
index 049efcc32..3f9c470e4 100755
--- a/configure
+++ b/configure
@@ -1,24 +1,22 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by Autoconf 2.52.
+# Generated by GNU Autoconf 2.53.
 #
-# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
 # Free Software Foundation, Inc.
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
 
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
 
-# Sed expression to map a string onto a valid variable name.
-as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
 
-# Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+## --------------------- ##
+## M4sh Initialization.  ##
+## --------------------- ##
 
 # Be Bourne compatible
 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
@@ -28,8 +26,165 @@ elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
 
+# NLS nuisances.
+# Support unset when possible.
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
+  as_unset=unset
+else
+  as_unset=false
+fi
+
+(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
+    { $as_unset LANG || test "${LANG+set}" != set; } ||
+      { LANG=C; export LANG; }
+(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
+    { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
+      { LC_ALL=C; export LC_ALL; }
+(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
+    { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
+      { LC_TIME=C; export LC_TIME; }
+(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
+    { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
+      { LC_CTYPE=C; export LC_CTYPE; }
+(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
+    { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
+      { LANGUAGE=C; export LANGUAGE; }
+(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
+    { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
+      { LC_COLLATE=C; export LC_COLLATE; }
+(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
+    { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
+      { LC_NUMERIC=C; export LC_NUMERIC; }
+(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
+    { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
+      { LC_MESSAGES=C; export LC_MESSAGES; }
+
+
 # Name of the executable.
-as_me=`echo "$0" |sed 's,.*[\\/],,'`
+as_me=`(basename "$0") 2>/dev/null ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)$' \| \
+	 .     : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
+  	  /^X\/\(\/\).*/{ s//\1/; q; }
+  	  s/.*/./; q'`
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conftest.sh
+  echo  "exit 0"   >>conftest.sh
+  chmod +x conftest.sh
+  if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conftest.sh
+fi
+
+
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
+  # Find who we are.  Look in the path if we contain no path at all
+  # relative or not.
+  case $0 in
+    *[\\/]* ) as_myself=$0 ;;
+    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+       ;;
+  esac
+  # We did not find ourselves, most probably we were run as `sh COMMAND'
+  # in which case we are not to be found in the path.
+  if test "x$as_myself" = x; then
+    as_myself=$0
+  fi
+  if test ! -f "$as_myself"; then
+    { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
+   { (exit 1); exit 1; }; }
+  fi
+  case $CONFIG_SHELL in
+  '')
+    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for as_base in sh bash ksh sh5; do
+	 case $as_dir in
+	 /*)
+	   if ("$as_dir/$as_base" -c '
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
+	     CONFIG_SHELL=$as_dir/$as_base
+	     export CONFIG_SHELL
+	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+	   fi;;
+	 esac
+       done
+done
+;;
+  esac
+
+  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+  # uniformly replaced by the line number.  The first 'sed' inserts a
+  # line-number line before each line; the second 'sed' does the real
+  # work.  The second script uses 'N' to pair each line-number line
+  # with the numbered line, and appends trailing '-' during
+  # substitution so that $LINENO is not a special case at line end.
+  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
+  sed '=' <$as_myself |
+    sed '
+      N
+      s,$,-,
+      : loop
+      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+      t loop
+      s,-$,,
+      s,^['$as_cr_digits']*\n,,
+    ' >$as_me.lineno &&
+  chmod +x $as_me.lineno ||
+    { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
+   { (exit 1); exit 1; }; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensible to this).
+  . ./$as_me.lineno
+  # Exit status is that of the last command.
+  exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+  *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T='	' ;;
+  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
 
 if expr a : '\(a\)' >/dev/null 2>&1; then
   as_expr=expr
@@ -57,22 +212,12 @@ rm -f conf$$ conf$$.exe conf$$.file
 
 as_executable_p="test -f"
 
-# Support unset when possible.
-if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
 
-# NLS nuisances.
-$as_unset LANG || test "${LANG+set}" != set || { LANG=C; export LANG; }
-$as_unset LC_ALL || test "${LC_ALL+set}" != set || { LC_ALL=C; export LC_ALL; }
-$as_unset LC_TIME || test "${LC_TIME+set}" != set || { LC_TIME=C; export LC_TIME; }
-$as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set || { LC_CTYPE=C; export LC_CTYPE; }
-$as_unset LANGUAGE || test "${LANGUAGE+set}" != set || { LANGUAGE=C; export LANGUAGE; }
-$as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set || { LC_COLLATE=C; export LC_COLLATE; }
-$as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set || { LC_NUMERIC=C; export LC_NUMERIC; }
-$as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set || { LC_MESSAGES=C; export LC_MESSAGES; }
 
 # IFS
 # We need space, tab and new line, in precisely that order.
@@ -81,7 +226,8 @@ as_nl='
 IFS=" 	$as_nl"
 
 # CDPATH.
-$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=:; export CDPATH; }
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
+
 
 # Name of the host.
 # hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
@@ -96,7 +242,8 @@ exec 6>&1
 ac_default_prefix=/usr/local
 cross_compiling=no
 subdirs=
-MFLAGS= MAKEFLAGS=
+MFLAGS=
+MAKEFLAGS=
 SHELL=${CONFIG_SHELL-/bin/sh}
 
 # Maximum number of lines to put in a shell here document.
@@ -104,6 +251,13 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # only ac_max_sed_lines should be used.
 : ${ac_max_here_lines=38}
 
+# Identity of this package.
+PACKAGE_NAME=
+PACKAGE_TARNAME=
+PACKAGE_VERSION=
+PACKAGE_STRING=
+PACKAGE_BUGREPORT=
+
 ac_unique_file="console/yap.c"
 # Factoring default headers for most tests.
 ac_includes_default="\
@@ -142,6 +296,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
+
 # Initialize some variables set by options.
 ac_init_help=
 ac_init_version=false
@@ -180,13 +335,6 @@ oldincludedir='/usr/include'
 infodir='${prefix}/info'
 mandir='${prefix}/man'
 
-# Identity of this package.
-PACKAGE_NAME=
-PACKAGE_TARNAME=
-PACKAGE_VERSION=
-PACKAGE_STRING=
-PACKAGE_BUGREPORT=
-
 ac_prev=
 for ac_option
 do
@@ -319,7 +467,7 @@ do
     with_fp=no ;;
 
   -no-create | --no-create | --no-creat | --no-crea | --no-cre \
-  | --no-cr | --no-c)
+  | --no-cr | --no-c | -n)
     no_create=yes ;;
 
   -no-recursion | --no-recursion | --no-recursio | --no-recursi \
@@ -498,7 +646,7 @@ do
   eval ac_val=$`echo $ac_var`
   case $ac_val in
     [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
-    *)  { echo "$as_me: error: expected an absolute path for --$ac_var: $ac_val" >&2
+    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
    { (exit 1); exit 1; }; };;
   esac
 done
@@ -510,18 +658,19 @@ do
   eval ac_val=$`echo $ac_var`
   case $ac_val in
     [\\/$]* | ?:[\\/]* ) ;;
-    *)  { echo "$as_me: error: expected an absolute path for --$ac_var: $ac_val" >&2
+    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
    { (exit 1); exit 1; }; };;
   esac
 done
 
 # There might be people who depend on the old broken behavior: `$host'
 # used to hold the argument of --host etc.
+# FIXME: To remove some day.
 build=$build_alias
 host=$host_alias
 target=$target_alias
 
-# FIXME: should be removed in autoconf 3.0.
+# FIXME: To remove some day.
 if test "x$host_alias" != x; then
   if test "x$build_alias" = x; then
     cross_compiling=maybe
@@ -537,13 +686,23 @@ test -n "$host_alias" && ac_tool_prefix=$host_alias-
 
 test "$silent" = yes && exec 6>/dev/null
 
+
 # Find the source files, if location was not specified.
 if test -z "$srcdir"; then
   ac_srcdir_defaulted=yes
   # Try the directory containing this script, then its parent.
-  ac_prog=$0
-  ac_confdir=`echo "$ac_prog" | sed 's%[\\/][^\\/][^\\/]*$%%'`
-  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
+  ac_confdir=`(dirname "$0") 2>/dev/null ||
+$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$0" : 'X\(//\)[^/]' \| \
+         X"$0" : 'X\(//\)$' \| \
+         X"$0" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$0" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+  	  /^X\(\/\/\)$/{ s//\1/; q; }
+  	  /^X\(\/\).*/{ s//\1/; q; }
+  	  s/.*/./; q'`
   srcdir=$ac_confdir
   if test ! -r $srcdir/$ac_unique_file; then
     srcdir=..
@@ -553,10 +712,10 @@ else
 fi
 if test ! -r $srcdir/$ac_unique_file; then
   if test "$ac_srcdir_defaulted" = yes; then
-    { echo "$as_me: error: cannot find sources in $ac_confdir or .." >&2
+    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
    { (exit 1); exit 1; }; }
   else
-    { echo "$as_me: error: cannot find sources in $srcdir" >&2
+    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
    { (exit 1); exit 1; }; }
   fi
 fi
@@ -600,7 +759,7 @@ ac_cv_env_CPP_value=$CPP
 if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
-  cat <<EOF
+  cat <<_ACEOF
 \`configure' configures this package to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
@@ -621,9 +780,9 @@ Configuration:
   -n, --no-create         do not create output files
       --srcdir=DIR        find the sources in DIR [configure dir or \`..']
 
-EOF
+_ACEOF
 
-  cat <<EOF
+  cat <<_ACEOF
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
                           [$ac_default_prefix]
@@ -650,20 +809,20 @@ Fine tuning of the installation directories:
   --oldincludedir=DIR    C header files for non-gcc [/usr/include]
   --infodir=DIR          info documentation [PREFIX/info]
   --mandir=DIR           man documentation [PREFIX/man]
-EOF
+_ACEOF
 
-  cat <<\EOF
+  cat <<\_ACEOF
 
 System types:
   --build=BUILD     configure for building on BUILD [guessed]
-  --host=HOST       build programs to run on HOST [BUILD]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
   --target=TARGET   configure for building compilers for TARGET [HOST]
-EOF
+_ACEOF
 fi
 
 if test -n "$ac_init_help"; then
 
-  cat <<\EOF
+  cat <<\_ACEOF
 
 Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
@@ -678,6 +837,7 @@ Optional Features:
  --enable-max-performance   try using the best flags for specific architecture
  --enable-debug-yap         enable C-debugging for YAP
  --enable-cygwin            use cygwin library in WIN32
+ --enable-dynamic-loading    compile Yap as a DLL
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -702,40 +862,60 @@ Some influential environment variables:
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
-EOF
+_ACEOF
 fi
 
 if test "$ac_init_help" = "recursive"; then
   # If there are subdirs, report their specific --help.
   ac_popdir=`pwd`
-  for ac_subdir in : $ac_subdirs_all; do test "x$ac_subdir" = x: && continue
-    cd $ac_subdir
-    # A "../" for each directory in /$ac_subdir.
-    ac_dots=`echo $ac_subdir |
-             sed 's,^\./,,;s,[^/]$,&/,;s,[^/]*/,../,g'`
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d $ac_dir || continue
+    ac_builddir=.
 
-    case $srcdir in
-    .) # No --srcdir option.  We are building in place.
-      ac_sub_srcdir=$srcdir ;;
-    [\\/]* | ?:[\\/]* ) # Absolute path.
-      ac_sub_srcdir=$srcdir/$ac_subdir ;;
-    *) # Relative path.
-      ac_sub_srcdir=$ac_dots$srcdir/$ac_subdir ;;
-    esac
+if test "$ac_dir" != .; then
+  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+  # A "../" for each directory in $ac_dir_suffix.
+  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+  ac_dir_suffix= ac_top_builddir=
+fi
 
+case $srcdir in
+  .)  # No --srcdir option.  We are building in place.
+    ac_srcdir=.
+    if test -z "$ac_top_builddir"; then
+       ac_top_srcdir=.
+    else
+       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+    fi ;;
+  [\\/]* | ?:[\\/]* )  # Absolute path.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir ;;
+  *) # Relative path.
+    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
+ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
+    cd $ac_dir
     # Check for guested configure; otherwise get Cygnus style configure.
-    if test -f $ac_sub_srcdir/configure.gnu; then
+    if test -f $ac_srcdir/configure.gnu; then
       echo
-      $SHELL $ac_sub_srcdir/configure.gnu  --help=recursive
-    elif test -f $ac_sub_srcdir/configure; then
+      $SHELL $ac_srcdir/configure.gnu  --help=recursive
+    elif test -f $ac_srcdir/configure; then
       echo
-      $SHELL $ac_sub_srcdir/configure  --help=recursive
-    elif test -f $ac_sub_srcdir/configure.ac ||
-           test -f $ac_sub_srcdir/configure.in; then
+      $SHELL $ac_srcdir/configure  --help=recursive
+    elif test -f $ac_srcdir/configure.ac ||
+           test -f $ac_srcdir/configure.in; then
       echo
       $ac_configure --help
     else
-      echo "$as_me: WARNING: no configuration information is in $ac_subdir" >&2
+      echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi
     cd $ac_popdir
   done
@@ -743,31 +923,31 @@ fi
 
 test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
-  cat <<\EOF
+  cat <<\_ACEOF
 
-Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
-EOF
+_ACEOF
   exit 0
 fi
 exec 5>config.log
-cat >&5 <<EOF
+cat >&5 <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.52.  Invocation command line was
+generated by GNU Autoconf 2.53.  Invocation command line was
 
   $ $0 $@
 
-EOF
+_ACEOF
 {
 cat <<_ASUNAME
-## ---------- ##
-## Platform.  ##
-## ---------- ##
+## --------- ##
+## Platform. ##
+## --------- ##
 
 hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
 uname -m = `(uname -m) 2>/dev/null || echo unknown`
@@ -786,17 +966,27 @@ hostinfo               = `(hostinfo) 2>/dev/null               || echo unknown`
 /usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
 /bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
 
-PATH = $PATH
-
 _ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  echo "PATH: $as_dir"
+done
+
 } >&5
 
-cat >&5 <<EOF
-## ------------ ##
-## Core tests.  ##
-## ------------ ##
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
 
-EOF
 
 # Keep a trace of the command line.
 # Strip out --no-create and --no-recursion so they do not pile up.
@@ -807,15 +997,17 @@ for ac_arg
 do
   case $ac_arg in
   -no-create | --no-create | --no-creat | --no-crea | --no-cre \
-  | --no-cr | --no-c) ;;
+  | --no-cr | --no-c | -n ) continue ;;
   -no-recursion | --no-recursion | --no-recursio | --no-recursi \
-  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    continue ;;
   *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
-    ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
-    ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
-    ac_sep=" " ;;
-  *) ac_configure_args="$ac_configure_args$ac_sep$ac_arg"
-     ac_sep=" " ;;
+    ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  case " $ac_configure_args " in
+    *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+    *) ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
+       ac_sep=" " ;;
   esac
   # Get rid of the leading space.
 done
@@ -823,14 +1015,19 @@ done
 # When interrupted or exit'd, cleanup temporary files, and complete
 # config.log.  We remove comments because anyway the quotes in there
 # would cause problems or look ugly.
+# WARNING: Be sure not to use single quotes in there, as some shells,
+# such as our DU 5.0 friend, will then `close' the trap.
 trap 'exit_status=$?
   # Save into config.log some information that might help in debugging.
-  echo >&5
-  echo "## ----------------- ##" >&5
-  echo "## Cache variables.  ##" >&5
-  echo "## ----------------- ##" >&5
-  echo >&5
-  # The following way of writing the cache mishandles newlines in values,
+  {
+    echo
+    cat <<\_ASBOX
+## ---------------- ##
+## Cache variables. ##
+## ---------------- ##
+_ASBOX
+    echo
+    # The following way of writing the cache mishandles newlines in values,
 {
   (set) 2>&1 |
     case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
@@ -844,21 +1041,24 @@ trap 'exit_status=$?
         "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
       ;;
     esac;
-} >&5
-  sed "/^$/d" confdefs.h >conftest.log
-  if test -s conftest.log; then
-    echo >&5
-    echo "## ------------ ##" >&5
-    echo "## confdefs.h.  ##" >&5
-    echo "## ------------ ##" >&5
-    echo >&5
-    cat conftest.log >&5
-  fi
-  (echo; echo) >&5
-  test "$ac_signal" != 0 &&
-    echo "$as_me: caught signal $ac_signal" >&5
-  echo "$as_me: exit $exit_status" >&5
-  rm -rf conftest* confdefs* core core.* *.core conf$$* $ac_clean_files &&
+}
+    echo
+    if test -s confdefs.h; then
+      cat <<\_ASBOX
+## ----------- ##
+## confdefs.h. ##
+## ----------- ##
+_ASBOX
+      echo
+      sed "/^$/d" confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      echo "$as_me: caught signal $ac_signal"
+    echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core core.* *.core &&
+  rm -rf conftest* confdefs* conf$$* $ac_clean_files &&
     exit $exit_status
      ' 0
 for ac_signal in 1 2 13 15; do
@@ -871,6 +1071,33 @@ rm -rf conftest* confdefs.h
 # AIX cpp loses on an empty file, so make sure it contains at least a newline.
 echo >confdefs.h
 
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+
 # Let the site file select an alternate cache file if it wants to.
 # Prefer explicitly selected file to automatically selected ones.
 if test -z "$CONFIG_SITE"; then
@@ -882,9 +1109,9 @@ if test -z "$CONFIG_SITE"; then
 fi
 for ac_site_file in $CONFIG_SITE; do
   if test -r "$ac_site_file"; then
-    { echo "$as_me:885: loading site script $ac_site_file" >&5
+    { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
 echo "$as_me: loading site script $ac_site_file" >&6;}
-    cat "$ac_site_file" >&5
+    sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file"
   fi
 done
@@ -893,7 +1120,7 @@ if test -r "$cache_file"; then
   # Some versions of bash will fail to source /dev/null (special
   # files actually), so we avoid doing that.
   if test -f "$cache_file"; then
-    { echo "$as_me:896: loading cache $cache_file" >&5
+    { echo "$as_me:$LINENO: loading cache $cache_file" >&5
 echo "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . $cache_file;;
@@ -901,7 +1128,7 @@ echo "$as_me: loading cache $cache_file" >&6;}
     esac
   fi
 else
-  { echo "$as_me:904: creating cache $cache_file" >&5
+  { echo "$as_me:$LINENO: creating cache $cache_file" >&5
 echo "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
@@ -917,42 +1144,42 @@ for ac_var in `(set) 2>&1 |
   eval ac_new_val="\$ac_env_${ac_var}_value"
   case $ac_old_set,$ac_new_set in
     set,)
-      { echo "$as_me:920: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+      { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
 echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { echo "$as_me:924: error: \`$ac_var' was not set in the previous run" >&5
+      { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
 echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
-        { echo "$as_me:930: error: \`$ac_var' has changed since the previous run:" >&5
+        { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
 echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
-        { echo "$as_me:932:   former value:  $ac_old_val" >&5
+        { echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
 echo "$as_me:   former value:  $ac_old_val" >&2;}
-        { echo "$as_me:934:   current value: $ac_new_val" >&5
+        { echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
 echo "$as_me:   current value: $ac_new_val" >&2;}
         ac_cache_corrupted=:
       fi;;
   esac
-  # Pass precious variables to config.status.  It doesn't matter if
-  # we pass some twice (in addition to the command line arguments).
+  # Pass precious variables to config.status.
   if test "$ac_new_set" = set; then
     case $ac_new_val in
     *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
-      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"`
-      ac_configure_args="$ac_configure_args '$ac_arg'"
-      ;;
-    *) ac_configure_args="$ac_configure_args $ac_var=$ac_new_val"
-       ;;
+      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
     esac
   fi
 done
 if $ac_cache_corrupted; then
-  { echo "$as_me:953: error: changes in the environment can compromise the build" >&5
+  { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
 echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  { { echo "$as_me:955: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
+  { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
 echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
    { (exit 1); exit 1; }; }
 fi
@@ -963,29 +1190,26 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
-  *c*,-n*) ECHO_N= ECHO_C='
-' ECHO_T='	' ;;
-  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
-  *)      ECHO_N= ECHO_C='\c' ECHO_T= ;;
-esac
-echo "#! $SHELL" >conftest.sh
-echo  "exit 0"   >>conftest.sh
-chmod +x conftest.sh
-if { (echo "$as_me:975: PATH=\".;.\"; conftest.sh") >&5
-  (PATH=".;."; conftest.sh) 2>&5
-  ac_status=$?
-  echo "$as_me:978: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
-  ac_path_separator=';'
-else
-  ac_path_separator=:
-fi
-PATH_SEPARATOR="$ac_path_separator"
-rm -f conftest.sh
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 
 ac_config_headers="$ac_config_headers config.h"
 
+
 mycflags="$CFLAGS"
 
 ac_ext=c
@@ -996,7 +1220,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-echo "$as_me:999: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1004,25 +1228,28 @@ else
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_CC="${ac_tool_prefix}gcc"
-echo "$as_me:1014: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$as_me:1022: result: $CC" >&5
+  echo "$as_me:$LINENO: result: $CC" >&5
 echo "${ECHO_T}$CC" >&6
 else
-  echo "$as_me:1025: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1031,7 +1258,7 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-echo "$as_me:1034: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1039,25 +1266,28 @@ else
   if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_ac_ct_CC="gcc"
-echo "$as_me:1049: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  echo "$as_me:1057: result: $ac_ct_CC" >&5
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
 echo "${ECHO_T}$ac_ct_CC" >&6
 else
-  echo "$as_me:1060: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1070,7 +1300,7 @@ if test -z "$CC"; then
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-echo "$as_me:1073: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1078,25 +1308,28 @@ else
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_CC="${ac_tool_prefix}cc"
-echo "$as_me:1088: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$as_me:1096: result: $CC" >&5
+  echo "$as_me:$LINENO: result: $CC" >&5
 echo "${ECHO_T}$CC" >&6
 else
-  echo "$as_me:1099: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1105,7 +1338,7 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-echo "$as_me:1108: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1113,25 +1346,28 @@ else
   if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_ac_ct_CC="cc"
-echo "$as_me:1123: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  echo "$as_me:1131: result: $ac_ct_CC" >&5
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
 echo "${ECHO_T}$ac_ct_CC" >&6
 else
-  echo "$as_me:1134: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1144,7 +1380,7 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-echo "$as_me:1147: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1153,19 +1389,22 @@ else
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
-  ac_prog_rejected=yes
-  continue
-fi
-ac_cv_prog_CC="cc"
-echo "$as_me:1167: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 if test $ac_prog_rejected = yes; then
@@ -1177,7 +1416,7 @@ if test $ac_prog_rejected = yes; then
     # However, it has the same basename, so the bogon will be chosen
     # first if we set CC to just the basename; use the full file name.
     shift
-    set dummy "$ac_dir/$ac_word" ${1+"$@"}
+    set dummy "$as_dir/$ac_word" ${1+"$@"}
     shift
     ac_cv_prog_CC="$@"
   fi
@@ -1186,10 +1425,10 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$as_me:1189: result: $CC" >&5
+  echo "$as_me:$LINENO: result: $CC" >&5
 echo "${ECHO_T}$CC" >&6
 else
-  echo "$as_me:1192: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1200,7 +1439,7 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-echo "$as_me:1203: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1208,25 +1447,28 @@ else
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-echo "$as_me:1218: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$as_me:1226: result: $CC" >&5
+  echo "$as_me:$LINENO: result: $CC" >&5
 echo "${ECHO_T}$CC" >&6
 else
-  echo "$as_me:1229: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1239,7 +1481,7 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "$as_me:1242: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1247,25 +1489,28 @@ else
   if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_ac_ct_CC="$ac_prog"
-echo "$as_me:1257: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  echo "$as_me:1265: result: $ac_ct_CC" >&5
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
 echo "${ECHO_T}$ac_ct_CC" >&6
 else
-  echo "$as_me:1268: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1277,34 +1522,41 @@ fi
 
 fi
 
-test -z "$CC" && { { echo "$as_me:1280: error: no acceptable cc found in \$PATH" >&5
-echo "$as_me: error: no acceptable cc found in \$PATH" >&2;}
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH" >&5
+echo "$as_me: error: no acceptable C compiler found in \$PATH" >&2;}
    { (exit 1); exit 1; }; }
 
 # Provide some information about the compiler.
-echo "$as_me:1285:" \
+echo "$as_me:$LINENO:" \
      "checking for C compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
-{ (eval echo "$as_me:1288: \"$ac_compiler --version </dev/null >&5\"") >&5
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
   (eval $ac_compiler --version </dev/null >&5) 2>&5
   ac_status=$?
-  echo "$as_me:1291: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }
-{ (eval echo "$as_me:1293: \"$ac_compiler -v </dev/null >&5\"") >&5
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
   (eval $ac_compiler -v </dev/null >&5) 2>&5
   ac_status=$?
-  echo "$as_me:1296: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }
-{ (eval echo "$as_me:1298: \"$ac_compiler -V </dev/null >&5\"") >&5
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
   (eval $ac_compiler -V </dev/null >&5) 2>&5
   ac_status=$?
-  echo "$as_me:1301: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 1305 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1318,22 +1570,26 @@ ac_clean_files="$ac_clean_files a.out a.exe"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-echo "$as_me:1321: checking for C compiler default output" >&5
+echo "$as_me:$LINENO: checking for C compiler default output" >&5
 echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6
 ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
-if { (eval echo "$as_me:1324: \"$ac_link_default\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
   (eval $ac_link_default) 2>&5
   ac_status=$?
-  echo "$as_me:1327: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
   # Find the output, starting from the most likely.  This scheme is
 # not robust to junk in `.', hence go to wildcards (a.*) only as a last
 # resort.
-for ac_file in `ls a.exe conftest.exe 2>/dev/null;
+
+# Be careful to initialize this variable, since it used to be cached.
+# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
+ac_cv_exeext=
+for ac_file in `ls a_out.exe a.exe conftest.exe 2>/dev/null;
                 ls a.out conftest 2>/dev/null;
                 ls a.* conftest.* 2>/dev/null`; do
   case $ac_file in
-    *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb ) ;;
+    *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb | *.xSYM ) ;;
     a.out ) # We found the default executable, but exeext='' is most
             # certainly right.
             break;;
@@ -1347,34 +1603,34 @@ done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-{ { echo "$as_me:1350: error: C compiler cannot create executables" >&5
+{ { echo "$as_me:$LINENO: error: C compiler cannot create executables" >&5
 echo "$as_me: error: C compiler cannot create executables" >&2;}
    { (exit 77); exit 77; }; }
 fi
 
 ac_exeext=$ac_cv_exeext
-echo "$as_me:1356: result: $ac_file" >&5
+echo "$as_me:$LINENO: result: $ac_file" >&5
 echo "${ECHO_T}$ac_file" >&6
 
 # Check the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-echo "$as_me:1361: checking whether the C compiler works" >&5
+echo "$as_me:$LINENO: checking whether the C compiler works" >&5
 echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6
 # FIXME: These cross compiler hacks should be removed for Autoconf 3.0
 # If not cross compiling, check that we can run a simple program.
 if test "$cross_compiling" != yes; then
   if { ac_try='./$ac_file'
-  { (eval echo "$as_me:1367: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1370: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
     cross_compiling=no
   else
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { echo "$as_me:1377: error: cannot run C compiled programs.
+	{ { echo "$as_me:$LINENO: error: cannot run C compiled programs.
 If you meant to cross compile, use \`--host'." >&5
 echo "$as_me: error: cannot run C compiled programs.
 If you meant to cross compile, use \`--host'." >&2;}
@@ -1382,24 +1638,24 @@ If you meant to cross compile, use \`--host'." >&2;}
     fi
   fi
 fi
-echo "$as_me:1385: result: yes" >&5
+echo "$as_me:$LINENO: result: yes" >&5
 echo "${ECHO_T}yes" >&6
 
 rm -f a.out a.exe conftest$ac_cv_exeext
 ac_clean_files=$ac_clean_files_save
 # Check the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-echo "$as_me:1392: checking whether we are cross compiling" >&5
+echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
 echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
-echo "$as_me:1394: result: $cross_compiling" >&5
+echo "$as_me:$LINENO: result: $cross_compiling" >&5
 echo "${ECHO_T}$cross_compiling" >&6
 
-echo "$as_me:1397: checking for executable suffix" >&5
-echo $ECHO_N "checking for executable suffix... $ECHO_C" >&6
-if { (eval echo "$as_me:1399: \"$ac_link\"") >&5
+echo "$as_me:$LINENO: checking for suffix of executables" >&5
+echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:1402: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
@@ -1415,27 +1671,33 @@ for ac_file in `(ls conftest.exe; ls conftest; ls conftest.*) 2>/dev/null`; do
   esac
 done
 else
-  { { echo "$as_me:1418: error: cannot compute EXEEXT: cannot compile and link" >&5
-echo "$as_me: error: cannot compute EXEEXT: cannot compile and link" >&2;}
+  { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link" >&5
+echo "$as_me: error: cannot compute suffix of executables: cannot compile and link" >&2;}
    { (exit 1); exit 1; }; }
 fi
 
 rm -f conftest$ac_cv_exeext
-echo "$as_me:1424: result: $ac_cv_exeext" >&5
+echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
 echo "${ECHO_T}$ac_cv_exeext" >&6
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
 ac_exeext=$EXEEXT
-echo "$as_me:1430: checking for object suffix" >&5
-echo $ECHO_N "checking for object suffix... $ECHO_C" >&6
+echo "$as_me:$LINENO: checking for suffix of object files" >&5
+echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
 if test "${ac_cv_objext+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 1436 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1445,10 +1707,10 @@ main ()
 }
 _ACEOF
 rm -f conftest.o conftest.obj
-if { (eval echo "$as_me:1448: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1451: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
   for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
   case $ac_file in
@@ -1460,26 +1722,32 @@ done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-{ { echo "$as_me:1463: error: cannot compute OBJEXT: cannot compile" >&5
-echo "$as_me: error: cannot compute OBJEXT: cannot compile" >&2;}
+{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile" >&5
+echo "$as_me: error: cannot compute suffix of object files: cannot compile" >&2;}
    { (exit 1); exit 1; }; }
 fi
 
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
-echo "$as_me:1470: result: $ac_cv_objext" >&5
+echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
 echo "${ECHO_T}$ac_cv_objext" >&6
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-echo "$as_me:1474: checking whether we are using the GNU C compiler" >&5
+echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
 echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
 if test "${ac_cv_c_compiler_gnu+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 1480 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1492,16 +1760,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1495: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1498: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1501: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1504: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_compiler_gnu=yes
 else
@@ -1513,21 +1781,27 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-echo "$as_me:1516: result: $ac_cv_c_compiler_gnu" >&5
+echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
 echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
 GCC=`test $ac_compiler_gnu = yes && echo yes`
 ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
 CFLAGS="-g"
-echo "$as_me:1522: checking whether $CC accepts -g" >&5
+echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
 echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
 if test "${ac_cv_prog_cc_g+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 1528 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1537,16 +1811,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1540: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1543: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1546: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1549: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_prog_cc_g=yes
 else
@@ -1556,7 +1830,7 @@ ac_cv_prog_cc_g=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:1559: result: $ac_cv_prog_cc_g" >&5
+echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
 echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
 if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
@@ -1583,16 +1857,16 @@ cat >conftest.$ac_ext <<_ACEOF
 #endif
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1586: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1589: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1592: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1595: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   for ac_declaration in \
    ''\
@@ -1604,10 +1878,16 @@ if { (eval echo "$as_me:1586: \"$ac_compile\"") >&5
    'void exit (int);'
 do
   cat >conftest.$ac_ext <<_ACEOF
-#line 1607 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 $ac_declaration
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1617,16 +1897,16 @@ exit (42);
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1620: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1623: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1626: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1629: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   :
 else
@@ -1636,9 +1916,15 @@ continue
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   cat >conftest.$ac_ext <<_ACEOF
-#line 1639 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_declaration
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -1648,16 +1934,16 @@ exit (42);
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1651: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1654: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1657: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1660: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   break
 else
@@ -1684,6 +1970,10 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+
+
+
+
 # Check whether --enable-rational-trees or --disable-rational-trees was given.
 if test "${enable_rational_trees+set}" = set; then
   enableval="$enable_rational_trees"
@@ -1752,6 +2042,14 @@ if test "${enable_cygwin+set}" = set; then
 else
   cygwin=no
 fi;
+# Check whether --enable-dynamic_loading or --disable-dynamic_loading was given.
+if test "${enable_dynamic_loading+set}" = set; then
+  enableval="$enable_dynamic_loading"
+  dynamic_loading="$enableval"
+else
+  dynamic_loading=no
+fi;
+
 
 # Check whether --with-gmp or --without-gmp was given.
 if test "${with_gmp+set}" = set; then
@@ -1769,6 +2067,7 @@ else
   yap_cv_gmp=yes
 fi;
 
+
 # Check whether --with-readline or --without-readline was given.
 if test "${with_readline+set}" = set; then
   withval="$with_readline"
@@ -1785,6 +2084,7 @@ else
   yap_cv_readline=yes
 fi;
 
+
 # Check whether --with-mpi or --without-mpi was given.
 if test "${with_mpi+set}" = set; then
   withval="$with_mpi"
@@ -1801,6 +2101,7 @@ else
   yap_cv_mpi=no
 fi;
 
+
 # Check whether --with-mpe or --without-mpe was given.
 if test "${with_mpe+set}" = set; then
   withval="$with_mpe"
@@ -1817,6 +2118,7 @@ else
   yap_cv_mpe=no
 fi;
 
+
 # Check whether --with-heap-space or --without-heap-space was given.
 if test "${with_heap_space+set}" = set; then
   withval="$with_heap_space"
@@ -1831,6 +2133,7 @@ else
   yap_cv_heap_space=0
 fi;
 
+
 # Check whether --with-stack-space or --without-stack-space was given.
 if test "${with_stack_space+set}" = set; then
   withval="$with_stack_space"
@@ -1845,6 +2148,7 @@ else
   yap_cv_stack_space=0
 fi;
 
+
 # Check whether --with-trail-space or --without-trail-space was given.
 if test "${with_trail_space+set}" = set; then
   withval="$with_trail_space"
@@ -1861,44 +2165,44 @@ fi;
 
 if test $tabling = yes -o $orparallelism = yes
 then
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define MinHeapSpace (400*SIZEOF_INT_P)
-EOF
+_ACEOF
 
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define MinStackSpace (300*SIZEOF_INT_P)
-EOF
+_ACEOF
 
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define MinTrailSpace ( 48*SIZEOF_INT_P)
-EOF
+_ACEOF
 
 else
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define MinHeapSpace (200*SIZEOF_INT_P)
-EOF
+_ACEOF
 
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define MinStackSpace (200*SIZEOF_INT_P)
-EOF
+_ACEOF
 
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define MinTrailSpace ( 32*SIZEOF_INT_P)
-EOF
+_ACEOF
 
 fi
 
-eval "cat >>confdefs.h <<\EOF
+eval "cat >>confdefs.h <<\_ACEOF
 #define DefHeapSpace ($yap_cv_heap_space)
-EOF
+_ACEOF
 "
-eval "cat >>confdefs.h <<\EOF
+eval "cat >>confdefs.h <<\_ACEOF
 #define DefStackSpace ($yap_cv_stack_space)
-EOF
+_ACEOF
 "
-eval "cat >>confdefs.h <<\EOF
+eval "cat >>confdefs.h <<\_ACEOF
 #define DefTrailSpace ($yap_cv_trail_space)
-EOF
+_ACEOF
 "
 
 ac_aux_dir=
@@ -1918,7 +2222,7 @@ for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
   fi
 done
 if test -z "$ac_aux_dir"; then
-  { { echo "$as_me:1921: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&5
+  { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&5
 echo "$as_me: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&2;}
    { (exit 1); exit 1; }; }
 fi
@@ -1928,11 +2232,11 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
 
 # Make sure we can run config.sub.
 $ac_config_sub sun4 >/dev/null 2>&1 ||
-  { { echo "$as_me:1931: error: cannot run $ac_config_sub" >&5
+  { { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5
 echo "$as_me: error: cannot run $ac_config_sub" >&2;}
    { (exit 1); exit 1; }; }
 
-echo "$as_me:1935: checking build system type" >&5
+echo "$as_me:$LINENO: checking build system type" >&5
 echo $ECHO_N "checking build system type... $ECHO_C" >&6
 if test "${ac_cv_build+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1941,23 +2245,24 @@ else
 test -z "$ac_cv_build_alias" &&
   ac_cv_build_alias=`$ac_config_guess`
 test -z "$ac_cv_build_alias" &&
-  { { echo "$as_me:1944: error: cannot guess build type; you must specify one" >&5
+  { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
 echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
    { (exit 1); exit 1; }; }
 ac_cv_build=`$ac_config_sub $ac_cv_build_alias` ||
-  { { echo "$as_me:1948: error: $ac_config_sub $ac_cv_build_alias failed." >&5
-echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed." >&2;}
+  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_build_alias failed" >&5
+echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed" >&2;}
    { (exit 1); exit 1; }; }
 
 fi
-echo "$as_me:1953: result: $ac_cv_build" >&5
+echo "$as_me:$LINENO: result: $ac_cv_build" >&5
 echo "${ECHO_T}$ac_cv_build" >&6
 build=$ac_cv_build
 build_cpu=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 build_vendor=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 build_os=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 
-echo "$as_me:1960: checking host system type" >&5
+
+echo "$as_me:$LINENO: checking host system type" >&5
 echo $ECHO_N "checking host system type... $ECHO_C" >&6
 if test "${ac_cv_host+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1966,19 +2271,20 @@ else
 test -z "$ac_cv_host_alias" &&
   ac_cv_host_alias=$ac_cv_build_alias
 ac_cv_host=`$ac_config_sub $ac_cv_host_alias` ||
-  { { echo "$as_me:1969: error: $ac_config_sub $ac_cv_host_alias failed" >&5
+  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_host_alias failed" >&5
 echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;}
    { (exit 1); exit 1; }; }
 
 fi
-echo "$as_me:1974: result: $ac_cv_host" >&5
+echo "$as_me:$LINENO: result: $ac_cv_host" >&5
 echo "${ECHO_T}$ac_cv_host" >&6
 host=$ac_cv_host
 host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 
-echo "$as_me:1981: checking target system type" >&5
+
+echo "$as_me:$LINENO: checking target system type" >&5
 echo $ECHO_N "checking target system type... $ECHO_C" >&6
 if test "${ac_cv_target+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1987,18 +2293,19 @@ else
 test "x$ac_cv_target_alias" = "x" &&
   ac_cv_target_alias=$ac_cv_host_alias
 ac_cv_target=`$ac_config_sub $ac_cv_target_alias` ||
-  { { echo "$as_me:1990: error: $ac_config_sub $ac_cv_target_alias failed" >&5
+  { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_target_alias failed" >&5
 echo "$as_me: error: $ac_config_sub $ac_cv_target_alias failed" >&2;}
    { (exit 1); exit 1; }; }
 
 fi
-echo "$as_me:1995: result: $ac_cv_target" >&5
+echo "$as_me:$LINENO: result: $ac_cv_target" >&5
 echo "${ECHO_T}$ac_cv_target" >&6
 target=$ac_cv_target
 target_cpu=`echo $ac_cv_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 target_vendor=`echo $ac_cv_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 target_os=`echo $ac_cv_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 
+
 # The aliases save the names the user supplied, while $host etc.
 # will get canonicalized.
 test -n "$target_alias" &&
@@ -2006,9 +2313,10 @@ test -n "$target_alias" &&
     NONENONEs,x,x, &&
   program_prefix=${target_alias}-
 
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define HOST_ALIAS "${host}"
-EOF
+_ACEOF
+
 
 if test "$GCC" = "yes"
 then
@@ -2086,14 +2394,14 @@ else
    C_PARSER_FLAGS="$CFLAGS"
 fi
 
-echo "$as_me:2089: checking whether ln -s works" >&5
+echo "$as_me:$LINENO: checking whether ln -s works" >&5
 echo $ECHO_N "checking whether ln -s works... $ECHO_C" >&6
 LN_S=$as_ln_s
 if test "$LN_S" = "ln -s"; then
-  echo "$as_me:2093: result: yes" >&5
+  echo "$as_me:$LINENO: result: yes" >&5
 echo "${ECHO_T}yes" >&6
 else
-  echo "$as_me:2096: result: no, using $LN_S" >&5
+  echo "$as_me:$LINENO: result: no, using $LN_S" >&5
 echo "${ECHO_T}no, using $LN_S" >&6
 fi
 
@@ -2109,43 +2417,48 @@ fi
 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
-echo "$as_me:2112: checking for a BSD compatible install" >&5
-echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" >&6
+echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
 if test -z "$INSTALL"; then
 if test "${ac_cv_path_install+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-    ac_save_IFS=$IFS; IFS=$ac_path_separator
-  for ac_dir in $PATH; do
-    IFS=$ac_save_IFS
-    # Account for people who put trailing slashes in PATH elements.
-    case $ac_dir/ in
-    / | ./ | .// | /cC/* \
-    | /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* \
-    | /usr/ucb/* ) ;;
-    *)
-      # OSF1 and SCO ODT 3.0 have their own names for install.
-      # Don't use installbsd from OSF since it installs stuff as root
-      # by default.
-      for ac_prog in ginstall scoinst install; do
-        if $as_executable_p "$ac_dir/$ac_prog"; then
-	  if test $ac_prog = install &&
-            grep dspmsg "$ac_dir/$ac_prog" >/dev/null 2>&1; then
-	    # AIX install.  It has an incompatible calling convention.
-	    :
-	  elif test $ac_prog = install &&
-	    grep pwplus "$ac_dir/$ac_prog" >/dev/null 2>&1; then
-	    # program-specific install script used by HP pwplus--don't use.
-	    :
-	  else
-	    ac_cv_path_install="$ac_dir/$ac_prog -c"
-	    break 2
-	  fi
-	fi
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in
+  ./ | .// | /cC/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+        if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+          if test $ac_prog = install &&
+            grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+            # AIX install.  It has an incompatible calling convention.
+            :
+          elif test $ac_prog = install &&
+            grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+            # program-specific install script used by HP pwplus--don't use.
+            :
+          else
+            ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+            break 3
+          fi
+        fi
       done
-      ;;
-    esac
-  done
+    done
+    ;;
+esac
+done
+
 
 fi
   if test "${ac_cv_path_install+set}" = set; then
@@ -2158,7 +2471,7 @@ fi
     INSTALL=$ac_install_sh
   fi
 fi
-echo "$as_me:2161: result: $INSTALL" >&5
+echo "$as_me:$LINENO: result: $INSTALL" >&5
 echo "${ECHO_T}$INSTALL" >&6
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
@@ -2172,7 +2485,7 @@ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-echo "$as_me:2175: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_RANLIB+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2180,25 +2493,28 @@ else
   if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-echo "$as_me:2190: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
-  echo "$as_me:2198: result: $RANLIB" >&5
+  echo "$as_me:$LINENO: result: $RANLIB" >&5
 echo "${ECHO_T}$RANLIB" >&6
 else
-  echo "$as_me:2201: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2207,7 +2523,7 @@ if test -z "$ac_cv_prog_RANLIB"; then
   ac_ct_RANLIB=$RANLIB
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
-echo "$as_me:2210: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2215,15 +2531,18 @@ else
   if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_ac_ct_RANLIB="ranlib"
-echo "$as_me:2225: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
   test -z "$ac_cv_prog_ac_ct_RANLIB" && ac_cv_prog_ac_ct_RANLIB=":"
@@ -2231,10 +2550,10 @@ fi
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
-  echo "$as_me:2234: result: $ac_ct_RANLIB" >&5
+  echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
 echo "${ECHO_T}$ac_ct_RANLIB" >&6
 else
-  echo "$as_me:2237: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2246,7 +2565,7 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}indent", so it can be a program name with args.
 set dummy ${ac_tool_prefix}indent; ac_word=$2
-echo "$as_me:2249: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_INDENT+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2254,25 +2573,28 @@ else
   if test -n "$INDENT"; then
   ac_cv_prog_INDENT="$INDENT" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_INDENT="${ac_tool_prefix}indent"
-echo "$as_me:2264: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_INDENT="${ac_tool_prefix}indent"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 INDENT=$ac_cv_prog_INDENT
 if test -n "$INDENT"; then
-  echo "$as_me:2272: result: $INDENT" >&5
+  echo "$as_me:$LINENO: result: $INDENT" >&5
 echo "${ECHO_T}$INDENT" >&6
 else
-  echo "$as_me:2275: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2281,7 +2603,7 @@ if test -z "$ac_cv_prog_INDENT"; then
   ac_ct_INDENT=$INDENT
   # Extract the first word of "indent", so it can be a program name with args.
 set dummy indent; ac_word=$2
-echo "$as_me:2284: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_INDENT+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2289,15 +2611,18 @@ else
   if test -n "$ac_ct_INDENT"; then
   ac_cv_prog_ac_ct_INDENT="$ac_ct_INDENT" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_ac_ct_INDENT="indent"
-echo "$as_me:2299: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_INDENT="indent"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
   test -z "$ac_cv_prog_ac_ct_INDENT" && ac_cv_prog_ac_ct_INDENT=":"
@@ -2305,10 +2630,10 @@ fi
 fi
 ac_ct_INDENT=$ac_cv_prog_ac_ct_INDENT
 if test -n "$ac_ct_INDENT"; then
-  echo "$as_me:2308: result: $ac_ct_INDENT" >&5
+  echo "$as_me:$LINENO: result: $ac_ct_INDENT" >&5
 echo "${ECHO_T}$ac_ct_INDENT" >&6
 else
-  echo "$as_me:2311: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2320,7 +2645,7 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ar; ac_word=$2
-echo "$as_me:2323: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_AR+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2328,25 +2653,28 @@ else
   if test -n "$AR"; then
   ac_cv_prog_AR="$AR" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_AR="${ac_tool_prefix}ar"
-echo "$as_me:2338: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
-  echo "$as_me:2346: result: $AR" >&5
+  echo "$as_me:$LINENO: result: $AR" >&5
 echo "${ECHO_T}$AR" >&6
 else
-  echo "$as_me:2349: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2355,7 +2683,7 @@ if test -z "$ac_cv_prog_AR"; then
   ac_ct_AR=$AR
   # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
-echo "$as_me:2358: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_AR+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2363,15 +2691,18 @@ else
   if test -n "$ac_ct_AR"; then
   ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_ac_ct_AR="ar"
-echo "$as_me:2373: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
   test -z "$ac_cv_prog_ac_ct_AR" && ac_cv_prog_ac_ct_AR=":"
@@ -2379,10 +2710,10 @@ fi
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
-  echo "$as_me:2382: result: $ac_ct_AR" >&5
+  echo "$as_me:$LINENO: result: $ac_ct_AR" >&5
 echo "${ECHO_T}$ac_ct_AR" >&6
 else
-  echo "$as_me:2385: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2394,7 +2725,7 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}mpicc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}mpicc; ac_word=$2
-echo "$as_me:2397: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_MPI_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2402,25 +2733,28 @@ else
   if test -n "$MPI_CC"; then
   ac_cv_prog_MPI_CC="$MPI_CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_MPI_CC="${ac_tool_prefix}mpicc"
-echo "$as_me:2412: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_MPI_CC="${ac_tool_prefix}mpicc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
 fi
 fi
 MPI_CC=$ac_cv_prog_MPI_CC
 if test -n "$MPI_CC"; then
-  echo "$as_me:2420: result: $MPI_CC" >&5
+  echo "$as_me:$LINENO: result: $MPI_CC" >&5
 echo "${ECHO_T}$MPI_CC" >&6
 else
-  echo "$as_me:2423: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2429,7 +2763,7 @@ if test -z "$ac_cv_prog_MPI_CC"; then
   ac_ct_MPI_CC=$MPI_CC
   # Extract the first word of "mpicc", so it can be a program name with args.
 set dummy mpicc; ac_word=$2
-echo "$as_me:2432: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_MPI_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2437,15 +2771,18 @@ else
   if test -n "$ac_ct_MPI_CC"; then
   ac_cv_prog_ac_ct_MPI_CC="$ac_ct_MPI_CC" # Let the user override the test.
 else
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  $as_executable_p "$ac_dir/$ac_word" || continue
-ac_cv_prog_ac_ct_MPI_CC="mpicc"
-echo "$as_me:2447: found $ac_dir/$ac_word" >&5
-break
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_MPI_CC="mpicc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
   test -z "$ac_cv_prog_ac_ct_MPI_CC" && ac_cv_prog_ac_ct_MPI_CC=":"
@@ -2453,10 +2790,10 @@ fi
 fi
 ac_ct_MPI_CC=$ac_cv_prog_ac_ct_MPI_CC
 if test -n "$ac_ct_MPI_CC"; then
-  echo "$as_me:2456: result: $ac_ct_MPI_CC" >&5
+  echo "$as_me:$LINENO: result: $ac_ct_MPI_CC" >&5
 echo "${ECHO_T}$ac_ct_MPI_CC" >&6
 else
-  echo "$as_me:2459: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2467,7 +2804,7 @@ fi
 
 # Extract the first word of "install-info", so it can be a program name with args.
 set dummy install-info; ac_word=$2
-echo "$as_me:2470: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_path_INSTALL_INFO+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2477,16 +2814,18 @@ else
   ac_cv_path_INSTALL_INFO="$INSTALL_INFO" # Let the user override the test with a path.
   ;;
   *)
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH:/sbin:/usr/sbin:/usr/etc:/usr/local/sbin"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  if $as_executable_p "$ac_dir/$ac_word"; then
-   ac_cv_path_INSTALL_INFO="$ac_dir/$ac_word"
-   echo "$as_me:2487: found $ac_dir/$ac_word" >&5
-   break
-fi
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH:/sbin:/usr/sbin:/usr/etc:/usr/local/sbin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_INSTALL_INFO="$as_dir/$ac_word$ac_exec_ext"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
   test -z "$ac_cv_path_INSTALL_INFO" && ac_cv_path_INSTALL_INFO="true"
@@ -2496,16 +2835,16 @@ fi
 INSTALL_INFO=$ac_cv_path_INSTALL_INFO
 
 if test -n "$INSTALL_INFO"; then
-  echo "$as_me:2499: result: $INSTALL_INFO" >&5
+  echo "$as_me:$LINENO: result: $INSTALL_INFO" >&5
 echo "${ECHO_T}$INSTALL_INFO" >&6
 else
-  echo "$as_me:2502: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
 # Extract the first word of "sh", so it can be a program name with args.
 set dummy sh; ac_word=$2
-echo "$as_me:2508: checking for $ac_word" >&5
+echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_path_SHELL+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2515,16 +2854,18 @@ else
   ac_cv_path_SHELL="$SHELL" # Let the user override the test with a path.
   ;;
   *)
-  ac_save_IFS=$IFS; IFS=$ac_path_separator
-ac_dummy="$PATH"
-for ac_dir in $ac_dummy; do
-  IFS=$ac_save_IFS
-  test -z "$ac_dir" && ac_dir=.
-  if $as_executable_p "$ac_dir/$ac_word"; then
-   ac_cv_path_SHELL="$ac_dir/$ac_word"
-   echo "$as_me:2525: found $ac_dir/$ac_word" >&5
-   break
-fi
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_SHELL="$as_dir/$ac_word$ac_exec_ext"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
 done
 
   ;;
@@ -2533,13 +2874,17 @@ fi
 SHELL=$ac_cv_path_SHELL
 
 if test -n "$SHELL"; then
-  echo "$as_me:2536: result: $SHELL" >&5
+  echo "$as_me:$LINENO: result: $SHELL" >&5
 echo "${ECHO_T}$SHELL" >&6
 else
-  echo "$as_me:2539: result: no" >&5
+  echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
+
+
+
+
 if test "$target_os" = "cygwin"
 then
   INSTALL_COMMAND=install_win32
@@ -2547,7 +2892,8 @@ then
   then
     CC="gcc  -mno-cygwin"
 
-echo "$as_me:2550: checking for main in -lwsock32" >&5
+
+echo "$as_me:$LINENO: checking for main in -lwsock32" >&5
 echo $ECHO_N "checking for main in -lwsock32... $ECHO_C" >&6
 if test "${ac_cv_lib_wsock32_main+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2555,9 +2901,16 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lwsock32  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2558 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2567,16 +2920,16 @@ main ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2570: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2573: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2576: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2579: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_wsock32_main=yes
 else
@@ -2587,12 +2940,12 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2590: result: $ac_cv_lib_wsock32_main" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_wsock32_main" >&5
 echo "${ECHO_T}$ac_cv_lib_wsock32_main" >&6
 if test $ac_cv_lib_wsock32_main = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBWSOCK32 1
-EOF
+_ACEOF
 
   LIBS="-lwsock32 $LIBS"
 
@@ -2608,7 +2961,7 @@ else
   DLL_LIBS=""
   INSTALL_COMMAND="install_unix"
 
-echo "$as_me:2611: checking for sin in -lm" >&5
+echo "$as_me:$LINENO: checking for sin in -lm" >&5
 echo $ECHO_N "checking for sin in -lm... $ECHO_C" >&6
 if test "${ac_cv_lib_m_sin+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2616,7 +2969,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2619 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -2626,6 +2979,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char sin ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2635,16 +2994,16 @@ sin ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2638: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2641: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2644: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2647: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_m_sin=yes
 else
@@ -2655,18 +3014,19 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2658: result: $ac_cv_lib_m_sin" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_m_sin" >&5
 echo "${ECHO_T}$ac_cv_lib_m_sin" >&6
 if test $ac_cv_lib_m_sin = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBM 1
-EOF
+_ACEOF
 
   LIBS="-lm $LIBS"
 
 fi
 
-echo "$as_me:2669: checking for socket in -lsocket" >&5
+
+echo "$as_me:$LINENO: checking for socket in -lsocket" >&5
 echo $ECHO_N "checking for socket in -lsocket... $ECHO_C" >&6
 if test "${ac_cv_lib_socket_socket+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2674,7 +3034,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsocket  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2677 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -2684,6 +3044,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char socket ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2693,16 +3059,16 @@ socket ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2696: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2699: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2702: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2705: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_socket_socket=yes
 else
@@ -2713,18 +3079,18 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2716: result: $ac_cv_lib_socket_socket" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_socket_socket" >&5
 echo "${ECHO_T}$ac_cv_lib_socket_socket" >&6
 if test $ac_cv_lib_socket_socket = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBSOCKET 1
-EOF
+_ACEOF
 
   LIBS="-lsocket $LIBS"
 
 fi
 
-  echo "$as_me:2727: checking for main in -lnsl" >&5
+  echo "$as_me:$LINENO: checking for main in -lnsl" >&5
 echo $ECHO_N "checking for main in -lnsl... $ECHO_C" >&6
 if test "${ac_cv_lib_nsl_main+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2732,9 +3098,16 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lnsl  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2735 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2744,16 +3117,16 @@ main ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2747: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2750: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2753: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2756: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_nsl_main=yes
 else
@@ -2764,7 +3137,7 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2767: result: $ac_cv_lib_nsl_main" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_nsl_main" >&5
 echo "${ECHO_T}$ac_cv_lib_nsl_main" >&6
 if test $ac_cv_lib_nsl_main = yes; then
   have_nsl=yes
@@ -2773,7 +3146,7 @@ else
   have_nsl=no
 fi
 
-  echo "$as_me:2776: checking for dlopen in -ldl" >&5
+  echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
 echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
 if test "${ac_cv_lib_dl_dlopen+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2781,7 +3154,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2784 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -2791,6 +3164,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char dlopen ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2800,16 +3179,16 @@ dlopen ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2803: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2806: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2809: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2812: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_dl_dlopen=yes
 else
@@ -2820,7 +3199,7 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2823: result: $ac_cv_lib_dl_dlopen" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
 echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
 if test $ac_cv_lib_dl_dlopen = yes; then
   	have_dl=yes
@@ -2833,7 +3212,7 @@ fi
 if test "$yap_cv_readline" != "no"
 then
 
-echo "$as_me:2836: checking for tgetent in -ltermcap" >&5
+echo "$as_me:$LINENO: checking for tgetent in -ltermcap" >&5
 echo $ECHO_N "checking for tgetent in -ltermcap... $ECHO_C" >&6
 if test "${ac_cv_lib_termcap_tgetent+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2841,7 +3220,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-ltermcap  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2844 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -2851,6 +3230,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char tgetent ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2860,16 +3245,16 @@ tgetent ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2863: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2866: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2869: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2872: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_termcap_tgetent=yes
 else
@@ -2880,18 +3265,19 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2883: result: $ac_cv_lib_termcap_tgetent" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_termcap_tgetent" >&5
 echo "${ECHO_T}$ac_cv_lib_termcap_tgetent" >&6
 if test $ac_cv_lib_termcap_tgetent = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBTERMCAP 1
-EOF
+_ACEOF
 
   LIBS="-ltermcap $LIBS"
 
 fi
 
-echo "$as_me:2894: checking for readline in -lreadline" >&5
+
+echo "$as_me:$LINENO: checking for readline in -lreadline" >&5
 echo $ECHO_N "checking for readline in -lreadline... $ECHO_C" >&6
 if test "${ac_cv_lib_readline_readline+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2899,7 +3285,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lreadline  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2902 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -2909,6 +3295,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char readline ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2918,16 +3310,16 @@ readline ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2921: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2924: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2927: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2930: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_readline_readline=yes
 else
@@ -2938,12 +3330,12 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2941: result: $ac_cv_lib_readline_readline" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_readline_readline" >&5
 echo "${ECHO_T}$ac_cv_lib_readline_readline" >&6
 if test $ac_cv_lib_readline_readline = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBREADLINE 1
-EOF
+_ACEOF
 
   LIBS="-lreadline $LIBS"
 
@@ -2953,7 +3345,7 @@ fi
 if test "$yap_cv_gmp" != "no"
 then
 
-echo "$as_me:2956: checking for main in -lgmp" >&5
+echo "$as_me:$LINENO: checking for main in -lgmp" >&5
 echo $ECHO_N "checking for main in -lgmp... $ECHO_C" >&6
 if test "${ac_cv_lib_gmp_main+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2961,9 +3353,16 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgmp  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 2964 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -2973,16 +3372,16 @@ main ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:2976: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:2979: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:2982: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2985: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_gmp_main=yes
 else
@@ -2993,12 +3392,12 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:2996: result: $ac_cv_lib_gmp_main" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_gmp_main" >&5
 echo "${ECHO_T}$ac_cv_lib_gmp_main" >&6
 if test $ac_cv_lib_gmp_main = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBGMP 1
-EOF
+_ACEOF
 
   LIBS="-lgmp $LIBS"
 
@@ -3011,7 +3410,7 @@ if test "$yap_cv_mpi" != "no"
 then
   OLD_CC=${CC}
   CC=${MPI_CC}
-  echo "$as_me:3014: checking for MPI_Init in -lmpi" >&5
+  echo "$as_me:$LINENO: checking for MPI_Init in -lmpi" >&5
 echo $ECHO_N "checking for MPI_Init in -lmpi... $ECHO_C" >&6
 if test "${ac_cv_lib_mpi_MPI_Init+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3019,7 +3418,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lmpi  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 3022 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -3029,6 +3428,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char MPI_Init ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3038,16 +3443,16 @@ MPI_Init ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3041: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3044: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3047: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3050: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_mpi_MPI_Init=yes
 else
@@ -3058,17 +3463,17 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:3061: result: $ac_cv_lib_mpi_MPI_Init" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_mpi_MPI_Init" >&5
 echo "${ECHO_T}$ac_cv_lib_mpi_MPI_Init" >&6
 if test $ac_cv_lib_mpi_MPI_Init = yes; then
-  cat >>confdefs.h <<\EOF
+  cat >>confdefs.h <<\_ACEOF
 #define HAVE_LIBMPI 1
-EOF
+_ACEOF
 
 else
-  cat >>confdefs.h <<\EOF
+  cat >>confdefs.h <<\_ACEOF
 #define HAVE_LIBMPI 0
-EOF
+_ACEOF
 
 fi
 
@@ -3077,7 +3482,7 @@ fi
 	#YAPMPILIB=YapMPI.a
 	MPI_OBJS=mpi.o
   else
-    echo "$as_me:3080: checking for MPI_Init in -lmpich" >&5
+    echo "$as_me:$LINENO: checking for MPI_Init in -lmpich" >&5
 echo $ECHO_N "checking for MPI_Init in -lmpich... $ECHO_C" >&6
 if test "${ac_cv_lib_mpich_MPI_Init+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3085,7 +3490,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lmpich  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 3088 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -3095,6 +3500,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char MPI_Init ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3104,16 +3515,16 @@ MPI_Init ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3107: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3110: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3113: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3116: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_mpich_MPI_Init=yes
 else
@@ -3124,17 +3535,17 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:3127: result: $ac_cv_lib_mpich_MPI_Init" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_mpich_MPI_Init" >&5
 echo "${ECHO_T}$ac_cv_lib_mpich_MPI_Init" >&6
 if test $ac_cv_lib_mpich_MPI_Init = yes; then
-  cat >>confdefs.h <<\EOF
+  cat >>confdefs.h <<\_ACEOF
 #define HAVE_LIBMPICH 1
-EOF
+_ACEOF
 
 else
-  cat >>confdefs.h <<\EOF
+  cat >>confdefs.h <<\_ACEOF
 #define HAVE_LIBMPICH 0
-EOF
+_ACEOF
 
 fi
 
@@ -3157,7 +3568,7 @@ if test "$yap_cv_mpe" != "no"
 then
   OLD_CC=${CC}
   CC=${MPI_CC}
-  echo "$as_me:3160: checking for MPE_Init_log in -lmpe" >&5
+  echo "$as_me:$LINENO: checking for MPE_Init_log in -lmpe" >&5
 echo $ECHO_N "checking for MPE_Init_log in -lmpe... $ECHO_C" >&6
 if test "${ac_cv_lib_mpe_MPE_Init_log+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3165,7 +3576,7 @@ else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lmpe  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
-#line 3168 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
 /* Override any gcc2 internal prototype to avoid an error.  */
@@ -3175,6 +3586,12 @@ extern "C"
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
 char MPE_Init_log ();
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3184,16 +3601,16 @@ MPE_Init_log ();
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3187: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3190: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3193: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3196: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_lib_mpe_MPE_Init_log=yes
 else
@@ -3204,17 +3621,17 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:3207: result: $ac_cv_lib_mpe_MPE_Init_log" >&5
+echo "$as_me:$LINENO: result: $ac_cv_lib_mpe_MPE_Init_log" >&5
 echo "${ECHO_T}$ac_cv_lib_mpe_MPE_Init_log" >&6
 if test $ac_cv_lib_mpe_MPE_Init_log = yes; then
-  cat >>confdefs.h <<\EOF
+  cat >>confdefs.h <<\_ACEOF
 #define HAVE_LIBMPE 1
-EOF
+_ACEOF
 
 else
-  cat >>confdefs.h <<\EOF
+  cat >>confdefs.h <<\_ACEOF
 #define HAVE_LIBMPE 0
-EOF
+_ACEOF
 
 fi
 
@@ -3226,12 +3643,16 @@ fi
   CC=${OLD_CC}
 fi
 
+
+
+
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-echo "$as_me:3234: checking how to run the C preprocessor" >&5
+echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
 echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
@@ -3252,18 +3673,18 @@ do
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat >conftest.$ac_ext <<_ACEOF
-#line 3255 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <assert.h>
                      Syntax error
 _ACEOF
-if { (eval echo "$as_me:3260: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:3266: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3286,17 +3707,17 @@ rm -f conftest.err conftest.$ac_ext
   # OK, works on sane cases.  Now check whether non-existent headers
   # can be detected and how.
   cat >conftest.$ac_ext <<_ACEOF
-#line 3289 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <ac_nonexistent.h>
 _ACEOF
-if { (eval echo "$as_me:3293: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:3299: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3333,7 +3754,7 @@ fi
 else
   ac_cv_prog_CPP=$CPP
 fi
-echo "$as_me:3336: result: $CPP" >&5
+echo "$as_me:$LINENO: result: $CPP" >&5
 echo "${ECHO_T}$CPP" >&6
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
@@ -3343,18 +3764,18 @@ do
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat >conftest.$ac_ext <<_ACEOF
-#line 3346 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <assert.h>
                      Syntax error
 _ACEOF
-if { (eval echo "$as_me:3351: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:3357: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3377,17 +3798,17 @@ rm -f conftest.err conftest.$ac_ext
   # OK, works on sane cases.  Now check whether non-existent headers
   # can be detected and how.
   cat >conftest.$ac_ext <<_ACEOF
-#line 3380 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <ac_nonexistent.h>
 _ACEOF
-if { (eval echo "$as_me:3384: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:3390: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3415,7 +3836,7 @@ rm -f conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then
   :
 else
-  { { echo "$as_me:3418: error: C preprocessor \"$CPP\" fails sanity check" >&5
+  { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check" >&5
 echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check" >&2;}
    { (exit 1); exit 1; }; }
 fi
@@ -3426,17 +3847,18 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+
 if test "$cross_compiling" = "yes"
 then
   YAP_EXTRAS=
 else
-  echo "$as_me:3433: checking for sys/wait.h that is POSIX.1 compatible" >&5
+  echo "$as_me:$LINENO: checking for sys/wait.h that is POSIX.1 compatible" >&5
 echo $ECHO_N "checking for sys/wait.h that is POSIX.1 compatible... $ECHO_C" >&6
 if test "${ac_cv_header_sys_wait_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3439 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -3447,6 +3869,12 @@ else
 # define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
 #endif
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3458,16 +3886,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3461: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3464: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3467: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3470: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_header_sys_wait_h=yes
 else
@@ -3477,36 +3905,38 @@ ac_cv_header_sys_wait_h=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:3480: result: $ac_cv_header_sys_wait_h" >&5
+echo "$as_me:$LINENO: result: $ac_cv_header_sys_wait_h" >&5
 echo "${ECHO_T}$ac_cv_header_sys_wait_h" >&6
 if test $ac_cv_header_sys_wait_h = yes; then
 
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_SYS_WAIT_H 1
-EOF
+_ACEOF
 
 fi
 
-for ac_header in unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:3493: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
+
+echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
+if test "${ac_cv_header_stdc+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3499 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
-#include <$ac_header>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
 _ACEOF
-if { (eval echo "$as_me:3503: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:3509: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3517,36 +3947,298 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_cv_header_stdc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_cv_header_stdc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "memchr" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
 fi
-echo "$as_me:3528: result: `eval echo '${'$as_ac_Header'}'`" >&5
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "free" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then
+  :
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <ctype.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) (('a' <= (c) && (c) <= 'i') \
+                     || ('j' <= (c) && (c) <= 'r') \
+                     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+        || toupper (i) != TOUPPER (i))
+      exit(2);
+  exit (0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_header_stdc=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+echo "${ECHO_T}$ac_cv_header_stdc" >&6
+if test $ac_cv_header_stdc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STDC_HEADERS 1
+_ACEOF
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+
+
+
+
+
+
+
+
+
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+                  inttypes.h stdint.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_Header=no"
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
+
 done
 
-echo "$as_me:3538: checking for restartable system calls" >&5
+
+
+for ac_header in unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  egrep -v '^ *\+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+echo "$as_me:$LINENO: checking for restartable system calls" >&5
 echo $ECHO_N "checking for restartable system calls... $ECHO_C" >&6
 if test "${ac_cv_sys_restartable_syscalls+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:3544: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3549 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* Exit 0 (true) if wait returns something other than -1,
    i.e. the pid of the child, which means that wait was restarted
@@ -3592,43 +4284,55 @@ main ()
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:3595: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3598: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:3600: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3603: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sys_restartable_syscalls=yes
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
 ac_cv_sys_restartable_syscalls=no
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
-echo "$as_me:3615: result: $ac_cv_sys_restartable_syscalls" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sys_restartable_syscalls" >&5
 echo "${ECHO_T}$ac_cv_sys_restartable_syscalls" >&6
 if test $ac_cv_sys_restartable_syscalls = yes; then
 
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_RESTARTABLE_SYSCALLS 1
-EOF
+_ACEOF
 
 fi
 
 fi
 
+
+
+
+
+
+
+
+
+
+
+
+
 INSTALL_DLLS="#"
 SHLIB_LD="@#"
 DO_SECOND_LD="#"
 NEWSHOBJ="sobjs"
-YAPLIB="libYap.a"
 M4="m4"
 
 case $target_os in
@@ -3673,9 +4377,9 @@ case $target_os in
 	;;
       *hpux*)
 	#do not use the first memory quadrant
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define FORCE_SECOND_QUADRANT 1
-EOF
+_ACEOF
 
 	M4="/usr/bin/m4"
 	SHLIB_INTERFACE="load_shl.o"
@@ -3712,6 +4416,13 @@ EOF
 	SHLIB_LD="ld -n32 -shared -rdata_shared"
 	INSTALL_DLLS=""
 	;;
+      *darwin*)
+	SHLIB_CFLAGS="-fno-common"
+	SHLIB_SUFFIX=".so"
+        DO_SECOND_LD=""
+	SHLIB_LD="cc -bundle -flat_namespace -undefined suppress"
+	INSTALL_DLLS=""
+	;;
       *netbsd*|*freebsd*)
 	if echo __ELF__ | ${CC:-cc} -E - | grep -q __ELF__
         then
@@ -3754,6 +4465,14 @@ EOF
 	;;
 esac
 
+if test "$dynamic_loading" = "yes"
+then
+  YAP_EXTRAS="$SHLIB_CFLAGS $YAP_EXTRAS"
+  YAPLIB=libYap"$SHLIB_SUFFIX"
+else
+ YAPLIB="libYap.a"
+fi
+
 if test "$coroutining" = "yes"
   then
   YAP_EXTRAS="$YAP_EXTRAS -DCOROUTINING=1"
@@ -3805,13 +4524,13 @@ case "$tabling" in
   ;;
 esac
 
-echo "$as_me:3808: checking for ANSI C header files" >&5
+echo "$as_me:$LINENO: checking for ANSI C header files" >&5
 echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
 if test "${ac_cv_header_stdc+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3814 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -3819,13 +4538,13 @@ else
 #include <float.h>
 
 _ACEOF
-if { (eval echo "$as_me:3822: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:3828: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3847,7 +4566,7 @@ rm -f conftest.err conftest.$ac_ext
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
   cat >conftest.$ac_ext <<_ACEOF
-#line 3850 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <string.h>
 
@@ -3865,7 +4584,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
   cat >conftest.$ac_ext <<_ACEOF
-#line 3868 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 
@@ -3886,7 +4605,7 @@ if test $ac_cv_header_stdc = yes; then
   :
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3889 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #if ((' ' & 0x0FF) == 0x020)
@@ -3912,44 +4631,45 @@ main ()
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:3915: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3918: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:3920: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3923: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   :
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
 ac_cv_header_stdc=no
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 fi
-echo "$as_me:3936: result: $ac_cv_header_stdc" >&5
+echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
 echo "${ECHO_T}$ac_cv_header_stdc" >&6
 if test $ac_cv_header_stdc = yes; then
 
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define STDC_HEADERS 1
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:3946: checking for sys/wait.h that is POSIX.1 compatible" >&5
+echo "$as_me:$LINENO: checking for sys/wait.h that is POSIX.1 compatible" >&5
 echo $ECHO_N "checking for sys/wait.h that is POSIX.1 compatible... $ECHO_C" >&6
 if test "${ac_cv_header_sys_wait_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3952 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -3960,6 +4680,12 @@ else
 # define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
 #endif
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -3971,16 +4697,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3974: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3977: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3980: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3983: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_header_sys_wait_h=yes
 else
@@ -3990,36 +4716,79 @@ ac_cv_header_sys_wait_h=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:3993: result: $ac_cv_header_sys_wait_h" >&5
+echo "$as_me:$LINENO: result: $ac_cv_header_sys_wait_h" >&5
 echo "${ECHO_T}$ac_cv_header_sys_wait_h" >&6
 if test $ac_cv_header_sys_wait_h = yes; then
 
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_SYS_WAIT_H 1
-EOF
+_ACEOF
 
 fi
 
-for ac_header in arpa/inet.h ctype.h direct.h dirent.h errno.h fcntl.h
+
+
+
+
+
+for ac_header in arpa/inet.h ctype.h direct.h dirent.h dlfcn.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4006: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4012 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4016: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4022: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4030,44 +4799,230 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4041: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
+for ac_header in errno.h fcntl.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  egrep -v '^ *\+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+
+
+
+
 for ac_header in fenv.h fpu_control.h ieeefp.h io.h limits.h memory.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4054: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4060 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4064: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4070: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4078,44 +5033,112 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4089: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
+
 for ac_header in netdb.h netinet/in.h regex.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4102: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4108 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4112: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4118: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4126,44 +5149,114 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4137: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
+
+
+
 for ac_header in siginfo.h signal.h stdarg.h string.h stropts.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4150: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4156 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4160: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4166: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4174,44 +5267,111 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4185: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
 for ac_header in sys/conf.h sys/file.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4198: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4204 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4208: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4214: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4222,44 +5382,113 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4233: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
+
+
 for ac_header in sys/mman.h sys/param.h sys/resource.h sys/select.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4246: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4252 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4256: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4262: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4270,44 +5499,112 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4281: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
+
 for ac_header in sys/shm.h sys/socket.h sys/stat.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4294: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4300 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4304: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4310: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4318,44 +5615,112 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4329: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
+
 for ac_header in sys/time.h sys/times.h sys/types.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4342: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4348 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4352: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4358: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4366,44 +5731,111 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4377: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
 for ac_header in sys/ucontext.h sys/un.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4390: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4396 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4400: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4406: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4414,44 +5846,113 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4425: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
+
+
+
+
 for ac_header in time.h unistd.h winsock.h winsock2.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4438: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4444 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4448: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4454: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4462,22 +5963,49 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4473: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
 if test "$yap_cv_gmp" != "no"
@@ -4486,23 +6014,61 @@ then
 for ac_header in gmp.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4489: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4495 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4499: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4505: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4513,22 +6079,49 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4524: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
 fi
@@ -4538,23 +6131,61 @@ then
 for ac_header in readline/readline.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4541: checking for $ac_header" >&5
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4547 "configure"
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4551: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:4557: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4565,27 +6196,54 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
+  ac_header_preproc=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
+  ac_header_preproc=no
 fi
 rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=$ac_header_preproc"
 fi
-echo "$as_me:4576: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
 done
 
 fi
 
-echo "$as_me:4588: checking for $CC option to accept ANSI C" >&5
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
 echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
 if test "${ac_cv_prog_cc_stdc+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -4593,7 +6251,7 @@ else
   ac_cv_prog_cc_stdc=no
 ac_save_CC=$CC
 cat >conftest.$ac_ext <<_ACEOF
-#line 4596 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <stdarg.h>
 #include <stdio.h>
@@ -4623,6 +6281,12 @@ struct s2 {int (*f) (double a);};
 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
 int argc;
 char **argv;
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4642,16 +6306,16 @@ for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIO
 do
   CC="$ac_save_CC $ac_arg"
   rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4645: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4648: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4651: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4654: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_prog_cc_stdc=$ac_arg
 break
@@ -4668,15 +6332,15 @@ fi
 
 case "x$ac_cv_prog_cc_stdc" in
   x|xno)
-    echo "$as_me:4671: result: none needed" >&5
+    echo "$as_me:$LINENO: result: none needed" >&5
 echo "${ECHO_T}none needed" >&6 ;;
   *)
-    echo "$as_me:4674: result: $ac_cv_prog_cc_stdc" >&5
+    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
 echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
     CC="$CC $ac_cv_prog_cc_stdc" ;;
 esac
 
-echo "$as_me:4679: checking for inline" >&5
+echo "$as_me:$LINENO: checking for inline" >&5
 echo $ECHO_N "checking for inline... $ECHO_C" >&6
 if test "${ac_cv_c_inline+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -4684,7 +6348,7 @@ else
   ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
   cat >conftest.$ac_ext <<_ACEOF
-#line 4687 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #ifndef __cplusplus
 static $ac_kw int static_foo () {return 0; }
@@ -4693,16 +6357,16 @@ $ac_kw int foo () {return 0; }
 
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4696: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4699: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4702: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4705: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_c_inline=$ac_kw; break
 else
@@ -4713,32 +6377,38 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 done
 
 fi
-echo "$as_me:4716: result: $ac_cv_c_inline" >&5
+echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5
 echo "${ECHO_T}$ac_cv_c_inline" >&6
 case $ac_cv_c_inline in
   inline | yes) ;;
   no)
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define inline
-EOF
+_ACEOF
  ;;
-  *)  cat >>confdefs.h <<EOF
+  *)  cat >>confdefs.h <<_ACEOF
 #define inline $ac_cv_c_inline
-EOF
+_ACEOF
  ;;
 esac
 
-echo "$as_me:4731: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "$as_me:$LINENO: checking whether struct tm is in sys/time.h or time.h" >&5
 echo $ECHO_N "checking whether struct tm is in sys/time.h or time.h... $ECHO_C" >&6
 if test "${ac_cv_struct_tm+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4737 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4748,16 +6418,16 @@ struct tm *tp; tp->tm_sec;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4751: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4754: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4757: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4760: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_struct_tm=time.h
 else
@@ -4767,72 +6437,31 @@ ac_cv_struct_tm=sys/time.h
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:4770: result: $ac_cv_struct_tm" >&5
+echo "$as_me:$LINENO: result: $ac_cv_struct_tm" >&5
 echo "${ECHO_T}$ac_cv_struct_tm" >&6
 if test $ac_cv_struct_tm = sys/time.h; then
 
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define TM_IN_SYS_TIME 1
-EOF
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-                  inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4786: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 4792 "configure"
-#include "confdefs.h"
-$ac_includes_default
-#include <$ac_header>
 _ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4798: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:4801: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4804: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:4807: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  eval "$as_ac_Header=yes"
-else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-eval "$as_ac_Header=no"
-fi
-rm -f conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:4817: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<EOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-EOF
 
 fi
-done
 
-echo "$as_me:4827: checking for int *" >&5
+echo "$as_me:$LINENO: checking for int *" >&5
 echo $ECHO_N "checking for int *... $ECHO_C" >&6
 if test "${ac_cv_type_int_p+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4833 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -4845,16 +6474,16 @@ if (sizeof (int *))
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4848: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4851: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4854: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4857: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_int_p=yes
 else
@@ -4864,188 +6493,306 @@ ac_cv_type_int_p=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:4867: result: $ac_cv_type_int_p" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_int_p" >&5
 echo "${ECHO_T}$ac_cv_type_int_p" >&6
 
-echo "$as_me:4870: checking size of int *" >&5
+echo "$as_me:$LINENO: checking size of int *" >&5
 echo $ECHO_N "checking size of int *... $ECHO_C" >&6
 if test "${ac_cv_sizeof_int_p+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$ac_cv_type_int_p" = yes; then
+  # The cast to unsigned long works around a bug in the HP C Compiler
+  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+  # This bug is HP SR number 8606223364.
   if test "$cross_compiling" = yes; then
   # Depending upon the size, compute the lo and hi bounds.
 cat >conftest.$ac_ext <<_ACEOF
-#line 4879 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int *)) >= 0)]
+static int test_array [1 - 2 * !(((long) (sizeof (int *))) >= 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4891: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4894: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4897: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4900: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=0 ac_mid=0
   while :; do
     cat >conftest.$ac_ext <<_ACEOF
-#line 4905 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int *)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (int *))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4917: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4920: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4923: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4926: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`
+ac_lo=`expr $ac_mid + 1`
+                    if test $ac_lo -le $ac_mid; then
+                      ac_lo= ac_hi=
+                      break
+                    fi
+                    ac_mid=`expr 2 '*' $ac_mid + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=-1 ac_mid=-1
-  while :; do
-    cat >conftest.$ac_ext <<_ACEOF
-#line 4942 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int *)) >= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (int *))) < 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4954: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4957: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4960: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4963: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (int *))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`
+ac_hi=`expr '(' $ac_mid ')' - 1`
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+                       ac_mid=`expr 2 '*' $ac_mid`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_lo= ac_hi=
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
   cat >conftest.$ac_ext <<_ACEOF
-#line 4979 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int *)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (int *))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4991: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4994: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4997: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5000: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`
+ac_lo=`expr '(' $ac_mid ')' + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 done
-ac_cv_sizeof_int_p=$ac_lo
+case $ac_lo in
+?*) ac_cv_sizeof_int_p=$ac_lo;;
+'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (int *), 77" >&5
+echo "$as_me: error: cannot compute sizeof (int *), 77" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:5013: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5018 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+long longval () { return (long) (sizeof (int *)); }
+unsigned long ulongval () { return (long) (sizeof (int *)); }
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-FILE *f = fopen ("conftest.val", "w");
-if (!f)
-  exit (1);
-fprintf (f, "%d", (sizeof (int *)));
-fclose (f);
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    exit (1);
+  if (((long) (sizeof (int *))) < 0)
+    {
+      long i = longval ();
+      if (i != ((long) (sizeof (int *))))
+	exit (1);
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long i = ulongval ();
+      if (i != ((long) (sizeof (int *))))
+	exit (1);
+      fprintf (f, "%lu\n", i);
+    }
+  exit (ferror (f) || fclose (f) != 0);
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:5034: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:5037: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:5039: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5042: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sizeof_int_p=`cat conftest.val`
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: cannot compute sizeof (int *), 77" >&5
+echo "$as_me: error: cannot compute sizeof (int *), 77" >&2;}
+   { (exit 1); exit 1; }; }
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
@@ -5055,21 +6802,28 @@ else
   ac_cv_sizeof_int_p=0
 fi
 fi
-echo "$as_me:5058: result: $ac_cv_sizeof_int_p" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sizeof_int_p" >&5
 echo "${ECHO_T}$ac_cv_sizeof_int_p" >&6
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define SIZEOF_INT_P $ac_cv_sizeof_int_p
-EOF
+_ACEOF
 
-echo "$as_me:5064: checking for short int" >&5
+
+echo "$as_me:$LINENO: checking for short int" >&5
 echo $ECHO_N "checking for short int... $ECHO_C" >&6
 if test "${ac_cv_type_short_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5070 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -5082,16 +6836,16 @@ if (sizeof (short int))
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5085: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5088: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5091: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5094: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_short_int=yes
 else
@@ -5101,188 +6855,306 @@ ac_cv_type_short_int=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:5104: result: $ac_cv_type_short_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_short_int" >&5
 echo "${ECHO_T}$ac_cv_type_short_int" >&6
 
-echo "$as_me:5107: checking size of short int" >&5
+echo "$as_me:$LINENO: checking size of short int" >&5
 echo $ECHO_N "checking size of short int... $ECHO_C" >&6
 if test "${ac_cv_sizeof_short_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$ac_cv_type_short_int" = yes; then
+  # The cast to unsigned long works around a bug in the HP C Compiler
+  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+  # This bug is HP SR number 8606223364.
   if test "$cross_compiling" = yes; then
   # Depending upon the size, compute the lo and hi bounds.
 cat >conftest.$ac_ext <<_ACEOF
-#line 5116 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (short int)) >= 0)]
+static int test_array [1 - 2 * !(((long) (sizeof (short int))) >= 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5128: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5131: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5134: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5137: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=0 ac_mid=0
   while :; do
     cat >conftest.$ac_ext <<_ACEOF
-#line 5142 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (short int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (short int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5154: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5157: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5160: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5163: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`
+ac_lo=`expr $ac_mid + 1`
+                    if test $ac_lo -le $ac_mid; then
+                      ac_lo= ac_hi=
+                      break
+                    fi
+                    ac_mid=`expr 2 '*' $ac_mid + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=-1 ac_mid=-1
-  while :; do
-    cat >conftest.$ac_ext <<_ACEOF
-#line 5179 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (short int)) >= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (short int))) < 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5191: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5194: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5197: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5200: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (short int))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`
+ac_hi=`expr '(' $ac_mid ')' - 1`
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+                       ac_mid=`expr 2 '*' $ac_mid`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_lo= ac_hi=
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
   cat >conftest.$ac_ext <<_ACEOF
-#line 5216 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (short int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (short int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5228: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5231: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5234: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5237: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`
+ac_lo=`expr '(' $ac_mid ')' + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 done
-ac_cv_sizeof_short_int=$ac_lo
+case $ac_lo in
+?*) ac_cv_sizeof_short_int=$ac_lo;;
+'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (short int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (short int), 77" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:5250: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5255 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+long longval () { return (long) (sizeof (short int)); }
+unsigned long ulongval () { return (long) (sizeof (short int)); }
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-FILE *f = fopen ("conftest.val", "w");
-if (!f)
-  exit (1);
-fprintf (f, "%d", (sizeof (short int)));
-fclose (f);
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    exit (1);
+  if (((long) (sizeof (short int))) < 0)
+    {
+      long i = longval ();
+      if (i != ((long) (sizeof (short int))))
+	exit (1);
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long i = ulongval ();
+      if (i != ((long) (sizeof (short int))))
+	exit (1);
+      fprintf (f, "%lu\n", i);
+    }
+  exit (ferror (f) || fclose (f) != 0);
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:5271: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:5274: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:5276: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5279: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sizeof_short_int=`cat conftest.val`
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: cannot compute sizeof (short int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (short int), 77" >&2;}
+   { (exit 1); exit 1; }; }
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
@@ -5292,21 +7164,28 @@ else
   ac_cv_sizeof_short_int=0
 fi
 fi
-echo "$as_me:5295: result: $ac_cv_sizeof_short_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sizeof_short_int" >&5
 echo "${ECHO_T}$ac_cv_sizeof_short_int" >&6
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define SIZEOF_SHORT_INT $ac_cv_sizeof_short_int
-EOF
+_ACEOF
 
-echo "$as_me:5301: checking for int" >&5
+
+echo "$as_me:$LINENO: checking for int" >&5
 echo $ECHO_N "checking for int... $ECHO_C" >&6
 if test "${ac_cv_type_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5307 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -5319,16 +7198,16 @@ if (sizeof (int))
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5322: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5325: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5328: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5331: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_int=yes
 else
@@ -5338,188 +7217,306 @@ ac_cv_type_int=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:5341: result: $ac_cv_type_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_int" >&5
 echo "${ECHO_T}$ac_cv_type_int" >&6
 
-echo "$as_me:5344: checking size of int" >&5
+echo "$as_me:$LINENO: checking size of int" >&5
 echo $ECHO_N "checking size of int... $ECHO_C" >&6
 if test "${ac_cv_sizeof_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$ac_cv_type_int" = yes; then
+  # The cast to unsigned long works around a bug in the HP C Compiler
+  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+  # This bug is HP SR number 8606223364.
   if test "$cross_compiling" = yes; then
   # Depending upon the size, compute the lo and hi bounds.
 cat >conftest.$ac_ext <<_ACEOF
-#line 5353 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int)) >= 0)]
+static int test_array [1 - 2 * !(((long) (sizeof (int))) >= 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5365: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5368: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5371: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5374: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=0 ac_mid=0
   while :; do
     cat >conftest.$ac_ext <<_ACEOF
-#line 5379 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5391: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5394: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5397: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5400: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`
+ac_lo=`expr $ac_mid + 1`
+                    if test $ac_lo -le $ac_mid; then
+                      ac_lo= ac_hi=
+                      break
+                    fi
+                    ac_mid=`expr 2 '*' $ac_mid + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=-1 ac_mid=-1
-  while :; do
-    cat >conftest.$ac_ext <<_ACEOF
-#line 5416 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int)) >= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (int))) < 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5428: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5431: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5434: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5437: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (int))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`
+ac_hi=`expr '(' $ac_mid ')' - 1`
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+                       ac_mid=`expr 2 '*' $ac_mid`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_lo= ac_hi=
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
   cat >conftest.$ac_ext <<_ACEOF
-#line 5453 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5465: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5468: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5471: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5474: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`
+ac_lo=`expr '(' $ac_mid ')' + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 done
-ac_cv_sizeof_int=$ac_lo
+case $ac_lo in
+?*) ac_cv_sizeof_int=$ac_lo;;
+'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (int), 77" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:5487: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5492 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+long longval () { return (long) (sizeof (int)); }
+unsigned long ulongval () { return (long) (sizeof (int)); }
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-FILE *f = fopen ("conftest.val", "w");
-if (!f)
-  exit (1);
-fprintf (f, "%d", (sizeof (int)));
-fclose (f);
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    exit (1);
+  if (((long) (sizeof (int))) < 0)
+    {
+      long i = longval ();
+      if (i != ((long) (sizeof (int))))
+	exit (1);
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long i = ulongval ();
+      if (i != ((long) (sizeof (int))))
+	exit (1);
+      fprintf (f, "%lu\n", i);
+    }
+  exit (ferror (f) || fclose (f) != 0);
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:5508: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:5511: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:5513: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5516: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sizeof_int=`cat conftest.val`
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: cannot compute sizeof (int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (int), 77" >&2;}
+   { (exit 1); exit 1; }; }
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
@@ -5529,21 +7526,28 @@ else
   ac_cv_sizeof_int=0
 fi
 fi
-echo "$as_me:5532: result: $ac_cv_sizeof_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sizeof_int" >&5
 echo "${ECHO_T}$ac_cv_sizeof_int" >&6
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define SIZEOF_INT $ac_cv_sizeof_int
-EOF
+_ACEOF
 
-echo "$as_me:5538: checking for long int" >&5
+
+echo "$as_me:$LINENO: checking for long int" >&5
 echo $ECHO_N "checking for long int... $ECHO_C" >&6
 if test "${ac_cv_type_long_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5544 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -5556,16 +7560,16 @@ if (sizeof (long int))
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5559: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5562: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5565: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5568: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_long_int=yes
 else
@@ -5575,188 +7579,306 @@ ac_cv_type_long_int=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:5578: result: $ac_cv_type_long_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_long_int" >&5
 echo "${ECHO_T}$ac_cv_type_long_int" >&6
 
-echo "$as_me:5581: checking size of long int" >&5
+echo "$as_me:$LINENO: checking size of long int" >&5
 echo $ECHO_N "checking size of long int... $ECHO_C" >&6
 if test "${ac_cv_sizeof_long_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$ac_cv_type_long_int" = yes; then
+  # The cast to unsigned long works around a bug in the HP C Compiler
+  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+  # This bug is HP SR number 8606223364.
   if test "$cross_compiling" = yes; then
   # Depending upon the size, compute the lo and hi bounds.
 cat >conftest.$ac_ext <<_ACEOF
-#line 5590 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long int)) >= 0)]
+static int test_array [1 - 2 * !(((long) (sizeof (long int))) >= 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5602: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5605: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5608: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5611: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=0 ac_mid=0
   while :; do
     cat >conftest.$ac_ext <<_ACEOF
-#line 5616 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (long int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5628: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5631: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5634: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5637: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`
+ac_lo=`expr $ac_mid + 1`
+                    if test $ac_lo -le $ac_mid; then
+                      ac_lo= ac_hi=
+                      break
+                    fi
+                    ac_mid=`expr 2 '*' $ac_mid + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=-1 ac_mid=-1
-  while :; do
-    cat >conftest.$ac_ext <<_ACEOF
-#line 5653 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long int)) >= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (long int))) < 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5665: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5668: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5671: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5674: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (long int))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`
+ac_hi=`expr '(' $ac_mid ')' - 1`
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+                       ac_mid=`expr 2 '*' $ac_mid`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_lo= ac_hi=
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
   cat >conftest.$ac_ext <<_ACEOF
-#line 5690 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (long int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5702: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5705: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5708: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5711: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`
+ac_lo=`expr '(' $ac_mid ')' + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 done
-ac_cv_sizeof_long_int=$ac_lo
+case $ac_lo in
+?*) ac_cv_sizeof_long_int=$ac_lo;;
+'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (long int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (long int), 77" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:5724: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5729 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+long longval () { return (long) (sizeof (long int)); }
+unsigned long ulongval () { return (long) (sizeof (long int)); }
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-FILE *f = fopen ("conftest.val", "w");
-if (!f)
-  exit (1);
-fprintf (f, "%d", (sizeof (long int)));
-fclose (f);
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    exit (1);
+  if (((long) (sizeof (long int))) < 0)
+    {
+      long i = longval ();
+      if (i != ((long) (sizeof (long int))))
+	exit (1);
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long i = ulongval ();
+      if (i != ((long) (sizeof (long int))))
+	exit (1);
+      fprintf (f, "%lu\n", i);
+    }
+  exit (ferror (f) || fclose (f) != 0);
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:5745: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:5748: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:5750: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5753: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sizeof_long_int=`cat conftest.val`
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: cannot compute sizeof (long int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (long int), 77" >&2;}
+   { (exit 1); exit 1; }; }
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
@@ -5766,21 +7888,28 @@ else
   ac_cv_sizeof_long_int=0
 fi
 fi
-echo "$as_me:5769: result: $ac_cv_sizeof_long_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sizeof_long_int" >&5
 echo "${ECHO_T}$ac_cv_sizeof_long_int" >&6
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define SIZEOF_LONG_INT $ac_cv_sizeof_long_int
-EOF
+_ACEOF
 
-echo "$as_me:5775: checking for long long int" >&5
+
+echo "$as_me:$LINENO: checking for long long int" >&5
 echo $ECHO_N "checking for long long int... $ECHO_C" >&6
 if test "${ac_cv_type_long_long_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5781 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -5793,16 +7922,16 @@ if (sizeof (long long int))
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5796: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5799: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5802: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5805: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_long_long_int=yes
 else
@@ -5812,188 +7941,306 @@ ac_cv_type_long_long_int=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:5815: result: $ac_cv_type_long_long_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_long_long_int" >&5
 echo "${ECHO_T}$ac_cv_type_long_long_int" >&6
 
-echo "$as_me:5818: checking size of long long int" >&5
+echo "$as_me:$LINENO: checking size of long long int" >&5
 echo $ECHO_N "checking size of long long int... $ECHO_C" >&6
 if test "${ac_cv_sizeof_long_long_int+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$ac_cv_type_long_long_int" = yes; then
+  # The cast to unsigned long works around a bug in the HP C Compiler
+  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+  # This bug is HP SR number 8606223364.
   if test "$cross_compiling" = yes; then
   # Depending upon the size, compute the lo and hi bounds.
 cat >conftest.$ac_ext <<_ACEOF
-#line 5827 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long long int)) >= 0)]
+static int test_array [1 - 2 * !(((long) (sizeof (long long int))) >= 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5839: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5842: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5845: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5848: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=0 ac_mid=0
   while :; do
     cat >conftest.$ac_ext <<_ACEOF
-#line 5853 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long long int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (long long int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5865: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5868: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5871: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5874: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`
+ac_lo=`expr $ac_mid + 1`
+                    if test $ac_lo -le $ac_mid; then
+                      ac_lo= ac_hi=
+                      break
+                    fi
+                    ac_mid=`expr 2 '*' $ac_mid + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=-1 ac_mid=-1
-  while :; do
-    cat >conftest.$ac_ext <<_ACEOF
-#line 5890 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long long int)) >= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (long long int))) < 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5902: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5905: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5908: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5911: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (long long int))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`
+ac_hi=`expr '(' $ac_mid ')' - 1`
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+                       ac_mid=`expr 2 '*' $ac_mid`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_lo= ac_hi=
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
   cat >conftest.$ac_ext <<_ACEOF
-#line 5927 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (long long int)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (long long int))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:5939: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:5942: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:5945: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5948: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`
+ac_lo=`expr '(' $ac_mid ')' + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 done
-ac_cv_sizeof_long_long_int=$ac_lo
+case $ac_lo in
+?*) ac_cv_sizeof_long_long_int=$ac_lo;;
+'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (long long int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (long long int), 77" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:5961: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 5966 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+long longval () { return (long) (sizeof (long long int)); }
+unsigned long ulongval () { return (long) (sizeof (long long int)); }
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-FILE *f = fopen ("conftest.val", "w");
-if (!f)
-  exit (1);
-fprintf (f, "%d", (sizeof (long long int)));
-fclose (f);
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    exit (1);
+  if (((long) (sizeof (long long int))) < 0)
+    {
+      long i = longval ();
+      if (i != ((long) (sizeof (long long int))))
+	exit (1);
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long i = ulongval ();
+      if (i != ((long) (sizeof (long long int))))
+	exit (1);
+      fprintf (f, "%lu\n", i);
+    }
+  exit (ferror (f) || fclose (f) != 0);
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:5982: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:5985: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:5987: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:5990: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sizeof_long_long_int=`cat conftest.val`
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: cannot compute sizeof (long long int), 77" >&5
+echo "$as_me: error: cannot compute sizeof (long long int), 77" >&2;}
+   { (exit 1); exit 1; }; }
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
@@ -6003,21 +8250,28 @@ else
   ac_cv_sizeof_long_long_int=0
 fi
 fi
-echo "$as_me:6006: result: $ac_cv_sizeof_long_long_int" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sizeof_long_long_int" >&5
 echo "${ECHO_T}$ac_cv_sizeof_long_long_int" >&6
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define SIZEOF_LONG_LONG_INT $ac_cv_sizeof_long_long_int
-EOF
+_ACEOF
 
-echo "$as_me:6012: checking for float" >&5
+
+echo "$as_me:$LINENO: checking for float" >&5
 echo $ECHO_N "checking for float... $ECHO_C" >&6
 if test "${ac_cv_type_float+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6018 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -6030,16 +8284,16 @@ if (sizeof (float))
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6033: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6036: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6039: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6042: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_float=yes
 else
@@ -6049,188 +8303,306 @@ ac_cv_type_float=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:6052: result: $ac_cv_type_float" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_float" >&5
 echo "${ECHO_T}$ac_cv_type_float" >&6
 
-echo "$as_me:6055: checking size of float" >&5
+echo "$as_me:$LINENO: checking size of float" >&5
 echo $ECHO_N "checking size of float... $ECHO_C" >&6
 if test "${ac_cv_sizeof_float+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$ac_cv_type_float" = yes; then
+  # The cast to unsigned long works around a bug in the HP C Compiler
+  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+  # This bug is HP SR number 8606223364.
   if test "$cross_compiling" = yes; then
   # Depending upon the size, compute the lo and hi bounds.
 cat >conftest.$ac_ext <<_ACEOF
-#line 6064 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (float)) >= 0)]
+static int test_array [1 - 2 * !(((long) (sizeof (float))) >= 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6076: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6079: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6082: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6085: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=0 ac_mid=0
   while :; do
     cat >conftest.$ac_ext <<_ACEOF
-#line 6090 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (float)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (float))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6102: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6105: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6108: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6111: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`
+ac_lo=`expr $ac_mid + 1`
+                    if test $ac_lo -le $ac_mid; then
+                      ac_lo= ac_hi=
+                      break
+                    fi
+                    ac_mid=`expr 2 '*' $ac_mid + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=-1 ac_mid=-1
-  while :; do
-    cat >conftest.$ac_ext <<_ACEOF
-#line 6127 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (float)) >= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (float))) < 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6139: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6142: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6145: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6148: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (float))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`
+ac_hi=`expr '(' $ac_mid ')' - 1`
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+                       ac_mid=`expr 2 '*' $ac_mid`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_lo= ac_hi=
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
   cat >conftest.$ac_ext <<_ACEOF
-#line 6164 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (float)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (float))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6176: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6179: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6182: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6185: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`
+ac_lo=`expr '(' $ac_mid ')' + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 done
-ac_cv_sizeof_float=$ac_lo
+case $ac_lo in
+?*) ac_cv_sizeof_float=$ac_lo;;
+'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (float), 77" >&5
+echo "$as_me: error: cannot compute sizeof (float), 77" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:6198: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6203 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+long longval () { return (long) (sizeof (float)); }
+unsigned long ulongval () { return (long) (sizeof (float)); }
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-FILE *f = fopen ("conftest.val", "w");
-if (!f)
-  exit (1);
-fprintf (f, "%d", (sizeof (float)));
-fclose (f);
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    exit (1);
+  if (((long) (sizeof (float))) < 0)
+    {
+      long i = longval ();
+      if (i != ((long) (sizeof (float))))
+	exit (1);
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long i = ulongval ();
+      if (i != ((long) (sizeof (float))))
+	exit (1);
+      fprintf (f, "%lu\n", i);
+    }
+  exit (ferror (f) || fclose (f) != 0);
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:6219: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6222: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:6224: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6227: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sizeof_float=`cat conftest.val`
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: cannot compute sizeof (float), 77" >&5
+echo "$as_me: error: cannot compute sizeof (float), 77" >&2;}
+   { (exit 1); exit 1; }; }
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
@@ -6240,21 +8612,28 @@ else
   ac_cv_sizeof_float=0
 fi
 fi
-echo "$as_me:6243: result: $ac_cv_sizeof_float" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sizeof_float" >&5
 echo "${ECHO_T}$ac_cv_sizeof_float" >&6
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define SIZEOF_FLOAT $ac_cv_sizeof_float
-EOF
+_ACEOF
 
-echo "$as_me:6249: checking for double" >&5
+
+echo "$as_me:$LINENO: checking for double" >&5
 echo $ECHO_N "checking for double... $ECHO_C" >&6
 if test "${ac_cv_type_double+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6255 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -6267,16 +8646,16 @@ if (sizeof (double))
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6270: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6273: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6276: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6279: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_double=yes
 else
@@ -6286,188 +8665,306 @@ ac_cv_type_double=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:6289: result: $ac_cv_type_double" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_double" >&5
 echo "${ECHO_T}$ac_cv_type_double" >&6
 
-echo "$as_me:6292: checking size of double" >&5
+echo "$as_me:$LINENO: checking size of double" >&5
 echo $ECHO_N "checking size of double... $ECHO_C" >&6
 if test "${ac_cv_sizeof_double+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if test "$ac_cv_type_double" = yes; then
+  # The cast to unsigned long works around a bug in the HP C Compiler
+  # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+  # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+  # This bug is HP SR number 8606223364.
   if test "$cross_compiling" = yes; then
   # Depending upon the size, compute the lo and hi bounds.
 cat >conftest.$ac_ext <<_ACEOF
-#line 6301 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (double)) >= 0)]
+static int test_array [1 - 2 * !(((long) (sizeof (double))) >= 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6313: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6316: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6319: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6322: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=0 ac_mid=0
   while :; do
     cat >conftest.$ac_ext <<_ACEOF
-#line 6327 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (double)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (double))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6339: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6342: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6345: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6348: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`
+ac_lo=`expr $ac_mid + 1`
+                    if test $ac_lo -le $ac_mid; then
+                      ac_lo= ac_hi=
+                      break
+                    fi
+                    ac_mid=`expr 2 '*' $ac_mid + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=-1 ac_mid=-1
-  while :; do
-    cat >conftest.$ac_ext <<_ACEOF
-#line 6364 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (double)) >= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (double))) < 0)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6376: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6379: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6382: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6385: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (double))) >= $ac_mid)];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_lo=$ac_mid; break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`
+ac_hi=`expr '(' $ac_mid ')' - 1`
+                       if test $ac_mid -le $ac_hi; then
+                         ac_lo= ac_hi=
+                         break
+                       fi
+                       ac_mid=`expr 2 '*' $ac_mid`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_lo= ac_hi=
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo`
   cat >conftest.$ac_ext <<_ACEOF
-#line 6401 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-int _array_ [1 - 2 * !((sizeof (double)) <= $ac_mid)]
+static int test_array [1 - 2 * !(((long) (sizeof (double))) <= $ac_mid)];
+test_array [0] = 0
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6413: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6416: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6419: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6422: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_hi=$ac_mid
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-ac_lo=`expr $ac_mid + 1`
+ac_lo=`expr '(' $ac_mid ')' + 1`
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 done
-ac_cv_sizeof_double=$ac_lo
+case $ac_lo in
+?*) ac_cv_sizeof_double=$ac_lo;;
+'') { { echo "$as_me:$LINENO: error: cannot compute sizeof (double), 77" >&5
+echo "$as_me: error: cannot compute sizeof (double), 77" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
 else
   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:6435: error: cannot run test program while cross compiling" >&5
+  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling" >&5
 echo "$as_me: error: cannot run test program while cross compiling" >&2;}
    { (exit 1); exit 1; }; }
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6440 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 $ac_includes_default
+long longval () { return (long) (sizeof (double)); }
+unsigned long ulongval () { return (long) (sizeof (double)); }
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
-FILE *f = fopen ("conftest.val", "w");
-if (!f)
-  exit (1);
-fprintf (f, "%d", (sizeof (double)));
-fclose (f);
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    exit (1);
+  if (((long) (sizeof (double))) < 0)
+    {
+      long i = longval ();
+      if (i != ((long) (sizeof (double))))
+	exit (1);
+      fprintf (f, "%ld\n", i);
+    }
+  else
+    {
+      unsigned long i = ulongval ();
+      if (i != ((long) (sizeof (double))))
+	exit (1);
+      fprintf (f, "%lu\n", i);
+    }
+  exit (ferror (f) || fclose (f) != 0);
+
   ;
   return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:6456: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6459: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:6461: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6464: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_sizeof_double=`cat conftest.val`
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
+{ { echo "$as_me:$LINENO: error: cannot compute sizeof (double), 77" >&5
+echo "$as_me: error: cannot compute sizeof (double), 77" >&2;}
+   { (exit 1); exit 1; }; }
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
@@ -6477,13 +8974,15 @@ else
   ac_cv_sizeof_double=0
 fi
 fi
-echo "$as_me:6480: result: $ac_cv_sizeof_double" >&5
+echo "$as_me:$LINENO: result: $ac_cv_sizeof_double" >&5
 echo "${ECHO_T}$ac_cv_sizeof_double" >&6
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define SIZEOF_DOUBLE $ac_cv_sizeof_double
-EOF
+_ACEOF
 
-echo "$as_me:6486: checking for type of malloc" >&5
+
+
+echo "$as_me:$LINENO: checking for type of malloc" >&5
 echo $ECHO_N "checking for type of malloc... $ECHO_C" >&6
 if test "${yap_cv_malloct+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -6493,7 +8992,7 @@ if test "$cross_compiling" = yes; then
   yap_cv_malloct=void
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6496 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 	char *malloc(size_t);
@@ -6504,41 +9003,43 @@ else
 
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:6507: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6510: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:6512: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6515: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   yap_cv_malloct=char
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
 yap_cv_malloct=void
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
-echo "$as_me:6528: result: $yap_cv_malloct *" >&5
+echo "$as_me:$LINENO: result: $yap_cv_malloct *" >&5
 echo "${ECHO_T}$yap_cv_malloct *" >&6
 if test $yap_cv_malloct = void
-then cat >>confdefs.h <<\EOF
+then cat >>confdefs.h <<\_ACEOF
 #define MALLOC_T void *
-EOF
+_ACEOF
 
-else cat >>confdefs.h <<\EOF
+else cat >>confdefs.h <<\_ACEOF
 #define MALLOC_T char *
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:6541: checking for gcc inline" >&5
+
+echo "$as_me:$LINENO: checking for gcc inline" >&5
 echo $ECHO_N "checking for gcc inline... $ECHO_C" >&6
 if test "${yap_cv_gcc+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -6548,7 +9049,7 @@ if test "$cross_compiling" = yes; then
   yap_cv_gcc=yes
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6551 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #undef inline
 	inline int f(int x) {return x+1;}
@@ -6556,45 +9057,49 @@ else
 
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:6559: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6562: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:6564: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6567: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   yap_cv_gcc=yes
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
 yap_cv_gcc=no
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
-echo "$as_me:6580: result: $yap_cv_gcc" >&5
+echo "$as_me:$LINENO: result: $yap_cv_gcc" >&5
 echo "${ECHO_T}$yap_cv_gcc" >&6
 if test $yap_cv_gcc = yes
 then
 M4GENHDRS=m4/gcc_genhdrs.m4
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_GCC 1
-EOF
+_ACEOF
 
 else
 M4GENHDRS=m4/cc_genhdrs.m4
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_GCC 0
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:6597: checking for gcc threaded code" >&5
+
+
+
+echo "$as_me:$LINENO: checking for gcc threaded code" >&5
 echo $ECHO_N "checking for gcc threaded code... $ECHO_C" >&6
 if test "${yap_cv_threaded_code+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -6604,7 +9109,7 @@ if test "$cross_compiling" = yes; then
   yap_cv_threaded_code=yes
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6607 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 int main() {
 	void *t = &&l2;
@@ -6614,45 +9119,49 @@ int main() {
 
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:6617: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6620: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:6622: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6625: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   yap_cv_threaded_code=yes
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
 yap_cv_threaded_code=no
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
-echo "$as_me:6638: result: $yap_cv_threaded_code" >&5
+echo "$as_me:$LINENO: result: $yap_cv_threaded_code" >&5
 echo "${ECHO_T}$yap_cv_threaded_code" >&6
 if test $yap_cv_threaded_code = yes && test $yap_cv_gcc = yes
 then
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define USE_THREADED_CODE 1
-EOF
+_ACEOF
 
 	M4GENABSMI=gen_gcc.m4
 else
-	cat >>confdefs.h <<\EOF
+	cat >>confdefs.h <<\_ACEOF
 #define USE_THREADED_CODE 0
-EOF
+_ACEOF
 
 	M4GENABSMI=gen_ansi.m4
 fi
 
-echo "$as_me:6655: checking for IEEE floats" >&5
+
+
+
+echo "$as_me:$LINENO: checking for IEEE floats" >&5
 echo $ECHO_N "checking for IEEE floats... $ECHO_C" >&6
 if test "${yap_cv_ffieee+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -6662,7 +9171,7 @@ if test "$cross_compiling" = yes; then
   yap_cv_ffieee=yes
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6665 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 int main() {
 	  union { float f; int i} a;
@@ -6673,53 +9182,60 @@ int main() {
 
 _ACEOF
 rm -f conftest$ac_exeext
-if { (eval echo "$as_me:6676: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6679: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:6681: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6684: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   yap_cv_ffieee=yes
 else
   echo "$as_me: program exited with status $ac_status" >&5
 echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
+( exit $ac_status )
 yap_cv_ffieee=no
 fi
 rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 
-echo "$as_me:6697: result: $yap_cv_ffieee" >&5
+echo "$as_me:$LINENO: result: $yap_cv_ffieee" >&5
 echo "${ECHO_T}$yap_cv_ffieee" >&6
 if test $yap_cv_ffieee = yes
 then
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define FFIEEE 1
-EOF
+_ACEOF
 
 else
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define FFIEEE 0
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:6712: checking for sigsetjmp" >&5
+echo "$as_me:$LINENO: checking for sigsetjmp" >&5
 echo $ECHO_N "checking for sigsetjmp... $ECHO_C" >&6
 if test "${yap_sigsetjmp+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 6719 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <setjmp.h>
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -6732,16 +9248,16 @@ sigjmp_buf         RestartEnv;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6735: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6738: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6741: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6744: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   yap_sigsetjmp=yes
 else
@@ -6752,33 +9268,39 @@ fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 
-echo "$as_me:6755: result: $yap_sigsetjmp" >&5
+echo "$as_me:$LINENO: result: $yap_sigsetjmp" >&5
 echo "${ECHO_T}$yap_sigsetjmp" >&6
 if test $yap_sigsetjmp = yes
 then
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_SIGSETJMP 1
-EOF
+_ACEOF
 
 else
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_SIGSETJMP 0
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:6770: checking for sigsegv" >&5
+echo "$as_me:$LINENO: checking for sigsegv" >&5
 echo $ECHO_N "checking for sigsegv... $ECHO_C" >&6
 if test "${yap_sigsegv+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 6777 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <signal.h>
 	#include <stdio.h>
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -6789,16 +9311,16 @@ printf("Signal value is %d\n", SIGSEGV);
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6792: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6795: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6798: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6801: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   yap_sigsegv=yes
 else
@@ -6809,28 +9331,34 @@ fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 
-echo "$as_me:6812: result: $yap_sigsegv" >&5
+echo "$as_me:$LINENO: result: $yap_sigsegv" >&5
 echo "${ECHO_T}$yap_sigsegv" >&6
 if test $yap_sigsegv = yes
 then
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_SIGSEGV 1
-EOF
+_ACEOF
 
 else
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_SIGSEGV 0
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:6827: checking union wait" >&5
+echo "$as_me:$LINENO: checking union wait" >&5
 echo $ECHO_N "checking union wait... $ECHO_C" >&6
 cat >conftest.$ac_ext <<_ACEOF
-#line 6830 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -6845,16 +9373,16 @@ WIFEXITED(x);		/* Generates compiler error if WIFEXITED
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:6848: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6851: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:6854: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6857: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   union_wait_ok=yes
 else
@@ -6863,21 +9391,27 @@ cat conftest.$ac_ext >&5
 union_wait_ok=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
-echo "$as_me:6866: result: $union_wait_ok" >&5
+echo "$as_me:$LINENO: result: $union_wait_ok" >&5
 echo "${ECHO_T}$union_wait_ok" >&6
 if test $union_wait_ok = no; then
-    cat >>confdefs.h <<\EOF
+    cat >>confdefs.h <<\_ACEOF
 #define NO_UNION_WAIT 1
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:6875: checking environ" >&5
+echo "$as_me:$LINENO: checking environ" >&5
 echo $ECHO_N "checking environ... $ECHO_C" >&6
 cat >conftest.$ac_ext <<_ACEOF
-#line 6878 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -6889,16 +9423,16 @@ extern char **environ;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:6892: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:6895: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:6898: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6901: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   environ_ok=yes
 else
@@ -6907,22 +9441,22 @@ cat conftest.$ac_ext >&5
 environ_ok=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
-echo "$as_me:6910: result: $environ_ok" >&5
+echo "$as_me:$LINENO: result: $environ_ok" >&5
 echo "${ECHO_T}$environ_ok" >&6
 if test $environ_ok = yes; then
-    cat >>confdefs.h <<\EOF
+    cat >>confdefs.h <<\_ACEOF
 #define HAVE_ENVIRON 1
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:6919: checking return type of signal handlers" >&5
+echo "$as_me:$LINENO: checking return type of signal handlers" >&5
 echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6
 if test "${ac_cv_type_signal+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6925 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -6935,6 +9469,12 @@ extern "C" void (*signal (int, void (*)(int)))(int);
 void (*signal ()) ();
 #endif
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -6944,16 +9484,16 @@ int i;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:6947: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:6950: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:6953: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:6956: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_signal=void
 else
@@ -6963,23 +9503,30 @@ ac_cv_type_signal=int
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:6966: result: $ac_cv_type_signal" >&5
+echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5
 echo "${ECHO_T}$ac_cv_type_signal" >&6
 
-cat >>confdefs.h <<EOF
+cat >>confdefs.h <<_ACEOF
 #define RETSIGTYPE $ac_cv_type_signal
-EOF
+_ACEOF
+
+
+
+
+
+
+
 
 for ac_func in acosh alarm asinh atanh chdir dup2
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:6976: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 6982 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -6993,6 +9540,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7010,16 +9563,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7013: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7016: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7019: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7022: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7029,26 +9582,30 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7032: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
 for ac_func in fetestexcept finite getcwd getenv
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7045: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7051 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7062,6 +9619,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7079,16 +9642,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7082: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7085: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7088: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7091: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7098,26 +9661,29 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7101: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
 for ac_func in gethostbyname gethostid gethostname
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7114: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7120 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7131,6 +9697,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7148,16 +9720,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7151: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7154: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7157: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7160: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7167,26 +9739,31 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7170: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
 for ac_func in gethrtime getpwnam getrusage gettimeofday getwd
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7183: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7189 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7200,6 +9777,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7217,16 +9800,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7220: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7223: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7226: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7229: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7236,26 +9819,33 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7239: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
+
+
 for ac_func in isatty isnan kill labs link localtime lstat
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7252: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7258 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7269,6 +9859,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7286,16 +9882,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7289: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7292: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7295: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7298: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7305,26 +9901,32 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7308: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
+
 for ac_func in memcpy memmove mkstemp mktemp mmap opendir
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7321: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7327 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7338,6 +9940,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7355,16 +9963,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7358: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7361: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7364: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7367: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7374,26 +9982,31 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7377: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
 for ac_func in popen putenv rand random regexec
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7390: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7396 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7407,6 +10020,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7424,16 +10043,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7427: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7430: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7433: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7436: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7443,26 +10062,31 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7446: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
 for ac_func in rename rint rl_set_prompt sbrk select
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7459: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7465 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7476,6 +10100,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7493,16 +10123,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7496: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7499: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7502: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7505: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7512,26 +10142,32 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7515: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
+
 for ac_func in setbuf setlinebuf shmat sigaction siggetmask siginterrupt
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7528: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7534 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7545,6 +10181,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7562,16 +10204,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7565: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7568: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7571: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7574: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7581,26 +10223,32 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7584: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
+
 for ac_func in signal sigprocmask sleep snprintf socket stat
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7597: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7603 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7614,6 +10262,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7631,16 +10285,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7634: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7637: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7640: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7643: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7650,26 +10304,32 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7653: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
+
 for ac_func in strchr strerror strncat strncpy strtod system
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7666: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7672 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7683,6 +10343,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7700,16 +10366,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7703: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7706: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7709: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7712: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7719,26 +10385,32 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7722: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
+
+
+
+
+
+
 for ac_func in time times tmpnam usleep vsnprintf waitpid
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:7735: checking for $ac_func" >&5
+echo "$as_me:$LINENO: checking for $ac_func" >&5
 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7741 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -7752,6 +10424,12 @@ extern "C"
 char $ac_func ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7769,16 +10447,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7772: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7775: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7778: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7781: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -7788,23 +10466,24 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7791: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
 if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<EOF
+  cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-EOF
+_ACEOF
 
 fi
 done
 
-echo "$as_me:7801: checking for regexec" >&5
+
+echo "$as_me:$LINENO: checking for regexec" >&5
 echo $ECHO_N "checking for regexec... $ECHO_C" >&6
 if test "${ac_cv_func_regexec+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 7807 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char regexec (); below.  */
@@ -7818,6 +10497,12 @@ extern "C"
 char regexec ();
 char (*f) ();
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7835,16 +10520,16 @@ f = regexec;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7838: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7841: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7844: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7847: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_func_regexec=yes
 else
@@ -7854,7 +10539,7 @@ ac_cv_func_regexec=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:7857: result: $ac_cv_func_regexec" >&5
+echo "$as_me:$LINENO: result: $ac_cv_func_regexec" >&5
 echo "${ECHO_T}$ac_cv_func_regexec" >&6
 if test $ac_cv_func_regexec = yes; then
   NO_BUILTIN_REGEXP="#"
@@ -7862,20 +10547,27 @@ else
   NO_BUILTIN_REGEXP=""
 fi
 
-echo "$as_me:7865: checking for mpz_xor" >&5
+
+echo "$as_me:$LINENO: checking for mpz_xor" >&5
 echo $ECHO_N "checking for mpz_xor... $ECHO_C" >&6
 if test "${yap_mpz_xor+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 7872 "configure"
+#line $LINENO "configure"
 #include "confdefs.h"
 #include <gmp.h>
 	void check(mpz_t rop,mpz_t op1,mpz_t op2) {
 	  mpz_xor(rop,op1,op2);
 	}
 
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
 int
 main ()
 {
@@ -7885,16 +10577,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:7888: \"$ac_link\"") >&5
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7891: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:7894: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7897: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   yap_mpz_xor=yes
 else
@@ -7905,22 +10597,22 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
 
-echo "$as_me:7908: result: $yap_mpz_xor" >&5
+echo "$as_me:$LINENO: result: $yap_mpz_xor" >&5
 echo "${ECHO_T}$yap_mpz_xor" >&6
 if test $yap_mpz_xor = yes
 then
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_MPZ_XOR 1
-EOF
+_ACEOF
 
 else
-cat >>confdefs.h <<\EOF
+cat >>confdefs.h <<\_ACEOF
 #define HAVE_MPZ_XOR 0
-EOF
+_ACEOF
 
 fi
 
-echo "$as_me:7923: checking if fflush(NULL) clobbers input pipes" >&5
+echo "$as_me:$LINENO: checking if fflush(NULL) clobbers input pipes" >&5
 echo $ECHO_N "checking if fflush(NULL) clobbers input pipes... $ECHO_C" >&6
 if test "${yap_cv_broken_fflush_null+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -7947,49 +10639,49 @@ else
       }
   }
 EOF
-  { (eval echo "$as_me:7950: \"$ac_link\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:7953: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }
   if test "$?" = 0
   then
     cat conftest.$ac_ext | ./conftest$ac_exeext > conftest.out
     { ac_try='cmp conftest.$ac_ext conftest.out'
-  { (eval echo "$as_me:7959: \"$ac_try\"") >&5
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:7962: \$? = $ac_status" >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }
     if test "$?" = 0
     then
-      echo "$as_me:7966: result: no" >&5
+      echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
       yap_cv_broken_fflush_null=no
     else
-      echo "$as_me:7970: result: yes" >&5
+      echo "$as_me:$LINENO: result: yes" >&5
 echo "${ECHO_T}yes" >&6
       yap_cv_broken_fflush_null=yes
     fi
   else
-        echo "$as_me:7975: result: failed" >&5
+        echo "$as_me:$LINENO: result: failed" >&5
 echo "${ECHO_T}failed" >&6
     yap_cv_broken_fflush_null=failed
   fi
   rm -f conftest.$ac_ext conftest.$ac_objext conftest$ac_exeext conftest.out
 fi
-echo "$as_me:7981: result: $yap_cv_broken_fflush_null" >&5
+echo "$as_me:$LINENO: result: $yap_cv_broken_fflush_null" >&5
 echo "${ECHO_T}$yap_cv_broken_fflush_null" >&6
 if test "$yap_cv_broken_fflush_null" = no
 then
-  cat >>confdefs.h <<\EOF
+  cat >>confdefs.h <<\_ACEOF
 #define BROKEN_FFLUSH_NULL 0
-EOF
+_ACEOF
 
 else
-      cat >>confdefs.h <<\EOF
+      cat >>confdefs.h <<\_ACEOF
 #define BROKEN_FFLUSH_NULL 1
-EOF
+_ACEOF
 
 fi
 
@@ -8076,25 +10768,29 @@ fi
 
 DEFS=-DHAVE_CONFIG_H
 
+
 : ${CONFIG_STATUS=./config.status}
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ echo "$as_me:8082: creating $CONFIG_STATUS" >&5
+{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
 echo "$as_me: creating $CONFIG_STATUS" >&6;}
 cat >$CONFIG_STATUS <<_ACEOF
 #! $SHELL
-# Generated automatically by configure.
+# Generated by $as_me.
 # Run this file to recreate the current configuration.
 # Compiler output produced by configure, useful for debugging
 # configure, is in config.log if it exists.
 
 debug=false
 SHELL=\${CONFIG_SHELL-$SHELL}
-ac_cs_invocation="\$0 \$@"
-
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF
+
+## --------------------- ##
+## M4sh Initialization.  ##
+## --------------------- ##
+
 # Be Bourne compatible
 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   emulate sh
@@ -8103,8 +10799,167 @@ elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
 
+# NLS nuisances.
+# Support unset when possible.
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
+  as_unset=unset
+else
+  as_unset=false
+fi
+
+(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
+    { $as_unset LANG || test "${LANG+set}" != set; } ||
+      { LANG=C; export LANG; }
+(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
+    { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
+      { LC_ALL=C; export LC_ALL; }
+(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
+    { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
+      { LC_TIME=C; export LC_TIME; }
+(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
+    { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
+      { LC_CTYPE=C; export LC_CTYPE; }
+(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
+    { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
+      { LANGUAGE=C; export LANGUAGE; }
+(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
+    { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
+      { LC_COLLATE=C; export LC_COLLATE; }
+(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
+    { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
+      { LC_NUMERIC=C; export LC_NUMERIC; }
+(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
+    { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
+      { LC_MESSAGES=C; export LC_MESSAGES; }
+
+
 # Name of the executable.
-as_me=`echo "$0" |sed 's,.*[\\/],,'`
+as_me=`(basename "$0") 2>/dev/null ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)$' \| \
+	 .     : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
+  	  /^X\/\(\/\).*/{ s//\1/; q; }
+  	  s/.*/./; q'`
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conftest.sh
+  echo  "exit 0"   >>conftest.sh
+  chmod +x conftest.sh
+  if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conftest.sh
+fi
+
+
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
+  # Find who we are.  Look in the path if we contain no path at all
+  # relative or not.
+  case $0 in
+    *[\\/]* ) as_myself=$0 ;;
+    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+       ;;
+  esac
+  # We did not find ourselves, most probably we were run as `sh COMMAND'
+  # in which case we are not to be found in the path.
+  if test "x$as_myself" = x; then
+    as_myself=$0
+  fi
+  if test ! -f "$as_myself"; then
+    { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
+echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
+   { (exit 1); exit 1; }; }
+  fi
+  case $CONFIG_SHELL in
+  '')
+    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for as_base in sh bash ksh sh5; do
+	 case $as_dir in
+	 /*)
+	   if ("$as_dir/$as_base" -c '
+  as_lineno_1=$LINENO
+  as_lineno_2=$LINENO
+  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+  test "x$as_lineno_1" != "x$as_lineno_2" &&
+  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
+	     CONFIG_SHELL=$as_dir/$as_base
+	     export CONFIG_SHELL
+	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+	   fi;;
+	 esac
+       done
+done
+;;
+  esac
+
+  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+  # uniformly replaced by the line number.  The first 'sed' inserts a
+  # line-number line before each line; the second 'sed' does the real
+  # work.  The second script uses 'N' to pair each line-number line
+  # with the numbered line, and appends trailing '-' during
+  # substitution so that $LINENO is not a special case at line end.
+  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
+  sed '=' <$as_myself |
+    sed '
+      N
+      s,$,-,
+      : loop
+      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+      t loop
+      s,-$,,
+      s,^['$as_cr_digits']*\n,,
+    ' >$as_me.lineno &&
+  chmod +x $as_me.lineno ||
+    { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
+echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
+   { (exit 1); exit 1; }; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensible to this).
+  . ./$as_me.lineno
+  # Exit status is that of the last command.
+  exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+  *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T='	' ;;
+  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
 
 if expr a : '\(a\)' >/dev/null 2>&1; then
   as_expr=expr
@@ -8132,22 +10987,12 @@ rm -f conf$$ conf$$.exe conf$$.file
 
 as_executable_p="test -f"
 
-# Support unset when possible.
-if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
 
-# NLS nuisances.
-$as_unset LANG || test "${LANG+set}" != set || { LANG=C; export LANG; }
-$as_unset LC_ALL || test "${LC_ALL+set}" != set || { LC_ALL=C; export LC_ALL; }
-$as_unset LC_TIME || test "${LC_TIME+set}" != set || { LC_TIME=C; export LC_TIME; }
-$as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set || { LC_CTYPE=C; export LC_CTYPE; }
-$as_unset LANGUAGE || test "${LANGUAGE+set}" != set || { LANGUAGE=C; export LANGUAGE; }
-$as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set || { LC_COLLATE=C; export LC_COLLATE; }
-$as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set || { LC_NUMERIC=C; export LC_NUMERIC; }
-$as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set || { LC_MESSAGES=C; export LC_MESSAGES; }
 
 # IFS
 # We need space, tab and new line, in precisely that order.
@@ -8156,10 +11001,34 @@ as_nl='
 IFS=" 	$as_nl"
 
 # CDPATH.
-$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=:; export CDPATH; }
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
 
 exec 6>&1
 
+# Open the log real soon, to keep \$[0] and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.  Logging --version etc. is OK.
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+} >&5
+cat >&5 <<_CSEOF
+
+This file was extended by $as_me, which was
+generated by GNU Autoconf 2.53.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+_CSEOF
+echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
+echo >&5
 _ACEOF
 
 # Files that config.status was made for.
@@ -8179,7 +11048,7 @@ if test -n "$ac_config_commands"; then
   echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
 fi
 
-cat >>$CONFIG_STATUS <<\EOF
+cat >>$CONFIG_STATUS <<\_ACEOF
 
 ac_cs_usage="\
 \`$as_me' instantiates files from templates according to the
@@ -8203,12 +11072,12 @@ Configuration headers:
 $config_headers
 
 Report bugs to <bug-autoconf@gnu.org>."
-EOF
+_ACEOF
 
-cat >>$CONFIG_STATUS <<EOF
+cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.52,
+configured by $0, generated by GNU Autoconf 2.53,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
@@ -8217,9 +11086,9 @@ This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 srcdir=$srcdir
 INSTALL="$INSTALL"
-EOF
+_ACEOF
 
-cat >>$CONFIG_STATUS <<\EOF
+cat >>$CONFIG_STATUS <<\_ACEOF
 # If no file are specified by the user, then we need to provide default
 # value.  By we need to know if files were specified by the user.
 ac_need_defaults=:
@@ -8241,18 +11110,18 @@ do
 
   case $1 in
   # Handling of the options.
-EOF
-cat >>$CONFIG_STATUS <<EOF
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
   -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
     echo "running $SHELL $0 " $ac_configure_args " --no-create --no-recursion"
     exec $SHELL $0 $ac_configure_args --no-create --no-recursion ;;
-EOF
-cat >>$CONFIG_STATUS <<\EOF
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
   --version | --vers* | -V )
     echo "$ac_cs_version"; exit 0 ;;
   --he | --h)
     # Conflict between --help and --header
-    { { echo "$as_me:8255: error: ambiguous option: $1
+    { { echo "$as_me:$LINENO: error: ambiguous option: $1
 Try \`$0 --help' for more information." >&5
 echo "$as_me: error: ambiguous option: $1
 Try \`$0 --help' for more information." >&2;}
@@ -8271,7 +11140,7 @@ Try \`$0 --help' for more information." >&2;}
     ac_need_defaults=false;;
 
   # This is an error.
-  -*) { { echo "$as_me:8274: error: unrecognized option: $1
+  -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
 Try \`$0 --help' for more information." >&5
 echo "$as_me: error: unrecognized option: $1
 Try \`$0 --help' for more information." >&2;}
@@ -8283,25 +11152,13 @@ Try \`$0 --help' for more information." >&2;}
   shift
 done
 
-exec 5>>config.log
-cat >&5 << _ACEOF
-
-## ----------------------- ##
-## Running config.status.  ##
-## ----------------------- ##
-
-This file was extended by $as_me 2.52, executed with
-  CONFIG_FILES    = $CONFIG_FILES
-  CONFIG_HEADERS  = $CONFIG_HEADERS
-  CONFIG_LINKS    = $CONFIG_LINKS
-  CONFIG_COMMANDS = $CONFIG_COMMANDS
-  > $ac_cs_invocation
-on `(hostname || uname -n) 2>/dev/null | sed 1q`
-
 _ACEOF
-EOF
 
-cat >>$CONFIG_STATUS <<\EOF
+
+
+
+
+cat >>$CONFIG_STATUS <<\_ACEOF
 for ac_config_target in $ac_config_targets
 do
   case "$ac_config_target" in
@@ -8316,7 +11173,7 @@ do
   "CHR/Makefile" ) CONFIG_FILES="$CONFIG_FILES CHR/Makefile" ;;
   "CLPQR/Makefile" ) CONFIG_FILES="$CONFIG_FILES CLPQR/Makefile" ;;
   "config.h" ) CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
-  *) { { echo "$as_me:8319: error: invalid argument: $ac_config_target" >&5
+  *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
 echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
    { (exit 1); exit 1; }; };;
   esac
@@ -8353,9 +11210,9 @@ $debug ||
    { (exit 1); exit 1; }
 }
 
-EOF
+_ACEOF
 
-cat >>$CONFIG_STATUS <<EOF
+cat >>$CONFIG_STATUS <<_ACEOF
 
 #
 # CONFIG_FILES section.
@@ -8368,6 +11225,12 @@ if test -n "\$CONFIG_FILES"; then
   sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
    s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF
 s,@SHELL@,$SHELL,;t t
+s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
+s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
+s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
+s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
+s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
+s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
 s,@exec_prefix@,$exec_prefix,;t t
 s,@prefix@,$prefix,;t t
 s,@program_transform_name@,$program_transform_name,;t t
@@ -8383,19 +11246,13 @@ s,@includedir@,$includedir,;t t
 s,@oldincludedir@,$oldincludedir,;t t
 s,@infodir@,$infodir,;t t
 s,@mandir@,$mandir,;t t
-s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
-s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
-s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
-s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
-s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
 s,@build_alias@,$build_alias,;t t
 s,@host_alias@,$host_alias,;t t
 s,@target_alias@,$target_alias,;t t
+s,@DEFS@,$DEFS,;t t
 s,@ECHO_C@,$ECHO_C,;t t
 s,@ECHO_N@,$ECHO_N,;t t
 s,@ECHO_T@,$ECHO_T,;t t
-s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
-s,@DEFS@,$DEFS,;t t
 s,@LIBS@,$LIBS,;t t
 s,@CC@,$CC,;t t
 s,@CFLAGS@,$CFLAGS,;t t
@@ -8453,9 +11310,9 @@ s,@M4GENHDRS@,$M4GENHDRS,;t t
 s,@M4GENABSMI@,$M4GENABSMI,;t t
 CEOF
 
-EOF
+_ACEOF
 
-  cat >>$CONFIG_STATUS <<\EOF
+  cat >>$CONFIG_STATUS <<\_ACEOF
   # Split the substitutions into bite-sized pieces for seds with
   # small command number limits, like on Digital OSF/1 and HP-UX.
   ac_max_sed_lines=48
@@ -8494,8 +11351,8 @@ EOF
   fi
 fi # test -n "$CONFIG_FILES"
 
-EOF
-cat >>$CONFIG_STATUS <<\EOF
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
 for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
   # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
   case $ac_file in
@@ -8509,7 +11366,8 @@ for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
   esac
 
   # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
-  ac_dir=`$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+  ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
          X"$ac_file" : 'X\(//\)[^/]' \| \
          X"$ac_file" : 'X\(//\)$' \| \
          X"$ac_file" : 'X\(/\)' \| \
@@ -8520,8 +11378,7 @@ echo X"$ac_file" |
   	  /^X\(\/\/\)$/{ s//\1/; q; }
   	  /^X\(\/\).*/{ s//\1/; q; }
   	  s/.*/./; q'`
-  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
-    { case "$ac_dir" in
+  { case "$ac_dir" in
   [\\/]* | ?:[\\/]* ) as_incr_dir=;;
   *)                      as_incr_dir=.;;
 esac
@@ -8532,48 +11389,68 @@ for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
     ?:) as_incr_dir=$as_mkdir_dir ;;
     *)
       as_incr_dir=$as_incr_dir/$as_mkdir_dir
-      test -d "$as_incr_dir" || mkdir "$as_incr_dir"
+      test -d "$as_incr_dir" ||
+        mkdir "$as_incr_dir" ||
+	{ { echo "$as_me:$LINENO: error: cannot create \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create \"$ac_dir\"" >&2;}
+   { (exit 1); exit 1; }; }
     ;;
   esac
 done; }
 
-    ac_dir_suffix="/`echo $ac_dir|sed 's,^\./,,'`"
-    # A "../" for each directory in $ac_dir_suffix.
-    ac_dots=`echo "$ac_dir_suffix" | sed 's,/[^/]*,../,g'`
-  else
-    ac_dir_suffix= ac_dots=
-  fi
+  ac_builddir=.
 
-  case $srcdir in
-  .)  ac_srcdir=.
-      if test -z "$ac_dots"; then
-         ac_top_srcdir=.
-      else
-         ac_top_srcdir=`echo $ac_dots | sed 's,/$,,'`
-      fi ;;
-  [\\/]* | ?:[\\/]* )
-      ac_srcdir=$srcdir$ac_dir_suffix;
-      ac_top_srcdir=$srcdir ;;
+if test "$ac_dir" != .; then
+  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+  # A "../" for each directory in $ac_dir_suffix.
+  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+  ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+  .)  # No --srcdir option.  We are building in place.
+    ac_srcdir=.
+    if test -z "$ac_top_builddir"; then
+       ac_top_srcdir=.
+    else
+       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+    fi ;;
+  [\\/]* | ?:[\\/]* )  # Absolute path.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir ;;
   *) # Relative path.
-    ac_srcdir=$ac_dots$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_dots$srcdir ;;
-  esac
+    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
+ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
 
   case $INSTALL in
   [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
-  *) ac_INSTALL=$ac_dots$INSTALL ;;
+  *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
   esac
 
   if test x"$ac_file" != x-; then
-    { echo "$as_me:8568: creating $ac_file" >&5
+    { echo "$as_me:$LINENO: creating $ac_file" >&5
 echo "$as_me: creating $ac_file" >&6;}
     rm -f "$ac_file"
   fi
   # Let's still pretend it is `configure' which instantiates (i.e., don't
   # use $as_me), people would be surprised to read:
-  #    /* config.h.  Generated automatically by config.status.  */
-  configure_input="Generated automatically from `echo $ac_file_in |
-                                                 sed 's,.*/,,'` by configure."
+  #    /* config.h.  Generated by config.status.  */
+  if test x"$ac_file" = x-; then
+    configure_input=
+  else
+    configure_input="$ac_file.  "
+  fi
+  configure_input=$configure_input"Generated from `echo $ac_file_in |
+                                     sed 's,.*/,,'` by configure."
 
   # First look for the input files in the build tree, otherwise in the
   # src tree.
@@ -8583,7 +11460,7 @@ echo "$as_me: creating $ac_file" >&6;}
       -) echo $tmp/stdin ;;
       [\\/$]*)
          # Absolute (can't be DOS-style, as IFS=:)
-         test -f "$f" || { { echo "$as_me:8586: error: cannot find input file: $f" >&5
+         test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          echo $f;;
@@ -8596,23 +11473,29 @@ echo "$as_me: error: cannot find input file: $f" >&2;}
            echo $srcdir/$f
          else
            # /dev/null tree
-           { { echo "$as_me:8599: error: cannot find input file: $f" >&5
+           { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          fi;;
       esac
     done` || { (exit 1); exit 1; }
-EOF
-cat >>$CONFIG_STATUS <<EOF
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
   sed "$ac_vpsub
 $extrasub
-EOF
-cat >>$CONFIG_STATUS <<\EOF
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
 :t
 /@[a-zA-Z_][a-zA-Z_0-9]*@/!b
 s,@configure_input@,$configure_input,;t t
 s,@srcdir@,$ac_srcdir,;t t
+s,@abs_srcdir@,$ac_abs_srcdir,;t t
 s,@top_srcdir@,$ac_top_srcdir,;t t
+s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
+s,@builddir@,$ac_builddir,;t t
+s,@abs_builddir@,$ac_abs_builddir,;t t
+s,@top_builddir@,$ac_top_builddir,;t t
+s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
 s,@INSTALL@,$ac_INSTALL,;t t
 " $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
   rm -f $tmp/stdin
@@ -8624,8 +11507,8 @@ s,@INSTALL@,$ac_INSTALL,;t t
   fi
 
 done
-EOF
-cat >>$CONFIG_STATUS <<\EOF
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
 
 #
 # CONFIG_HEADER section.
@@ -8657,7 +11540,7 @@ for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
   * )   ac_file_in=$ac_file.in ;;
   esac
 
-  test x"$ac_file" != x- && { echo "$as_me:8660: creating $ac_file" >&5
+  test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
 echo "$as_me: creating $ac_file" >&6;}
 
   # First look for the input files in the build tree, otherwise in the
@@ -8668,7 +11551,7 @@ echo "$as_me: creating $ac_file" >&6;}
       -) echo $tmp/stdin ;;
       [\\/$]*)
          # Absolute (can't be DOS-style, as IFS=:)
-         test -f "$f" || { { echo "$as_me:8671: error: cannot find input file: $f" >&5
+         test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          echo $f;;
@@ -8681,7 +11564,7 @@ echo "$as_me: error: cannot find input file: $f" >&2;}
            echo $srcdir/$f
          else
            # /dev/null tree
-           { { echo "$as_me:8684: error: cannot find input file: $f" >&5
+           { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          fi;;
@@ -8690,7 +11573,7 @@ echo "$as_me: error: cannot find input file: $f" >&2;}
   # Remove the trailing spaces.
   sed 's/[ 	]*$//' $ac_file_inputs >$tmp/in
 
-EOF
+_ACEOF
 
 # Transform confdefs.h into two sed scripts, `conftest.defines' and
 # `conftest.undefs', that substitutes the proper values into
@@ -8706,16 +11589,16 @@ rm -f conftest.defines conftest.undefs
 # `end' is used to avoid that the second main sed command (meant for
 # 0-ary CPP macros) applies to n-ary macro definitions.
 # See the Autoconf documentation for `clear'.
-cat >confdef2sed.sed <<\EOF
+cat >confdef2sed.sed <<\_ACEOF
 s/[\\&,]/\\&/g
 s,[\\$`],\\&,g
 t clear
 : clear
-s,^[ 	]*#[ 	]*define[ 	][ 	]*\(\([^ 	(][^ 	(]*\)([^)]*)\)[ 	]*\(.*\)$,${ac_dA}\2${ac_dB}\1${ac_dC}\3${ac_dD},gp
+s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	(][^ 	(]*\)\(([^)]*)\)[ 	]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp
 t end
 s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	][^ 	]*\)[ 	]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
 : end
-EOF
+_ACEOF
 # If some macros were called several times there might be several times
 # the same #defines, which is useless.  Nevertheless, we may not want to
 # sort them, since we want the *last* AC-DEFINE to be honored.
@@ -8726,9 +11609,9 @@ rm -f confdef2sed.sed
 # This sed command replaces #undef with comments.  This is necessary, for
 # example, in the case of _POSIX_SOURCE, which is predefined and required
 # on some systems where configure will not decide to define it.
-cat >>conftest.undefs <<\EOF
+cat >>conftest.undefs <<\_ACEOF
 s,^[ 	]*#[ 	]*undef[ 	][ 	]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
-EOF
+_ACEOF
 
 # Break up conftest.defines because some shells have a limit on the size
 # of here documents, and old seds have small limits too (100 cmds).
@@ -8785,23 +11668,24 @@ do
 done
 rm -f conftest.undefs
 
-cat >>$CONFIG_STATUS <<\EOF
+cat >>$CONFIG_STATUS <<\_ACEOF
   # Let's still pretend it is `configure' which instantiates (i.e., don't
   # use $as_me), people would be surprised to read:
-  #    /* config.h.  Generated automatically by config.status.  */
+  #    /* config.h.  Generated by config.status.  */
   if test x"$ac_file" = x-; then
-    echo "/* Generated automatically by configure.  */" >$tmp/config.h
+    echo "/* Generated by configure.  */" >$tmp/config.h
   else
-    echo "/* $ac_file.  Generated automatically by configure.  */" >$tmp/config.h
+    echo "/* $ac_file.  Generated by configure.  */" >$tmp/config.h
   fi
   cat $tmp/in >>$tmp/config.h
   rm -f $tmp/in
   if test x"$ac_file" != x-; then
     if cmp -s $ac_file $tmp/config.h 2>/dev/null; then
-      { echo "$as_me:8801: $ac_file is unchanged" >&5
+      { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
 echo "$as_me: $ac_file is unchanged" >&6;}
     else
-      ac_dir=`$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+      ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
          X"$ac_file" : 'X\(//\)[^/]' \| \
          X"$ac_file" : 'X\(//\)$' \| \
          X"$ac_file" : 'X\(/\)' \| \
@@ -8812,8 +11696,7 @@ echo X"$ac_file" |
   	  /^X\(\/\/\)$/{ s//\1/; q; }
   	  /^X\(\/\).*/{ s//\1/; q; }
   	  s/.*/./; q'`
-      if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
-        { case "$ac_dir" in
+      { case "$ac_dir" in
   [\\/]* | ?:[\\/]* ) as_incr_dir=;;
   *)                      as_incr_dir=.;;
 esac
@@ -8824,12 +11707,15 @@ for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
     ?:) as_incr_dir=$as_mkdir_dir ;;
     *)
       as_incr_dir=$as_incr_dir/$as_mkdir_dir
-      test -d "$as_incr_dir" || mkdir "$as_incr_dir"
+      test -d "$as_incr_dir" ||
+        mkdir "$as_incr_dir" ||
+	{ { echo "$as_me:$LINENO: error: cannot create \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create \"$ac_dir\"" >&2;}
+   { (exit 1); exit 1; }; }
     ;;
   esac
 done; }
 
-      fi
       rm -f $ac_file
       mv $tmp/config.h $ac_file
     fi
@@ -8838,15 +11724,16 @@ done; }
     rm -f $tmp/config.h
   fi
 done
-EOF
+_ACEOF
 
-cat >>$CONFIG_STATUS <<\EOF
+cat >>$CONFIG_STATUS <<\_ACEOF
 
 { (exit 0); exit 0; }
-EOF
+_ACEOF
 chmod +x $CONFIG_STATUS
 ac_clean_files=$ac_clean_files_save
 
+
 # configure is writing to config.log, and then calls config.status.
 # config.status does its own redirection, appending to config.log.
 # Unfortunately, on DOS this fails, as config.log is still kept open
@@ -8865,5 +11752,6 @@ if test "$no_create" != yes; then
   $ac_cs_success || { (exit 1); exit 1; }
 fi
 
+
 make depend
 
diff --git a/docs/yap.tex b/docs/yap.tex
index 7299fc415..3bf156a4b 100644
--- a/docs/yap.tex
+++ b/docs/yap.tex
@@ -4672,21 +4672,23 @@ both static and dynamic predicates.
 @findex assert_static/1
 @snindex assert_static/1
 @cnindex assert_static/1
- Adds clause @var{C} to a static procedure.
+ Adds clause @var{C} to a static procedure. Asserting a static clause
+for a predicate while choice-points for the predicate are availabe has
+undefined results.
 
 @item asserta_static(+@var{C})
 @findex asserta_static/1
 @snindex asserta_static/1
 @cnindex asserta_static/1
- Adds clause @var{C} to the beginning of a static procedure. Note that
-the operation may fail if pointers to the procedure are in the stacks.
+ Adds clause @var{C} to the beginning of a static procedure. 
 
 @item assertz_static(+@var{C})
 @findex assertz_static/1
 @snindex assertz_static/1
 @cnindex assertz_static/1
- Adds clause @var{C} to the end of a static procedure. Note that
-the operation may fail if pointers to the procedure are in the stacks.
+ Adds clause @var{C} to the end of a static procedure.  Asserting a
+static clause for a predicate while choice-points for the predicate are
+availabe has undefined results.
 
 @end table
 
diff --git a/include/c_interface.h b/include/c_interface.h
index 8cc485502..49e65df1c 100644
--- a/include/c_interface.h
+++ b/include/c_interface.h
@@ -235,6 +235,15 @@ static Term (*YapIMkPairTerm)() = YapMkPairTerm;
 #define MkPairTerm(T1,T2) YapMkPairTerm(T1,T2)
 #endif
 
+/*    Term  MkNewPairTerm(void) */
+extern X_API Term PROTO(YapMkNewPairTerm,(void));
+#ifdef IndirectCalls
+static Term (*YapIMkNewPairTerm)() = YapMkNewPairTerm;
+#define MkNewPairTerm() (*YapIMkNewPairTerm)()
+#else
+#define MkNewPairTerm() YapMkNewPairTerm()
+#endif
+
 /*    Term  HeadOfTerm(Term)  */
 extern X_API Term PROTO(YapHeadOfTerm,(Term));
 #ifdef IndirectCalls
@@ -355,9 +364,9 @@ static void (*YapIUserBackCPredicate)() = UserBackCPredicate;
 #endif
 
 /*  void CallProlog(Term t) */
-extern X_API void PROTO(YapCallProlog,(Term t));
+extern X_API Int PROTO(YapCallProlog,(Term t));
 #ifdef IndirectCalls
-static void (*YapICallProlog)() = YapCallProlog;
+static Int (*YapICallProlog)() = YapCallProlog;
 #define CallProlog(t) (*YapICallProlog)(t)
 #else
 #define CallProlog(t) YapCallProlog(t)
@@ -420,6 +429,20 @@ static int (YapIContinueGoal)() = YapContinueGoal;
 #define YapContinueGoal() (*YapIContinueGoal)()
 #endif
 
+/*  void YapPruneGoal(void) */
+extern X_API void PROTO(YapPruneGoal,(void));
+#ifdef IndirectCalls
+static void (YapIPruneGoal)() = YapPruneGoal;
+#define YapPruneGoal() (*YapIPruneGoal)()
+#endif
+
+/*  int YapGoalHasException(void) */
+extern X_API int PROTO(YapGoalHasException,(Term *));
+#ifdef IndirectCalls
+static int (YapIGoalHasException)(TP) = YapGoalHasException;
+#define YapGoalHasException(TP) (*YapIGoalHasException)(TP)
+#endif
+
 /*  int YapReset(void) */
 extern X_API void PROTO(YapReset,(void));
 #ifdef IndirectCalls
@@ -592,12 +615,33 @@ static Term (*YapIOpenStream)() = YapOpenStream;
 #endif
 
 /*  Term  *YapNewSlots()  */
-extern X_API Term *PROTO(YapNewSlots,(int));
+extern X_API long PROTO(YapNewSlots,(int));
 #ifdef IndirectCalls
-static Term *(*YapINewSlots)(N) = YapNewSlots;
+static long (*YapINewSlots)(N) = YapNewSlots;
 #define YapNewSlots(N) (*YapINewSlots)(N)
 #endif
 
+/*  Term  YapGetFromSlots(t)  */
+extern X_API Term PROTO(YapGetFromSlot,(long));
+#ifdef IndirectCalls
+static Term (*YapIGetFromSlot)(N) = YapGetFromSlot;
+#define YapGetFromSlot(N) (*YapIGetFromSlot)(N)
+#endif
+
+/*  Term  YapAddressFromSlots(t)  */
+extern X_API Term *PROTO(YapAddressFromSlot,(long));
+#ifdef IndirectCalls
+static Term *(*YapIAddressFromSlot)(N) = YapAddressFromSlot;
+#define YapAddressFromSlot(N) (*YapIAddressFromSlot)(N)
+#endif
+
+/*  Term  YapPutInSlots(t)  */
+extern X_API void PROTO(YapPutInSlot,(long, Term));
+#ifdef IndirectCalls
+static void (*YapIPutInSlot)(N,T) = YapPutInSlot;
+#define YapPutInSlot(N,T) (*YapIPutInSlot)(N,T)
+#endif
+
 /*  void  YapRecoverSlots()  */
 extern X_API void PROTO(YapRecoverSlots,(int));
 #ifdef IndirectCalls
@@ -655,5 +699,13 @@ static void (*YapIPredicateInfo)(P,N,A,M) = YapPredicateInfo;
 #endif
 
 
+/*  int  YapPredicate()  */
+extern X_API int  PROTO(YapCurrentModule,(void));
+#ifdef IndirectCalls
+static int (*YapICurrentModule)() = YapCurrentModule;
+#define YapCurrentModule() (*YapICurrentModule)()
+#endif
+
+
 #define InitCPred(N,A,F)  UserCPredicate(N,F,A)
 
diff --git a/misc/yap.def b/misc/yap.def
index 71f26239a..02db849e9 100644
--- a/misc/yap.def
+++ b/misc/yap.def
@@ -24,6 +24,7 @@ YapLookupAtom
 YapFullLookupAtom
 YapAtomName
 YapMkPairTerm
+YapMkNewPairTerm
 YapHeadOfTerm
 YapTailOfTerm
 YapMkApplTerm
@@ -48,6 +49,8 @@ YapBufferToAtomList
 YapError
 YapRunGoal
 YapContinueGoal
+YapPruneGoal
+YapGoalHasException
 YapRead
 YapCompileClause
 YapInit
@@ -65,6 +68,9 @@ YapStreamToFileNo
 YapCloseAllOpenStreams
 YapOpenStream
 YapNewSlots
+YapGetFromSlot
+YapAddressFromSlot
+YapPutInSlot
 YapRecoverSlots
 YapThrow
 YapLookupModule
@@ -72,4 +78,5 @@ YapModuleName
 YapHalt
 YapTopOfLocalStack
 YapPredicate
+YapCurrentModule
 
diff --git a/pl/init.yap b/pl/init.yap
index 52f610993..7fd63ec31 100644
--- a/pl/init.yap
+++ b/pl/init.yap
@@ -22,7 +22,7 @@
 % so that the user will get a redefining system predicate
 otherwise.
 fail :- fail.
-false :- false.
+false :- fail.
 !.
 (:- G) :- '$execute'(G), !.
 '$$!'(CP) :- '$cut_by'(CP).
@@ -121,7 +121,6 @@ system_mode(verbose,off) :- '$set_value'('$verbose',off).
 
 :- module(user).
 
-
 :- multifile goal_expansion/3.
 
 :- dynamic_predicate(goal_expansion/3, logical).