diff --git a/C/mavar.c b/C/mavar.c
index 01472156a..253c13d4c 100644
--- a/C/mavar.c
+++ b/C/mavar.c
@@ -160,6 +160,11 @@ Term UpdateTimedVar(Term inv, Term new)
     else
 #endif
       tv->value = new;
+#if defined(SBA) || defined(TABLING)
+    if (Unsigned((Int)(tv)-(Int)(HBREG)) >
+      Unsigned(BBREG)-(Int)(HBREG))
+    TrailVal(timestmp-1) = new;
+#endif    
   } else {
     Term nclock = (Term)H;
     MaBind(&(tv->value), new);
diff --git a/OPTYap/opt.preds.c b/OPTYap/opt.preds.c
index 55d828140..c0e78fa7a 100644
--- a/OPTYap/opt.preds.c
+++ b/OPTYap/opt.preds.c
@@ -35,12 +35,12 @@ static qg_ans_fr_ptr actual_answer;
 **      Local functions declaration      **
 ** ------------------------------------- */
 
+static int p_default_sequential(void);
 #ifdef YAPOR
 static realtime current_time(void);
 static int yapor_on(void);
 static int start_yapor(void);
 static int p_sequential(void);
-static int p_default_sequential(void);
 static int p_execution_mode(void);
 static int p_performance(void);
 static int p_parallel_new_answer(void);
@@ -106,6 +106,39 @@ void finish_yapor(void) {
 **      Local functions      **
 ** ------------------------- */
 
+static
+int p_default_sequential(void) {
+#ifdef YAPOR
+  Term t;
+  t = Deref(ARG1);
+  if (IsVarTerm(t)) {
+    Term ta;
+    if (SEQUENTIAL_IS_DEFAULT)
+      ta = MkAtomTerm(LookupAtom("on"));
+    else
+      ta = MkAtomTerm(LookupAtom("off"));
+    Bind((CELL *)t, ta);
+    return(TRUE);
+  } 
+  if (IsAtomTerm(t)) {
+    char *s;
+    s = RepAtom(AtomOfTerm(t))->StrOfAE;
+    if (strcmp(s, "on") == 0) {
+      SEQUENTIAL_IS_DEFAULT = TRUE;
+      return(TRUE);
+    } 
+    if (strcmp(s,"off") == 0) {
+      SEQUENTIAL_IS_DEFAULT = FALSE;
+      return(TRUE);
+    }
+  }
+  return(FALSE);
+#else
+  return(TRUE);
+#endif
+}
+
+
 #ifdef YAPOR
 static
 realtime current_time(void) {
@@ -174,35 +207,6 @@ int p_sequential(void) {
 }
 
 
-static
-int p_default_sequential(void) {
-  Term t;
-  t = Deref(ARG1);
-  if (IsVarTerm(t)) {
-    Term ta;
-    if (SEQUENTIAL_IS_DEFAULT)
-      ta = MkAtomTerm(LookupAtom("on"));
-    else
-      ta = MkAtomTerm(LookupAtom("off"));
-    Bind((CELL *)t, ta);
-    return(TRUE);
-  } 
-  if (IsAtomTerm(t)) {
-    char *s;
-    s = RepAtom(AtomOfTerm(t))->StrOfAE;
-    if (strcmp(s, "on") == 0) {
-      SEQUENTIAL_IS_DEFAULT = TRUE;
-      return(TRUE);
-    } 
-    if (strcmp(s,"off") == 0) {
-      SEQUENTIAL_IS_DEFAULT = FALSE;
-      return(TRUE);
-    }
-  }
-  return(FALSE);
-}
-
-
 static
 int p_execution_mode(void) {
   Term t;
diff --git a/TO_DO b/TO_DO
index 58c235897..3c3a5e7b8 100644
--- a/TO_DO
+++ b/TO_DO
@@ -13,7 +13,7 @@ BEFORE 4.4:
 - library(system) for WIN32
 - document system(library)
 - document new interface functions.
-- remove pl/nfr.yap and misc/yap.spec from CVS.
+- ^C can break code.
 
 TO CHECK:
 - bad register allocation for a(X,Y) :- X is Y+2.3 ?
@@ -21,6 +21,7 @@ TO CHECK:
 TABLING
 - pass all tabling tests from Kostis and Bart paper
 - handle floats, long ints and friends in tables.
+- make gc work after mutable var changes.
 - knap-sack
 
 AFTER 4.4(?)
@@ -32,7 +33,6 @@ AFTER 4.4(?)
 - garbage collector cleans up clauses and logical update DB.
 - atom garbage collector.
 - lpdoc.
-- deterministic trail entries for multi-assignment variables.
 
 DONE:
 - compilation of bignums.
@@ -72,3 +72,5 @@ DONE:
 - listing (Steve Moyle).
 - logtalk.
 - fix bugs from Nicos.
+- remove pl/nfr.yap and misc/yap.spec from CVS.
+- deterministic trail entries for multi-assignment variables.
diff --git a/changes4.3.html b/changes4.3.html
index 865ef8ec8..cc1d95dfc 100644
--- a/changes4.3.html
+++ b/changes4.3.html
@@ -16,6 +16,10 @@
 
 <h2>Yap-4.3.19:</h2>
 <ul>
+	<li>FIXED: upgrade to autoconf 2.5.</li>
+	<li>FIXED: catch and throw should not leave unnecessary
+		choice-points behind.</li>
+	<li>FIXED: make catch cleanup queue of findall entries.</li>
 	<li>FIXED: change catch and throw to use arrays.</li>
 	<li>CLEANUP: split TRAIL_REF.</li>
 	<li>FIXED: give correct type to FreeBlocks.</li>
diff --git a/config.guess b/config.guess
index e9e44559f..89f122dea 100644
--- a/config.guess
+++ b/config.guess
@@ -1,7 +1,10 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright (C) 1992, 93, 94, 95, 1996 Free Software Foundation, Inc.
-#
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+#   Free Software Foundation, Inc.
+
+timestamp='2001-06-01'
+
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
@@ -22,18 +25,92 @@
 # the same distribution terms that you use for the rest of that program.
 
 # Written by Per Bothner <bothner@cygnus.com>.
-# The master version of this file is at the FSF in /home/gd/gnu/lib.
+# Please send patches to <config-patches@gnu.org>.
 #
 # This script attempts to guess a canonical system name similar to
 # config.sub.  If it succeeds, it prints the system name on stdout, and
 # exits with 0.  Otherwise, it exits with 1.
 #
 # The plan is that this can be called by configure scripts if you
-# don't specify an explicit system type (host/target name).
-#
-# Only a few systems have been added to this list; please add others
-# (but try to keep the structure clean).
-#
+# don't specify an explicit build system type.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 99, 2000
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit 0 ;;
+    --version | -v )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+
+dummy=dummy-$$
+trap 'rm -f $dummy.c $dummy.o $dummy.rel $dummy; exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script.
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int dummy(){}" > $dummy.c
+	for c in cc gcc c89 ; do
+	  ($c $dummy.c -c -o $dummy.o) >/dev/null 2>&1
+	  if test $? = 0 ; then
+	     CC_FOR_BUILD="$c"; break
+	  fi
+	done
+	rm -f $dummy.c $dummy.o $dummy.rel
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac
 
 # This is needed to find uname on a Pyramid OSx when run in the BSD universe.
 # (ghazi@noc.rutgers.edu 8/24/94.)
@@ -43,37 +120,162 @@ fi
 
 UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
 UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
-UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
-trap 'rm -f dummy.c dummy.o dummy; exit 1' 1 2 15
-
 # Note: order is significant - the case branches are not exclusive.
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+	# Netbsd (nbsd) targets should (where applicable) match one or
+	# more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	# Determine the machine/vendor (is the vendor relevant).
+	case "${UNAME_MACHINE}" in
+	    amiga) machine=m68k-unknown ;;
+	    arm32) machine=arm-unknown ;;
+	    atari*) machine=m68k-atari ;;
+	    sun3*) machine=m68k-sun ;;
+	    mac68k) machine=m68k-apple ;;
+	    macppc) machine=powerpc-apple ;;
+	    hp3[0-9][05]) machine=m68k-hp ;;
+	    ibmrt|romp-ibm) machine=romp-ibm ;;
+	    *) machine=${UNAME_MACHINE}-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently, or will in the future.
+	case "${UNAME_MACHINE}" in
+	    i386|sparc|amiga|arm*|hp300|mvme68k|vax|atari|luna68k|mac68k|news68k|next68k|pc532|sun3*|x68k)
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep __ELF__ >/dev/null
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+	        os=netbsd
+		;;
+	esac
+	# The OS release
+	release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "${machine}-${os}${release}"
+	exit 0 ;;
     alpha:OSF1:*:*)
+	if test $UNAME_RELEASE = "V4.0"; then
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+	fi
 	# A Vn.n version is a released version.
 	# A Tn.n version is a released field test version.
 	# A Xn.n version is an unreleased experimental baselevel.
 	# 1.2 uses "1.2" for uname -r.
-	echo alpha-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//'`
+	cat <<EOF >$dummy.s
+	.data
+\$Lformat:
+	.byte 37,100,45,37,120,10,0	# "%d-%x\n"
+
+	.text
+	.globl main
+	.align 4
+	.ent main
+main:
+	.frame \$30,16,\$26,0
+	ldgp \$29,0(\$27)
+	.prologue 1
+	.long 0x47e03d80 # implver \$0
+	lda \$2,-1
+	.long 0x47e20c21 # amask \$2,\$1
+	lda \$16,\$Lformat
+	mov \$0,\$17
+	not \$1,\$18
+	jsr \$26,printf
+	ldgp \$29,0(\$26)
+	mov 0,\$16
+	jsr \$26,exit
+	.end main
+EOF
+	$CC_FOR_BUILD $dummy.s -o $dummy 2>/dev/null
+	if test "$?" = 0 ; then
+		case `./$dummy` in
+			0-0)
+				UNAME_MACHINE="alpha"
+				;;
+			1-0)
+				UNAME_MACHINE="alphaev5"
+				;;
+			1-1)
+				UNAME_MACHINE="alphaev56"
+				;;
+			1-101)
+				UNAME_MACHINE="alphapca56"
+				;;
+			2-303)
+				UNAME_MACHINE="alphaev6"
+				;;
+			2-307)
+				UNAME_MACHINE="alphaev67"
+				;;
+		esac
+	fi
+	rm -f $dummy.s $dummy
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	exit 0 ;;
+    Alpha\ *:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# Should we change UNAME_MACHINE based on the output of uname instead
+	# of the specific Alpha model?
+	echo alpha-pc-interix
 	exit 0 ;;
     21064:Windows_NT:50:3)
 	echo alpha-dec-winnt3.5
 	exit 0 ;;
     Amiga*:UNIX_System_V:4.0:*)
-	echo m68k-cbm-sysv4
+	echo m68k-unknown-sysv4
 	exit 0;;
-    amiga:NetBSD:*:*)
-      echo m68k-cbm-netbsd${UNAME_RELEASE}
-      exit 0 ;;
     amiga:OpenBSD:*:*)
-      echo m68k-cbm-openbsd${UNAME_RELEASE}
-      exit 0 ;;
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-amigaos
+	exit 0 ;;
+    arc64:OpenBSD:*:*)
+	echo mips64el-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    arc:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    hkmips:OpenBSD:*:*)
+	echo mips-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    pmax:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    sgi:OpenBSD:*:*)
+	echo mips-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    wgrisc:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit 0 ;;
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
 	echo arm-acorn-riscix${UNAME_RELEASE}
 	exit 0;;
-    Pyramid*:OSx*:*:*|MIS*:OSx*:*:*)
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit 0;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
 	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
 	if test "`(/bin/universe) 2>/dev/null`" = att ; then
 		echo pyramid-pyramid-sysv3
@@ -81,9 +283,12 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		echo pyramid-pyramid-bsd
 	fi
 	exit 0 ;;
-    NILE:*:*:dcosx)
+    NILE*:*:*:dcosx)
 	echo pyramid-pyramid-svr4
 	exit 0 ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit 0 ;;
     sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
 	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit 0 ;;
@@ -108,26 +313,61 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     sun3*:SunOS:*:*)
 	echo m68k-sun-sunos${UNAME_RELEASE}
 	exit 0 ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(head -1 /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos${UNAME_RELEASE}
+		;;
+	    sun4)
+		echo sparc-sun-sunos${UNAME_RELEASE}
+		;;
+	esac
+	exit 0 ;;
     aushp:SunOS:*:*)
 	echo sparc-auspex-sunos${UNAME_RELEASE}
 	exit 0 ;;
-    atari*:NetBSD:*:*)
-	echo m68k-atari-netbsd${UNAME_RELEASE}
-	exit 0 ;;
     atari*:OpenBSD:*:*)
-	echo m68k-atari-openbsd${UNAME_RELEASE}
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
 	exit 0 ;;
-    sun3*:NetBSD:*:*)
-	echo m68k-sun-netbsd${UNAME_RELEASE}
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+        echo m68k-atari-mint${UNAME_RELEASE}
 	exit 0 ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+        exit 0 ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+        echo m68k-atari-mint${UNAME_RELEASE}
+	exit 0 ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+        echo m68k-milan-mint${UNAME_RELEASE}
+        exit 0 ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+        echo m68k-hades-mint${UNAME_RELEASE}
+        exit 0 ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+        echo m68k-unknown-mint${UNAME_RELEASE}
+        exit 0 ;;
     sun3*:OpenBSD:*:*)
-	echo m68k-sun-openbsd${UNAME_RELEASE}
-	exit 0 ;;
-    mac68k:NetBSD:*:*)
-	echo m68k-apple-netbsd${UNAME_RELEASE}
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
 	exit 0 ;;
     mac68k:OpenBSD:*:*)
-	echo m68k-apple-openbsd${UNAME_RELEASE}
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mvme68k:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mvme88k:OpenBSD:*:*)
+	echo m88k-unknown-openbsd${UNAME_RELEASE}
 	exit 0 ;;
     powerpc:machten:*:*)
 	echo powerpc-apple-machten${UNAME_RELEASE}
@@ -141,9 +381,17 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     VAX*:ULTRIX*:*:*)
 	echo vax-dec-ultrix${UNAME_RELEASE}
 	exit 0 ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix${UNAME_RELEASE}
+	exit 0 ;;
     mips:*:*:UMIPS | mips:*:*:RISCos)
-	sed 's/^	//' << EOF >dummy.c
-	int main (argc, argv) int argc; char **argv; {
+	sed 's/^	//' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
 	#if defined (host_mips) && defined (MIPSEB)
 	#if defined (SYSTYPE_SYSV)
 	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
@@ -158,12 +406,15 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	  exit (-1);
 	}
 EOF
-	${CC-cc} dummy.c -o dummy \
-	  && ./dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
-	  && rm dummy.c dummy && exit 0
-	rm -f dummy.c dummy
+	$CC_FOR_BUILD $dummy.c -o $dummy \
+	  && ./$dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
+	  && rm -f $dummy.c $dummy && exit 0
+	rm -f $dummy.c $dummy
 	echo mips-mips-riscos${UNAME_RELEASE}
 	exit 0 ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit 0 ;;
     Night_Hawk:Power_UNIX:*:*)
 	echo powerpc-harris-powerunix
 	exit 0 ;;
@@ -179,15 +430,18 @@ EOF
     AViiON:dgux:*:*)
         # DG/UX returns AViiON for all architectures
         UNAME_PROCESSOR=`/usr/bin/uname -p`
-        if [ $UNAME_PROCESSOR = mc88100 -o $UNAME_PROCESSOR = mc88110 ] ; then
-	if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx \
-	     -o ${TARGET_BINARY_INTERFACE}x = x ] ; then
+	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+	then
+	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+	       [ ${TARGET_BINARY_INTERFACE}x = x ]
+	    then
 		echo m88k-dg-dgux${UNAME_RELEASE}
-	else
+	    else
 		echo m88k-dg-dguxbcs${UNAME_RELEASE}
+	    fi
+	else
+	    echo i586-dg-dgux${UNAME_RELEASE}
 	fi
-        else echo i586-dg-dgux${UNAME_RELEASE}
-        fi
  	exit 0 ;;
     M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
 	echo m88k-dolphin-sysv3
@@ -208,12 +462,20 @@ EOF
     ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
 	echo romp-ibm-aix      # uname -m gives an 8 hex-code CPU id
 	exit 0 ;;              # Note that: echo "'`uname -s`'" gives 'AIX '
-    i?86:AIX:*:*)
+    i*86:AIX:*:*)
 	echo i386-ibm-aix
 	exit 0 ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+	exit 0 ;;
     *:AIX:2:3)
 	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
-		sed 's/^		//' << EOF >dummy.c
+		sed 's/^		//' << EOF >$dummy.c
 		#include <sys/systemcfg.h>
 
 		main()
@@ -224,8 +486,8 @@ EOF
 			exit(0);
 			}
 EOF
-		${CC-cc} dummy.c -o dummy && ./dummy && rm dummy.c dummy && exit 0
-		rm -f dummy.c dummy
+		$CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm -f $dummy.c $dummy && exit 0
+		rm -f $dummy.c $dummy
 		echo rs6000-ibm-aix3.2.5
 	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
 		echo rs6000-ibm-aix3.2.4
@@ -233,8 +495,9 @@ EOF
 		echo rs6000-ibm-aix3.2
 	fi
 	exit 0 ;;
-    *:AIX:*:4)
-	if /usr/sbin/lsattr -EHl proc0 | grep POWER >/dev/null 2>&1; then
+    *:AIX:*:[45])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | head -1 | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
 		IBM_ARCH=rs6000
 	else
 		IBM_ARCH=powerpc
@@ -242,7 +505,7 @@ EOF
 	if [ -x /usr/bin/oslevel ] ; then
 		IBM_REV=`/usr/bin/oslevel`
 	else
-		IBM_REV=4.${UNAME_RELEASE}
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
 	fi
 	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
 	exit 0 ;;
@@ -252,7 +515,7 @@ EOF
     ibmrt:4.4BSD:*|romp-ibm:BSD:*)
 	echo romp-ibm-bsd4.4
 	exit 0 ;;
-    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC NetBSD and
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
 	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
 	exit 0 ;;                           # report: romp-ibm BSD 4.3
     *:BOSX:*:*)
@@ -267,18 +530,75 @@ EOF
     hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
 	echo m68k-hp-bsd4.4
 	exit 0 ;;
-    9000/[3478]??:HP-UX:*:*)
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
 	case "${UNAME_MACHINE}" in
 	    9000/31? )            HP_ARCH=m68000 ;;
 	    9000/[34]?? )         HP_ARCH=m68k ;;
-	    9000/7?? | 9000/8?[1679] ) HP_ARCH=hppa1.1 ;;
-	    9000/8?? )            HP_ARCH=hppa1.0 ;;
+	    9000/[678][0-9][0-9])
+              case "${HPUX_REV}" in
+                11.[0-9][0-9])
+                  if [ -x /usr/bin/getconf ]; then
+                    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+                    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+                    case "${sc_cpu_version}" in
+                      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+                      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+                      532)                      # CPU_PA_RISC2_0
+                        case "${sc_kernel_bits}" in
+                          32) HP_ARCH="hppa2.0n" ;;
+                          64) HP_ARCH="hppa2.0w" ;;
+                        esac ;;
+                    esac
+                  fi ;;
+              esac
+              if [ "${HP_ARCH}" = "" ]; then
+              sed 's/^              //' << EOF >$dummy.c
+
+              #define _HPUX_SOURCE
+              #include <stdlib.h>
+              #include <unistd.h>
+
+              int main ()
+              {
+              #if defined(_SC_KERNEL_BITS)
+                  long bits = sysconf(_SC_KERNEL_BITS);
+              #endif
+                  long cpu  = sysconf (_SC_CPU_VERSION);
+
+                  switch (cpu)
+              	{
+              	case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+              	case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+              	case CPU_PA_RISC2_0:
+              #if defined(_SC_KERNEL_BITS)
+              	    switch (bits)
+              		{
+              		case 64: puts ("hppa2.0w"); break;
+              		case 32: puts ("hppa2.0n"); break;
+              		default: puts ("hppa2.0"); break;
+              		} break;
+              #else  /* !defined(_SC_KERNEL_BITS) */
+              	    puts ("hppa2.0"); break;
+              #endif
+              	default: puts ("hppa1.0"); break;
+              	}
+                  exit (0);
+              }
+EOF
+	(CCOPTS= $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null ) && HP_ARCH=`./$dummy`
+	if test -z "$HP_ARCH"; then HP_ARCH=hppa; fi
+	rm -f $dummy.c $dummy
+	fi ;;
 	esac
-	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
 	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
 	exit 0 ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux${HPUX_REV}
+	exit 0 ;;
     3050*:HI-UX:*:*)
-	sed 's/^	//' << EOF >dummy.c
+	sed 's/^	//' << EOF >$dummy.c
 	#include <unistd.h>
 	int
 	main ()
@@ -303,8 +623,8 @@ EOF
 	  exit (0);
 	}
 EOF
-	${CC-cc} dummy.c -o dummy && ./dummy && rm dummy.c dummy && exit 0
-	rm -f dummy.c dummy
+	$CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm -f $dummy.c $dummy && exit 0
+	rm -f $dummy.c $dummy
 	echo unknown-hitachi-hiuxwe2
 	exit 0 ;;
     9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
@@ -313,13 +633,16 @@ EOF
     9000/8??:4.3bsd:*:*)
 	echo hppa1.0-hp-bsd
 	exit 0 ;;
+    *9??*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit 0 ;;
     hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
 	echo hppa1.1-hp-osf
 	exit 0 ;;
     hp8??:OSF1:*:*)
 	echo hppa1.0-hp-osf
 	exit 0 ;;
-    i?86:OSF1:*:*)
+    i*86:OSF1:*:*)
 	if [ -x /usr/sbin/sysversion ] ; then
 	    echo ${UNAME_MACHINE}-unknown-osf1mk
 	else
@@ -329,6 +652,9 @@ EOF
     parisc*:Lites*:*:*)
 	echo hppa1.1-hp-lites
 	exit 0 ;;
+    hppa*:OpenBSD:*:*)
+	echo hppa-unknown-openbsd
+	exit 0 ;;
     C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
 	echo c1-convex-bsd
         exit 0 ;;
@@ -359,104 +685,286 @@ EOF
 	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
 	exit 0 ;;
     CRAY*TS:*:*:*)
-	echo t90-cray-unicos${UNAME_RELEASE}
+	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit 0 ;;
+    CRAY*T3D:*:*:*)
+	echo alpha-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit 0 ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit 0 ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
 	exit 0 ;;
     CRAY-2:*:*:*)
 	echo cray2-cray-unicos
         exit 0 ;;
-    F300:UNIX_System_V:*:*)
-        FUJITSU_SYS=`uname -p | tr [A-Z] [a-z] | sed -e 's/\///'`
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
         FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
-        echo "f300-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
         exit 0 ;;
-    F301:UNIX_System_V:*:*)
-       echo f301-fujitsu-uxpv`echo $UNAME_RELEASE | sed 's/ .*//'`
-       exit 0 ;;
-    hp3[0-9][05]:NetBSD:*:*)
-	echo m68k-hp-netbsd${UNAME_RELEASE}
+    hp300:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
 	exit 0 ;;
-    hp3[0-9][05]:OpenBSD:*:*)
-	echo m68k-hp-openbsd${UNAME_RELEASE}
-	exit 0 ;;
-    i?86:BSD/386:*:* | *:BSD/OS:*:*)
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
 	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
 	exit 0 ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi${UNAME_RELEASE}
+	exit 0 ;;
+    *:BSD/OS:*:*)
+	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+	exit 0 ;;
     *:FreeBSD:*:*)
 	echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
 	exit 0 ;;
-    *:NetBSD:*:*)
-	echo ${UNAME_MACHINE}-unknown-netbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
-	exit 0 ;;
     *:OpenBSD:*:*)
 	echo ${UNAME_MACHINE}-unknown-openbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
 	exit 0 ;;
     i*:CYGWIN*:*)
-	echo i386-pc-cygwin32
+	echo ${UNAME_MACHINE}-pc-cygwin
+	exit 0 ;;
+    i*:MINGW*:*)
+	echo ${UNAME_MACHINE}-pc-mingw32
+	exit 0 ;;
+    i*:PW*:*)
+	echo ${UNAME_MACHINE}-pc-pw32
+	exit 0 ;;
+    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+	# UNAME_MACHINE based on the output of uname instead of i386?
+	echo i386-pc-interix
+	exit 0 ;;
+    i*:UWIN*:*)
+	echo ${UNAME_MACHINE}-pc-uwin
 	exit 0 ;;
     p*:CYGWIN*:*)
-	echo powerpcle-unknown-cygwin32
+	echo powerpcle-unknown-cygwin
 	exit 0 ;;
     prep*:SunOS:5.*:*)
 	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit 0 ;;
     *:GNU:*:*)
-	echo `echo ${UNAME_MACHINE}|sed -e 's,/.*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
 	exit 0 ;;
-    *:Linux:*:*)
-	# The BFD linker knows what the default object file format is, so
-	# first see if it will tell us.
-	ld_help_string=`ld --help 2>&1`
-	if echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations: elf_i.86"; then
-	  echo "${UNAME_MACHINE}-pc-linux-gnu" ; exit 0
-	elif echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations: i.86linux"; then
-	  echo "${UNAME_MACHINE}-pc-linux-gnuaout" ; exit 0
-	elif echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations: i.86coff"; then
-	  echo "${UNAME_MACHINE}-pc-linux-gnucoff" ; exit 0
-	elif echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations: m68kelf"; then
-	  echo "${UNAME_MACHINE}-unknown-linux-gnu" ; exit 0
-	elif echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations: m68klinux"; then
-	  echo "${UNAME_MACHINE}-unknown-linux-gnuaout" ; exit 0
-	elif echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations: elf32ppc"; then
-	  echo "powerpc-unknown-linux-gnu" ; exit 0
-	elif test "${UNAME_MACHINE}" = "alpha" ; then
-	  echo alpha-unknown-linux-gnu ; exit 0
-	elif test "${UNAME_MACHINE}" = "sparc" ; then
-	  echo sparc-unknown-linux-gnu ; exit 0
-	else
-	  # Either a pre-BFD a.out linker (linux-gnuoldld) or one that does not give us
-	  # useful --help.  Gcc wants to distinguish between linux-gnuoldld and linux-gnuaout.
-	  test ! -d /usr/lib/ldscripts/. \
-	    && echo "${UNAME_MACHINE}-pc-linux-gnuoldld" && exit 0
-	  # Determine whether the default compiler is a.out or elf
-	  cat >dummy.c <<EOF
+    i*86:Minix:*:*)
+	echo ${UNAME_MACHINE}-pc-minix
+	exit 0 ;;
+    arm*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit 0 ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux
+	exit 0 ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit 0 ;;
+    mips:Linux:*:*)
+	cat >$dummy.c <<EOF
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+int main (int argc, char *argv[]) {
+#else
+int main (argc, argv) int argc; char *argv[]; {
+#endif
+#ifdef __MIPSEB__
+  printf ("%s-unknown-linux-gnu\n", argv[1]);
+#endif
+#ifdef __MIPSEL__
+  printf ("%sel-unknown-linux-gnu\n", argv[1]);
+#endif
+  return 0;
+}
+EOF
+	$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy "${UNAME_MACHINE}" && rm -f $dummy.c $dummy && exit 0
+	rm -f $dummy.c $dummy
+	;;
+    ppc:Linux:*:*)
+	# Determine Lib Version
+	cat >$dummy.c <<EOF
+#include <features.h>
+#if defined(__GLIBC__)
+extern char __libc_version[];
+extern char __libc_release[];
+#endif
 main(argc, argv)
-int argc;
-char *argv[];
+     int argc;
+     char *argv[];
 {
+#if defined(__GLIBC__)
+  printf("%s %s\n", __libc_version, __libc_release);
+#else
+  printf("unknown\n");
+#endif
+  return 0;
+}
+EOF
+	LIBC=""
+	$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null
+	if test "$?" = 0 ; then
+		./$dummy | grep 1\.99 > /dev/null
+		if test "$?" = 0 ; then LIBC="libc1" ; fi
+	fi
+	rm -f $dummy.c $dummy
+	echo powerpc-unknown-linux-gnu${LIBC}
+	exit 0 ;;
+    alpha:Linux:*:*)
+	cat <<EOF >$dummy.s
+	  .data
+	  \$Lformat:
+		.byte 37,100,45,37,120,10,0	# "%d-%x\n"
+	   .text
+		.globl main
+		.align 4
+		.ent main
+	    main:
+		.frame \$30,16,\$26,0
+		ldgp \$29,0(\$27)
+		.prologue 1
+		.long 0x47e03d80 # implver \$0
+		lda \$2,-1
+		.long 0x47e20c21 # amask \$2,\$1
+		lda \$16,\$Lformat
+		mov \$0,\$17
+		not \$1,\$18
+		jsr \$26,printf
+		ldgp \$29,0(\$26)
+		mov 0,\$16
+		jsr \$26,exit
+		.end main
+EOF
+	LIBC=""
+	$CC_FOR_BUILD $dummy.s -o $dummy 2>/dev/null
+	if test "$?" = 0 ; then
+		case `./$dummy` in
+		0-0)	UNAME_MACHINE="alpha" ;;
+		1-0)	UNAME_MACHINE="alphaev5" ;;
+		1-1)    UNAME_MACHINE="alphaev56" ;;
+		1-101)	UNAME_MACHINE="alphapca56" ;;
+		2-303)	UNAME_MACHINE="alphaev6" ;;
+		2-307)	UNAME_MACHINE="alphaev67" ;;
+		esac
+		objdump --private-headers $dummy | \
+		  grep ld.so.1 > /dev/null
+		if test "$?" = 0 ; then
+			LIBC="libc1"
+		fi
+	fi
+	rm -f $dummy.s $dummy
+	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	exit 0 ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
+	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
+	  *)    echo hppa-unknown-linux-gnu ;;
+	esac
+	exit 0 ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-gnu
+	exit 0 ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo ${UNAME_MACHINE}-ibm-linux
+	exit 0 ;;
+    sh*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit 0 ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit 0 ;;
+    x86_64:Linux:*:*)
+	echo x86_64-unknown-linux-gnu
+	exit 0 ;;
+    i*86:Linux:*:*)
+	# The BFD linker knows what the default object file format is, so
+	# first see if it will tell us. cd to the root directory to prevent
+	# problems with other programs or directories called `ld' in the path.
+	ld_supported_targets=`cd /; ld --help 2>&1 \
+			 | sed -ne '/supported targets:/!d
+				    s/[ 	][ 	]*/ /g
+				    s/.*supported targets: *//
+				    s/ .*//
+				    p'`
+        case "$ld_supported_targets" in
+	  elf32-i386)
+		TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
+		;;
+	  a.out-i386-linux)
+		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
+		exit 0 ;;		
+	  coff-i386)
+		echo "${UNAME_MACHINE}-pc-linux-gnucoff"
+		exit 0 ;;
+	  "")
+		# Either a pre-BFD a.out linker (linux-gnuoldld) or
+		# one that does not give us useful --help.
+		echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
+		exit 0 ;;
+	esac
+	# Determine whether the default compiler is a.out or elf
+	cat >$dummy.c <<EOF
+#include <features.h>
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
 #ifdef __ELF__
-  printf ("%s-pc-linux-gnu\n", argv[1]);
+# ifdef __GLIBC__
+#  if __GLIBC__ >= 2
+    printf ("%s-pc-linux-gnu\n", argv[1]);
+#  else
+    printf ("%s-pc-linux-gnulibc1\n", argv[1]);
+#  endif
+# else
+   printf ("%s-pc-linux-gnulibc1\n", argv[1]);
+# endif
 #else
   printf ("%s-pc-linux-gnuaout\n", argv[1]);
 #endif
   return 0;
 }
 EOF
-	  ${CC-cc} dummy.c -o dummy 2>/dev/null && ./dummy "${UNAME_MACHINE}" && rm dummy.c dummy && exit 0
-	  rm -f dummy.c dummy
-	fi ;;
+	$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy "${UNAME_MACHINE}" && rm -f $dummy.c $dummy && exit 0
+	rm -f $dummy.c $dummy
+	test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0
+	;;
 # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.  earlier versions
 # are messed up and put the nodename in both sysname and nodename.
-    i?86:DYNIX/ptx:4*:*)
+    i*86:DYNIX/ptx:4*:*)
 	echo i386-sequent-sysv4
 	exit 0 ;;
-    i?86:*:4.*:* | i?86:SYSTEM_V:4.*:*)
+    i*86:UNIX_SV:4.2MP:2.*)
+        # Unixware is an offshoot of SVR4, but it has its own version
+        # number series starting with 2...
+        # I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+        # Use sysv4.2uw... so that sysv4* matches it.
+	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+	exit 0 ;;
+    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
 	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
-		echo ${UNAME_MACHINE}-univel-sysv${UNAME_RELEASE}
+		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
 	else
-		echo ${UNAME_MACHINE}-pc-sysv${UNAME_RELEASE}
+		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
 	fi
 	exit 0 ;;
-    i?86:*:3.2:*)
+    i*86:*:5:7*)
+        # Fixed at (any) Pentium or better
+        UNAME_MACHINE=i586
+        if [ ${UNAME_SYSTEM} = "UnixWare" ] ; then
+	    echo ${UNAME_MACHINE}-sco-sysv${UNAME_RELEASE}uw${UNAME_VERSION}
+	else
+	    echo ${UNAME_MACHINE}-pc-sysv${UNAME_RELEASE}
+	fi
+	exit 0 ;;
+    i*86:*:3.2:*)
 	if test -f /usr/options/cb.name; then
 		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
 		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
@@ -465,11 +973,24 @@ EOF
 		(/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486
 		(/bin/uname -X|egrep '^Machine.*Pentium' >/dev/null) \
 			&& UNAME_MACHINE=i586
+		(/bin/uname -X|egrep '^Machine.*Pent ?II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|egrep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
 		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
 	else
 		echo ${UNAME_MACHINE}-pc-sysv32
 	fi
 	exit 0 ;;
+    i*86:*DOS:*:*)
+	echo ${UNAME_MACHINE}-pc-msdosdjgpp
+	exit 0 ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+        # uname -m prints for DJGPP always 'pc', but it prints nothing about
+        # the processor, so we play safe by assuming i386.
+	echo i386-pc-msdosdjgpp
+        exit 0 ;;
     Intel:Mach:3*:*)
 	echo i386-pc-mach3
 	exit 0 ;;
@@ -489,7 +1010,7 @@ EOF
 	exit 0 ;;
     M68*:*:R3V[567]*:*)
 	test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;;
-    3[34]??:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 4850:*:4.0:3.0)
+    3[34]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 4850:*:4.0:3.0)
 	OS_REL=''
 	test -r /etc/.relid \
 	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
@@ -500,24 +1021,30 @@ EOF
     3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
         /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
           && echo i486-ncr-sysv4 && exit 0 ;;
-    m68*:LynxOS:2.*:*)
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
 	echo m68k-unknown-lynxos${UNAME_RELEASE}
 	exit 0 ;;
     mc68030:UNIX_System_V:4.*:*)
 	echo m68k-atari-sysv4
 	exit 0 ;;
-    i?86:LynxOS:2.*:*)
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
 	echo i386-unknown-lynxos${UNAME_RELEASE}
 	exit 0 ;;
     TSUNAMI:LynxOS:2.*:*)
 	echo sparc-unknown-lynxos${UNAME_RELEASE}
 	exit 0 ;;
-    rs6000:LynxOS:2.*:* | PowerPC:LynxOS:2.*:*)
+    rs6000:LynxOS:2.*:*)
 	echo rs6000-unknown-lynxos${UNAME_RELEASE}
 	exit 0 ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
+	echo powerpc-unknown-lynxos${UNAME_RELEASE}
+	exit 0 ;;
     SM[BE]S:UNIX_SV:*:*)
 	echo mips-dde-sysv${UNAME_RELEASE}
 	exit 0 ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit 0 ;;
     RM*:SINIX-*:*:*)
 	echo mips-sni-sysv4
 	exit 0 ;;
@@ -529,6 +1056,10 @@ EOF
 		echo ns32k-sni-sysv
 	fi
 	exit 0 ;;
+    PENTIUM:CPunix:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+                           # says <Richard.M.Bartel@ccMail.Census.GOV>
+        echo i586-unisys-sysv4
+        exit 0 ;;
     *:UNIX_System_V:4*:FTX*)
 	# From Gerald Hewes <hewes@openmarket.com>.
 	# How about differentiating between stratus architectures? -djm
@@ -541,23 +1072,101 @@ EOF
     mc68*:A/UX:*:*)
 	echo m68k-apple-aux${UNAME_RELEASE}
 	exit 0 ;;
-    R3000:*System_V*:*:* | R4000:UNIX_SYSV:*:*)
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit 0 ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
 	if [ -d /usr/nec ]; then
 	        echo mips-nec-sysv${UNAME_RELEASE}
 	else
 	        echo mips-unknown-sysv${UNAME_RELEASE}
 	fi
         exit 0 ;;
-    PENTIUM:CPunix:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
-                           # says <Richard.M.Bartel@ccMail.Census.GOV>
-        echo i586-unisys-sysv4
-        exit 0 ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit 0 ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit 0 ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit 0 ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux${UNAME_RELEASE}
+	exit 0 ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux${UNAME_RELEASE}
+	exit 0 ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody${UNAME_RELEASE}
+	exit 0 ;;
+    *:Rhapsody:*:*)
+	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+	exit 0 ;;
+    *:Darwin:*:*)
+	echo `uname -p`-apple-darwin${UNAME_RELEASE}
+	exit 0 ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	if test "${UNAME_MACHINE}" = "x86pc"; then
+		UNAME_MACHINE=pc
+	fi
+	echo `uname -p`-${UNAME_MACHINE}-nto-qnx
+	exit 0 ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit 0 ;;
+    NSR-[KW]:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk${UNAME_RELEASE}
+	exit 0 ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit 0 ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit 0 ;;
+    DS/*:UNIX_System_V:*:*)
+	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+	exit 0 ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = "386"; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo ${UNAME_MACHINE}-unknown-plan9
+	exit 0 ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo ${UNAME_MACHINE}-pc-os2-emx
+	exit 0 ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit 0 ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit 0 ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit 0 ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit 0 ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit 0 ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit 0 ;;
 esac
 
 #echo '(No uname command or uname output not recognized.)' 1>&2
 #echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
 
-cat >dummy.c <<EOF
+cat >$dummy.c <<EOF
 #ifdef _SEQUENT_
 # include <sys/types.h>
 # include <sys/utsname.h>
@@ -595,7 +1204,10 @@ main ()
 #endif
   int version;
   version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
-  printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  if (version < 4)
+    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  else
+    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
   exit (0);
 #endif
 
@@ -640,11 +1252,24 @@ main ()
 #endif
 
 #if defined (vax)
-#if !defined (ultrix)
-  printf ("vax-dec-bsd\n"); exit (0);
-#else
-  printf ("vax-dec-ultrix\n"); exit (0);
-#endif
+# if !defined (ultrix)
+#  include <sys/param.h>
+#  if defined (BSD)
+#   if BSD == 43
+      printf ("vax-dec-bsd4.3\n"); exit (0);
+#   else
+#    if BSD == 199006
+      printf ("vax-dec-bsd4.3reno\n"); exit (0);
+#    else
+      printf ("vax-dec-bsd\n"); exit (0);
+#    endif
+#   endif
+#  else
+    printf ("vax-dec-bsd\n"); exit (0);
+#  endif
+# else
+    printf ("vax-dec-ultrix\n"); exit (0);
+# endif
 #endif
 
 #if defined (alliant) && defined (i860)
@@ -655,8 +1280,8 @@ main ()
 }
 EOF
 
-${CC-cc} dummy.c -o dummy 2>/dev/null && ./dummy && rm dummy.c dummy && exit 0
-rm -f dummy.c dummy
+$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy && rm -f $dummy.c $dummy && exit 0
+rm -f $dummy.c $dummy
 
 # Apollos put the system type in the environment.
 
@@ -688,6 +1313,48 @@ then
     esac
 fi
 
-#echo '(Unable to guess system type)' 1>&2
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+    ftp://ftp.gnu.org/pub/gnu/config/
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
 
 exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/config.sub b/config.sub
index 043252494..c00604f94 100644
--- a/config.sub
+++ b/config.sub
@@ -1,6 +1,10 @@
 #! /bin/sh
-# Configuration validation subroutine script, version 1.1.
-#   Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+# Configuration validation subroutine script.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+#   Free Software Foundation, Inc.
+
+timestamp='2001-05-30'
+
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
 # can handle that machine.  It does not imply ALL GNU software can.
@@ -25,6 +29,8 @@
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.
 
+# Please send patches to <config-patches@gnu.org>.
+#
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
 # If it is invalid, we print an error message on stderr and exit with code 1.
@@ -45,30 +51,73 @@
 #	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
 # It is wrong to echo any other type of specification.
 
-if [ x$1 = x ]
-then
-	echo Configuration name missing. 1>&2
-	echo "Usage: $0 CPU-MFR-OPSYS" 1>&2
-	echo "or     $0 ALIAS" 1>&2
-	echo where ALIAS is a recognized configuration type. 1>&2
-	exit 1
-fi
+me=`echo "$0" | sed -e 's,.*/,,'`
 
-# First pass through any local machine types.
-case $1 in
-	*local*)
-		echo $1
-		exit 0
-		;;
-	*)
-	;;
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit 0 ;;
+    --version | -v )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit 0;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
 esac
 
 # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  linux-gnu*)
+  nto-qnx* | linux-gnu* | storm-chaos* | os2-emx* | windows32-*)
     os=-$maybe_os
     basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
@@ -94,15 +143,25 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple)
+	-apple | -axis)
 		os=
 		basic_machine=$1
 		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
 	-hiux*)
 		os=-hiuxwe2
 		;;
 	-sco5)
-		os=sco3.2v5
+		os=-sco3.2v5
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco4)
@@ -121,6 +180,9 @@ case $os in
 		os=-sco3.2v2
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
+	-udk*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
 	-isc)
 		os=-isc2.2
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
@@ -143,25 +205,50 @@ case $os in
 	-psos*)
 		os=-psos
 		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
 esac
 
 # Decode aliases for certain CPU-COMPANY combinations.
 case $basic_machine in
 	# Recognize the basic CPU types without company name.
 	# Some are omitted here because they have special meanings below.
-	tahoe | i860 | m68k | m68000 | m88k | ns32k | arm \
-		| arme[lb] | pyramid \
-		| tron | a29k | 580 | i960 | h8300 | hppa | hppa1.0 | hppa1.1 \
-		| alpha | we32k | ns16k | clipper | i370 | sh \
-		| powerpc | powerpcle | 1750a | dsp16xx | mips64 | mipsel \
-		| pdp11 | mips64el | mips64orion | mips64orionel \
-		| sparc | sparclet | sparclite | sparc64)
+	tahoe | i860 | ia64 | m32r | m68k | m68000 | m88k | ns32k | arc \
+	        | arm | arme[lb] | arm[bl]e | armv[2345] | armv[345][lb] | strongarm | xscale \
+		| pyramid | mn10200 | mn10300 | tron | a29k \
+		| 580 | i960 | h8300 \
+		| x86 | ppcbe | mipsbe | mipsle | shbe | shle \
+		| hppa | hppa1.0 | hppa1.1 | hppa2.0 | hppa2.0w | hppa2.0n \
+		| hppa64 \
+		| alpha | alphaev[4-8] | alphaev56 | alphapca5[67] \
+		| alphaev6[78] \
+		| we32k | ns16k | clipper | i370 | sh | sh[34] \
+		| powerpc | powerpcle \
+		| 1750a | dsp16xx | pdp10 | pdp11 \
+		| mips16 | mips64 | mipsel | mips64el \
+		| mips64orion | mips64orionel | mipstx39 | mipstx39el \
+		| mips64vr4300 | mips64vr4300el | mips64vr4100 | mips64vr4100el \
+		| mips64vr5000 | miprs64vr5000el | mcore | s390 | s390x \
+		| sparc | sparclet | sparclite | sparc64 | sparcv9 | sparcv9b \
+		| v850 | c4x \
+		| thumb | d10v | d30v | fr30 | avr | openrisc | tic80 \
+		| pj | pjl | h8500 | z8k)
 		basic_machine=$basic_machine-unknown
 		;;
+	m6811 | m68hc11 | m6812 | m68hc12)
+		# Motorola 68HC11/12.
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+		;;
+
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
-	i[3456]86)
+	i*86 | x86_64)
 	  basic_machine=$basic_machine-pc
 	  ;;
 	# Object if more than one company name word.
@@ -170,23 +257,52 @@ case $basic_machine in
 		exit 1
 		;;
 	# Recognize the basic CPU types with company name.
-	vax-* | tahoe-* | i[3456]86-* | i860-* | m68k-* | m68000-* | m88k-* \
-	      | sparc-* | ns32k-* | fx80-* | arm-* | c[123]* \
-	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* | power-* \
-	      | none-* | 580-* | cray2-* | h8300-* | i960-* | xmp-* | ymp-* \
-	      | hppa-* | hppa1.0-* | hppa1.1-* | alpha-* | we32k-* | cydra-* | ns16k-* \
-	      | pn-* | np1-* | xps100-* | clipper-* | orion-* | sparclite-* \
-	      | pdp11-* | sh-* | powerpc-* | powerpcle-* | sparc64-* | mips64-* | mipsel-* \
-	      | mips64el-* | mips64orion-* | mips64orionel-* | f301-*)
+	# FIXME: clean up the formatting here.
+	vax-* | tahoe-* | i*86-* | i860-* | ia64-* | m32r-* | m68k-* | m68000-* \
+	      | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | c[123]* \
+	      | arm-*  | armbe-* | armle-* | armv*-* | strongarm-* | xscale-* \
+	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
+	      | power-* | none-* | 580-* | cray2-* | h8300-* | h8500-* | i960-* \
+	      | xmp-* | ymp-* \
+	      | x86-* | ppcbe-* | mipsbe-* | mipsle-* | shbe-* | shle-* \
+	      | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* | hppa2.0w-* \
+	      | hppa2.0n-* | hppa64-* \
+	      | alpha-* | alphaev[4-8]-* | alphaev56-* | alphapca5[67]-* \
+	      | alphaev6[78]-* \
+	      | we32k-* | cydra-* | ns16k-* | pn-* | np1-* | xps100-* \
+	      | clipper-* | orion-* \
+	      | sparclite-* | pdp10-* | pdp11-* | sh-* | sh[34]-* | sh[34]eb-* \
+	      | powerpc-* | powerpcle-* | sparc64-* | sparcv9-* | sparcv9b-* | sparc86x-* \
+	      | mips16-* | mips64-* | mipsel-* \
+	      | mips64el-* | mips64orion-* | mips64orionel-* \
+	      | mips64vr4100-* | mips64vr4100el-* | mips64vr4300-* | mips64vr4300el-* \
+	      | mipstx39-* | mipstx39el-* | mcore-* \
+	      | f30[01]-* | f700-* | s390-* | s390x-* | sv1-* | t3e-* \
+	      | [cjt]90-* \
+	      | m88110-* | m680[01234]0-* | m683?2-* | m68360-* | z8k-* | d10v-* \
+	      | thumb-* | v850-* | d30v-* | tic30-* | tic80-* | c30-* | fr30-* \
+	      | bs2000-* | tic54x-* | c54x-* | x86_64-* | pj-* | pjl-*)
 		;;
 	# Recognize the various machine names and aliases which stand
 	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-unknown
+		os=-bsd
+		;;
 	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
 		basic_machine=m68000-att
 		;;
 	3b*)
 		basic_machine=we32k-att
 		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
 	alliant | fx80)
 		basic_machine=fx80-alliant
 		;;
@@ -202,20 +318,24 @@ case $basic_machine in
 		os=-sysv
 		;;
 	amiga | amiga-*)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		;;
-	amigados)
-		basic_machine=m68k-cbm
-		os=-amigados
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
 		;;
 	amigaunix | amix)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		os=-sysv4
 		;;
 	apollo68)
 		basic_machine=m68k-apollo
 		os=-sysv
 		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -252,13 +372,16 @@ case $basic_machine in
 		basic_machine=cray2-cray
 		os=-unicos
 		;;
-	[ctj]90-cray)
-		basic_machine=c90-cray
+	[cjt]90)
+		basic_machine=${basic_machine}-cray
 		os=-unicos
 		;;
 	crds | unos)
 		basic_machine=m68k-crds
 		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
 	da30 | da30-*)
 		basic_machine=m68k-da30
 		;;
@@ -292,6 +415,10 @@ case $basic_machine in
 	encore | umax | mmax)
 		basic_machine=ns32k-encore
 		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
 	fx2800)
 		basic_machine=i860-alliant
 		;;
@@ -302,6 +429,10 @@ case $basic_machine in
 		basic_machine=tron-gmicro
 		os=-sysv
 		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
 	h3050r* | hiux*)
 		basic_machine=hppa1.1-hitachi
 		os=-hiuxwe2
@@ -310,6 +441,14 @@ case $basic_machine in
 		basic_machine=h8300-hitachi
 		os=-hms
 		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
 	harris)
 		basic_machine=m88k-harris
 		os=-sysv3
@@ -325,13 +464,30 @@ case $basic_machine in
 		basic_machine=m68k-hp
 		os=-hpux
 		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
 	hp9k2[0-9][0-9] | hp9k31[0-9])
 		basic_machine=m68000-hp
 		;;
 	hp9k3[2-9][0-9])
 		basic_machine=m68k-hp
 		;;
-	hp9k7[0-9][0-9] | hp7[0-9][0-9] | hp9k8[0-9]7 | hp8[0-9]7)
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
 		basic_machine=hppa1.1-hp
 		;;
 	hp9k8[0-9][0-9] | hp8[0-9][0-9])
@@ -340,27 +496,42 @@ case $basic_machine in
 	hppa-next)
 		os=-nextstep3
 		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
 	i370-ibm* | ibm*)
 		basic_machine=i370-ibm
-		os=-mvs
 		;;
 # I'm not sure what "Sysv32" means.  Should this be sysv3.2?
-	i[3456]86v32)
+	i*86v32)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
 		;;
-	i[3456]86v4*)
+	i*86v4*)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv4
 		;;
-	i[3456]86v)
+	i*86v)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv
 		;;
-	i[3456]86sol2)
+	i*86sol2)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-solaris2
 		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	i386-vsta | vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
 	iris | iris4d)
 		basic_machine=mips-sgi
 		case $os in
@@ -386,19 +557,59 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
+	mingw32)
+		basic_machine=i386-pc
+		os=-mingw32
+		;;
 	miniframe)
 		basic_machine=m68000-convergent
 		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mipsel*-linux*)
+		basic_machine=mipsel-unknown
+		os=-linux-gnu
+		;;
+	mips*-linux*)
+		basic_machine=mips-unknown
+		os=-linux-gnu
+		;;
 	mips3*-*)
 		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
 		;;
 	mips3*)
 		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
 		;;
+	mmix*)
+		basic_machine=mmix-knuth
+		os=-mmixware
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
 		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
 	news | news700 | news800 | news900)
 		basic_machine=m68k-sony
 		os=-newsos
@@ -411,6 +622,10 @@ case $basic_machine in
 		basic_machine=mips-sony
 		os=-newsos
 		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
 	next | m*-next )
 		basic_machine=m68k-next
 		case $os in
@@ -436,9 +651,32 @@ case $basic_machine in
 		basic_machine=i960-intel
 		os=-nindy
 		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
 	np1)
 		basic_machine=np1-gould
 		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
 	pa-hitachi)
 		basic_machine=hppa1.1-hitachi
 		os=-hiuxwe2
@@ -456,30 +694,28 @@ case $basic_machine in
         pc532 | pc532-*)
 		basic_machine=ns32k-pc532
 		;;
-	pentium | p5)
-		basic_machine=i586-intel
+	pentium | p5 | k5 | k6 | nexgen)
+		basic_machine=i586-pc
 		;;
-	pentiumpro | p6)
-		basic_machine=i686-intel
+	pentiumpro | p6 | 6x86 | athlon)
+		basic_machine=i686-pc
 		;;
-	pentium-* | p5-*)
+	pentiumii | pentium2)
+		basic_machine=i686-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-*)
 		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	pentiumpro-* | p6-*)
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
 		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	k5)
-		# We don't have specific support for AMD's K5 yet, so just call it a Pentium
-		basic_machine=i586-amd
-		;;
-	nexen)
-		# We don't have specific support for Nexgen yet, so just call it a Pentium
-		basic_machine=i586-nexgen
+	pentiumii-* | pentium2-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	pn)
 		basic_machine=pn-gould
 		;;
-	power)	basic_machine=rs6000-ibm
+	power)	basic_machine=power-ibm
 		;;
 	ppc)	basic_machine=powerpc-unknown
 	        ;;
@@ -494,12 +730,24 @@ case $basic_machine in
 	ps2)
 		basic_machine=i386-ibm
 		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
 	rm[46]00)
 		basic_machine=mips-siemens
 		;;
 	rtpc | rtpc-*)
 		basic_machine=romp-ibm
 		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
 	sequent)
 		basic_machine=i386-sequent
 		;;
@@ -507,6 +755,10 @@ case $basic_machine in
 		basic_machine=sh-hitachi
 		os=-hms
 		;;
+	sparclite-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
 	sps7)
 		basic_machine=m68k-bull
 		os=-sysv2
@@ -514,6 +766,13 @@ case $basic_machine in
 	spur)
 		basic_machine=spur-unknown
 		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
 	sun2)
 		basic_machine=m68000-sun
 		;;
@@ -554,10 +813,28 @@ case $basic_machine in
 	sun386 | sun386i | roadrunner)
 		basic_machine=i386-sun
 		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
 	symmetry)
 		basic_machine=i386-sequent
 		os=-dynix
 		;;
+	t3e)
+		basic_machine=t3e-cray
+		os=-unicos
+		;;
+	tic54x | c54x*)
+		basic_machine=tic54x-unknown
+		os=-coff
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
 	tower | tower-32)
 		basic_machine=m68k-ncr
 		;;
@@ -569,6 +846,10 @@ case $basic_machine in
 		basic_machine=a29k-nyu
 		os=-sym1
 		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
 	vaxv)
 		basic_machine=vax-dec
 		os=-sysv
@@ -577,7 +858,7 @@ case $basic_machine in
 		basic_machine=vax-dec
 		os=-vms
 		;;
-       vpp*|vx|vx-*)
+	vpp*|vx|vx-*)
                basic_machine=f301-fujitsu
                ;;
 	vxworks960)
@@ -592,6 +873,18 @@ case $basic_machine in
 		basic_machine=a29k-wrs
 		os=-vxworks
 		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	windows32)
+		basic_machine=i386-pc
+		os=-windows32-msvcrt
+		;;
 	xmp)
 		basic_machine=xmp-cray
 		os=-unicos
@@ -599,6 +892,10 @@ case $basic_machine in
         xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
+	z8k-*-coff)
+		basic_machine=z8k-unknown
+		os=-sim
+		;;
 	none)
 		basic_machine=none-none
 		os=-none
@@ -606,8 +903,21 @@ case $basic_machine in
 
 # Here we handle the default manufacturer of certain CPU types.  It is in
 # some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
 	mips)
-		basic_machine=mips-mips
+		if [ x$os = x-linux-gnu ]; then
+			basic_machine=mips-unknown
+		else
+			basic_machine=mips-mips
+		fi
 		;;
 	romp)
 		basic_machine=romp-ibm
@@ -618,13 +928,20 @@ case $basic_machine in
 	vax)
 		basic_machine=vax-dec
 		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
 	pdp11)
 		basic_machine=pdp11-dec
 		;;
 	we32k)
 		basic_machine=we32k-att
 		;;
-	sparc)
+	sh3 | sh4)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv9 | sparcv9b)
 		basic_machine=sparc-sun
 		;;
         cydra)
@@ -636,6 +953,19 @@ case $basic_machine in
 	orion105)
 		basic_machine=clipper-highlevel
 		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	c4x*)
+		basic_machine=c4x-none
+		os=-coff
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
 	*)
 		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
 		exit 1
@@ -668,9 +998,12 @@ case $os in
 	-solaris)
 		os=-solaris2
 		;;
-	-unixware* | svr4*)
+	-svr4*)
 		os=-sysv4
 		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
 	-gnu/linux*)
 		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
 		;;
@@ -681,17 +1014,40 @@ case $os in
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
 	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
-	      | -amigados* | -msdos* | -newsos* | -unicos* | -aof* | -aos* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -netbsd* | -openbsd* | -freebsd* | -riscix* \
-	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* \
+	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-	      | -cygwin32* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -linux-gnu* | -uxpv*)
+	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* | -os2*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto*)
+		os=-nto-qnx
+		;;
+	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo $os | sed -e 's|mac|macos|'`
+		;;
 	-linux*)
 		os=`echo $os | sed -e 's|linux|linux-gnu|'`
 		;;
@@ -701,6 +1057,12 @@ case $os in
 	-sunos6*)
 		os=`echo $os | sed -e 's|sunos6|solaris3|'`
 		;;
+	-opened*)
+		os=-openedition
+		;;
+	-wince*)
+		os=-wince
+		;;
 	-osfrose*)
 		os=-osfrose
 		;;
@@ -716,12 +1078,18 @@ case $os in
 	-acis*)
 		os=-aos
 		;;
+	-386bsd)
+		os=-bsd
+		;;
 	-ctix* | -uts*)
 		os=-sysv
 		;;
 	-ns2 )
 	        os=-nextstep2
 		;;
+	-nsk*)
+		os=-nsk
+		;;
 	# Preserve the version number of sinix5.
 	-sinix5.*)
 		os=`echo $os | sed -e 's|sinix|sysv|'`
@@ -747,9 +1115,18 @@ case $os in
 	# This must come after -sysvr4.
 	-sysv*)
 		;;
+	-ose*)
+		os=-ose
+		;;
+	-es1800*)
+		os=-ose
+		;;
 	-xenix)
 		os=-xenix
 		;;
+        -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+	        os=-mint
+		;;
 	-none)
 		;;
 	*)
@@ -775,9 +1152,15 @@ case $basic_machine in
 	*-acorn)
 		os=-riscix1.2
 		;;
+	arm*-rebel)
+		os=-linux
+		;;
 	arm*-semi)
 		os=-aout
 		;;
+	pdp10-*)
+		os=-tops20
+		;;
         pdp11-*)
 		os=-none
 		;;
@@ -796,15 +1179,36 @@ case $basic_machine in
 		# default.
 		# os=-sunos4
 		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
 	*-tti)	# must be before sparc entry or we get the wrong os.
 		os=-sysv3
 		;;
 	sparc-* | *-sun)
 		os=-sunos4.1.1
 		;;
+	*-be)
+		os=-beos
+		;;
 	*-ibm)
 		os=-aix
 		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
 	*-hp)
 		os=-hpux
 		;;
@@ -815,7 +1219,7 @@ case $basic_machine in
 		os=-sysv
 		;;
 	*-cbm)
-		os=-amigados
+		os=-amigaos
 		;;
 	*-dg)
 		os=-dgux
@@ -865,9 +1269,21 @@ case $basic_machine in
 	*-masscomp)
 		os=-rtu
 		;;
-	f301-fujitsu)
+	f30[01]-fujitsu | f700-fujitsu)
 		os=-uxpv
 		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
 	*)
 		os=-none
 		;;
@@ -889,9 +1305,15 @@ case $basic_machine in
 			-aix*)
 				vendor=ibm
 				;;
+			-beos*)
+				vendor=be
+				;;
 			-hpux*)
 				vendor=hp
 				;;
+			-mpeix*)
+				vendor=hp
+				;;
 			-hiux*)
 				vendor=hitachi
 				;;
@@ -907,7 +1329,7 @@ case $basic_machine in
 			-genix*)
 				vendor=ns
 				;;
-			-mvs*)
+			-mvs* | -opened*)
 				vendor=ibm
 				;;
 			-ptx*)
@@ -919,9 +1341,26 @@ case $basic_machine in
 			-aux*)
 				vendor=apple
 				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
 		esac
 		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
 		;;
 esac
 
 echo $basic_machine$os
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/configure b/configure
index 7ecf5c568..b2c6414f9 100755
--- a/configure
+++ b/configure
@@ -1,46 +1,145 @@
 #! /bin/sh
-
 # Guess values for system-dependent variables and create Makefiles.
-# Generated automatically using autoconf version 2.13 
-# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
+# Generated by Autoconf 2.50.
 #
+# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+# Free Software Foundation, Inc.
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
 
-# Defaults:
-ac_help=
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+  set -o posix
+fi
+
+# Name of the executable.
+as_me=`echo "$0" |sed 's,.*[\\/],,'`
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+  # We could just check for DJGPP; but this test a) works b) is more generic
+  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+  if test -f conf$$.exe; then
+    # Don't use ln at all; we don't have any links
+    as_ln_s='cp -p'
+  else
+    as_ln_s='ln -s'
+  fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s=ln
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ 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
+
+# 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.
+as_nl='
+'
+IFS=" 	$as_nl"
+
+# CDPATH.
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=:; export CDPATH; }
+
+# Name of the host.
+# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+exec 6>&1
+
+#
+# Initializations.
+#
 ac_default_prefix=/usr/local
-# Any additions from configure.in:
-ac_help="$ac_help
- --enable-rational-trees support infinite rational trees "
-ac_help="$ac_help
- --enable-coroutining support co-routining, attributed variables and constraints"
-ac_help="$ac_help
- --enable-wam-profile  support low level profiling of abstract machine "
-ac_help="$ac_help
- --enable-depth-limit  support depth-bound computation "
-ac_help="$ac_help
- --enable-or-parallelism  support or-parallelism as: env-copy,sba,a-cow "
-ac_help="$ac_help
- --enable-low-level-tracer  support support for procedure-call tracing "
-ac_help="$ac_help
- --enable-tabling  support tabling as: batched,local "
-ac_help="$ac_help
- --enable-max-performance  try using the best flags for specific architecture "
-ac_help="$ac_help
- --enable-debug-yap  enable C-debugging for YAP "
-ac_help="$ac_help
- --with-gmp[=DIR]    use GNU Multiple Precision in DIR"
+cross_compiling=no
+subdirs=
+MFLAGS= MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+# Maximum number of lines to put in a shell here document.
+# This variable seems obsolete.  It should probably be removed, and
+# only ac_max_sed_lines should be used.
+: ${ac_max_here_lines=38}
+
+# Avoid depending upon Character Ranges.
+ac_cr_az='abcdefghijklmnopqrstuvwxyz'
+ac_cr_AZ='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+ac_cr_09='0123456789'
+ac_cr_alnum=$ac_cr_az$ac_cr_AZ$ac_cr_09
+
+# Sed expression to map a string onto a valid sh and CPP variable names.
+ac_tr_sh="sed y%*+%pp%;s%[^_$ac_cr_alnum]%_%g"
+ac_tr_cpp="sed y%*$ac_cr_az%P$ac_cr_AZ%;s%[^_$ac_cr_alnum]%_%g"
+
+ac_unique_file="console/yap.c"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# if HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#if HAVE_STRING_H
+# if !STDC_HEADERS && HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#else
+# if HAVE_STRINGS_H
+#  include <strings.h>
+# endif
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
 
 # Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
 # The variables have the same names as the options, with
 # dashes changed to underlines.
-build=NONE
-cache_file=./config.cache
+cache_file=/dev/null
 exec_prefix=NONE
-host=NONE
 no_create=
-nonopt=NONE
 no_recursion=
 prefix=NONE
 program_prefix=NONE
@@ -49,10 +148,15 @@ program_transform_name=s,x,x,
 silent=
 site=
 srcdir=
-target=NONE
 verbose=
 x_includes=NONE
 x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
 bindir='${exec_prefix}/bin'
 sbindir='${exec_prefix}/sbin'
 libexecdir='${exec_prefix}/libexec'
@@ -66,17 +170,16 @@ oldincludedir='/usr/include'
 infodir='${prefix}/info'
 mandir='${prefix}/man'
 
-# Initialize some other variables.
-subdirs=
-MFLAGS= MAKEFLAGS=
-SHELL=${CONFIG_SHELL-/bin/sh}
-# Maximum number of lines to put in a shell here document.
-ac_max_here_lines=12
+# Identity of this package.
+PACKAGE_NAME=
+PACKAGE_TARNAME=
+PACKAGE_VERSION=
+PACKAGE_STRING=
+PACKAGE_BUGREPORT=
 
 ac_prev=
 for ac_option
 do
-
   # If the previous option needs an argument, assign it.
   if test -n "$ac_prev"; then
     eval "$ac_prev=\$ac_option"
@@ -84,59 +187,59 @@ do
     continue
   fi
 
-  case "$ac_option" in
-  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
-  *) ac_optarg= ;;
-  esac
+  ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`
 
   # Accept the important Cygnus configure options, so we can diagnose typos.
 
-  case "$ac_option" in
+  case $ac_option in
 
   -bindir | --bindir | --bindi | --bind | --bin | --bi)
     ac_prev=bindir ;;
   -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
-    bindir="$ac_optarg" ;;
+    bindir=$ac_optarg ;;
 
   -build | --build | --buil | --bui | --bu)
-    ac_prev=build ;;
+    ac_prev=build_alias ;;
   -build=* | --build=* | --buil=* | --bui=* | --bu=*)
-    build="$ac_optarg" ;;
+    build_alias=$ac_optarg ;;
 
   -cache-file | --cache-file | --cache-fil | --cache-fi \
   | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
     ac_prev=cache_file ;;
   -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
   | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
-    cache_file="$ac_optarg" ;;
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
 
   -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
     ac_prev=datadir ;;
   -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
   | --da=*)
-    datadir="$ac_optarg" ;;
+    datadir=$ac_optarg ;;
 
   -disable-* | --disable-*)
-    ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
+    ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
-    if test -n "`echo $ac_feature| sed 's/[-a-zA-Z0-9_]//g'`"; then
-      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
-    fi
-    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
-    eval "enable_${ac_feature}=no" ;;
+    expr "x$ac_feature" : ".*[^-_$ac_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+   { (exit 1); exit 1; }; }
+    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+    eval "enable_$ac_feature=no" ;;
 
   -enable-* | --enable-*)
-    ac_feature=`echo $ac_option|sed -e 's/-*enable-//' -e 's/=.*//'`
+    ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
-    if test -n "`echo $ac_feature| sed 's/[-_a-zA-Z0-9]//g'`"; then
-      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
-    fi
-    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
-    case "$ac_option" in
-      *=*) ;;
+    expr "x$ac_feature" : ".*[^-_$ac_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+   { (exit 1); exit 1; }; }
+    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+    case $ac_option in
+      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
       *) ac_optarg=yes ;;
     esac
-    eval "enable_${ac_feature}='$ac_optarg'" ;;
+    eval "enable_$ac_feature='$ac_optarg'" ;;
 
   -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
   | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
@@ -145,95 +248,47 @@ do
   -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
   | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
   | --exec=* | --exe=* | --ex=*)
-    exec_prefix="$ac_optarg" ;;
+    exec_prefix=$ac_optarg ;;
 
   -gas | --gas | --ga | --g)
     # Obsolete; use --with-gas.
     with_gas=yes ;;
 
-  -help | --help | --hel | --he)
-    # 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
-Usage: configure [options] [host]
-Options: [defaults in brackets after descriptions]
-Configuration:
-  --cache-file=FILE       cache test results in FILE
-  --help                  print this message
-  --no-create             do not create output files
-  --quiet, --silent       do not print \`checking...' messages
-  --version               print the version of autoconf that created configure
-Directory and file names:
-  --prefix=PREFIX         install architecture-independent files in PREFIX
-                          [$ac_default_prefix]
-  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
-                          [same as prefix]
-  --bindir=DIR            user executables in DIR [EPREFIX/bin]
-  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
-  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
-  --datadir=DIR           read-only architecture-independent data in DIR
-                          [PREFIX/share]
-  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
-  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
-                          [PREFIX/com]
-  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
-  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
-  --includedir=DIR        C header files in DIR [PREFIX/include]
-  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
-  --infodir=DIR           info documentation in DIR [PREFIX/info]
-  --mandir=DIR            man documentation in DIR [PREFIX/man]
-  --srcdir=DIR            find the sources in DIR [configure dir or ..]
-  --program-prefix=PREFIX prepend PREFIX to installed program names
-  --program-suffix=SUFFIX append SUFFIX to installed program names
-  --program-transform-name=PROGRAM
-                          run sed PROGRAM on installed program names
-EOF
-    cat << EOF
-Host type:
-  --build=BUILD           configure for building on BUILD [BUILD=HOST]
-  --host=HOST             configure for HOST [guessed]
-  --target=TARGET         configure for TARGET [TARGET=HOST]
-Features and packages:
-  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
-  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
-  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
-  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
-  --x-includes=DIR        X include files are in DIR
-  --x-libraries=DIR       X library files are in DIR
-EOF
-    if test -n "$ac_help"; then
-      echo "--enable and --with options recognized:$ac_help"
-    fi
-    exit 0 ;;
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
 
   -host | --host | --hos | --ho)
-    ac_prev=host ;;
+    ac_prev=host_alias ;;
   -host=* | --host=* | --hos=* | --ho=*)
-    host="$ac_optarg" ;;
+    host_alias=$ac_optarg ;;
 
   -includedir | --includedir | --includedi | --included | --include \
   | --includ | --inclu | --incl | --inc)
     ac_prev=includedir ;;
   -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
   | --includ=* | --inclu=* | --incl=* | --inc=*)
-    includedir="$ac_optarg" ;;
+    includedir=$ac_optarg ;;
 
   -infodir | --infodir | --infodi | --infod | --info | --inf)
     ac_prev=infodir ;;
   -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
-    infodir="$ac_optarg" ;;
+    infodir=$ac_optarg ;;
 
   -libdir | --libdir | --libdi | --libd)
     ac_prev=libdir ;;
   -libdir=* | --libdir=* | --libdi=* | --libd=*)
-    libdir="$ac_optarg" ;;
+    libdir=$ac_optarg ;;
 
   -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
   | --libexe | --libex | --libe)
     ac_prev=libexecdir ;;
   -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
   | --libexe=* | --libex=* | --libe=*)
-    libexecdir="$ac_optarg" ;;
+    libexecdir=$ac_optarg ;;
 
   -localstatedir | --localstatedir | --localstatedi | --localstated \
   | --localstate | --localstat | --localsta | --localst \
@@ -242,12 +297,12 @@ EOF
   -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
   | --localstate=* | --localstat=* | --localsta=* | --localst=* \
   | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
-    localstatedir="$ac_optarg" ;;
+    localstatedir=$ac_optarg ;;
 
   -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
     ac_prev=mandir ;;
   -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
-    mandir="$ac_optarg" ;;
+    mandir=$ac_optarg ;;
 
   -nfp | --nfp | --nf)
     # Obsolete; use --without-fp.
@@ -268,26 +323,26 @@ EOF
   -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
   | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
   | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
-    oldincludedir="$ac_optarg" ;;
+    oldincludedir=$ac_optarg ;;
 
   -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
     ac_prev=prefix ;;
   -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
-    prefix="$ac_optarg" ;;
+    prefix=$ac_optarg ;;
 
   -program-prefix | --program-prefix | --program-prefi | --program-pref \
   | --program-pre | --program-pr | --program-p)
     ac_prev=program_prefix ;;
   -program-prefix=* | --program-prefix=* | --program-prefi=* \
   | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
-    program_prefix="$ac_optarg" ;;
+    program_prefix=$ac_optarg ;;
 
   -program-suffix | --program-suffix | --program-suffi | --program-suff \
   | --program-suf | --program-su | --program-s)
     ac_prev=program_suffix ;;
   -program-suffix=* | --program-suffix=* | --program-suffi=* \
   | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
-    program_suffix="$ac_optarg" ;;
+    program_suffix=$ac_optarg ;;
 
   -program-transform-name | --program-transform-name \
   | --program-transform-nam | --program-transform-na \
@@ -304,7 +359,7 @@ EOF
   | --program-transfo=* | --program-transf=* \
   | --program-trans=* | --program-tran=* \
   | --progr-tra=* | --program-tr=* | --program-t=*)
-    program_transform_name="$ac_optarg" ;;
+    program_transform_name=$ac_optarg ;;
 
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil)
@@ -314,7 +369,7 @@ EOF
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
   | --sbi=* | --sb=*)
-    sbindir="$ac_optarg" ;;
+    sbindir=$ac_optarg ;;
 
   -sharedstatedir | --sharedstatedir | --sharedstatedi \
   | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
@@ -325,58 +380,57 @@ EOF
   | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
   | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
   | --sha=* | --sh=*)
-    sharedstatedir="$ac_optarg" ;;
+    sharedstatedir=$ac_optarg ;;
 
   -site | --site | --sit)
     ac_prev=site ;;
   -site=* | --site=* | --sit=*)
-    site="$ac_optarg" ;;
+    site=$ac_optarg ;;
 
   -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
     ac_prev=srcdir ;;
   -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
-    srcdir="$ac_optarg" ;;
+    srcdir=$ac_optarg ;;
 
   -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
   | --syscon | --sysco | --sysc | --sys | --sy)
     ac_prev=sysconfdir ;;
   -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
   | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
-    sysconfdir="$ac_optarg" ;;
+    sysconfdir=$ac_optarg ;;
 
   -target | --target | --targe | --targ | --tar | --ta | --t)
-    ac_prev=target ;;
+    ac_prev=target_alias ;;
   -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
-    target="$ac_optarg" ;;
+    target_alias=$ac_optarg ;;
 
   -v | -verbose | --verbose | --verbos | --verbo | --verb)
     verbose=yes ;;
 
-  -version | --version | --versio | --versi | --vers)
-    echo "configure generated by autoconf version 2.13"
-    exit 0 ;;
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
 
   -with-* | --with-*)
-    ac_package=`echo $ac_option|sed -e 's/-*with-//' -e 's/=.*//'`
+    ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
-    if test -n "`echo $ac_package| sed 's/[-_a-zA-Z0-9]//g'`"; then
-      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
-    fi
+    expr "x$ac_package" : ".*[^-_$ac_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid package name: $ac_package" >&2
+   { (exit 1); exit 1; }; }
     ac_package=`echo $ac_package| sed 's/-/_/g'`
-    case "$ac_option" in
-      *=*) ;;
+    case $ac_option in
+      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
       *) ac_optarg=yes ;;
     esac
-    eval "with_${ac_package}='$ac_optarg'" ;;
+    eval "with_$ac_package='$ac_optarg'" ;;
 
   -without-* | --without-*)
-    ac_package=`echo $ac_option|sed -e 's/-*without-//'`
+    ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
-    if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
-      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
-    fi
-    ac_package=`echo $ac_package| sed 's/-/_/g'`
-    eval "with_${ac_package}=no" ;;
+    expr "x$ac_package" : ".*[^-_$ac_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid package name: $ac_package" >&2
+   { (exit 1); exit 1; }; }
+    ac_package=`echo $ac_package | sed 's/-/_/g'`
+    eval "with_$ac_package=no" ;;
 
   --x)
     # Obsolete; use --with-x.
@@ -387,98 +441,89 @@ EOF
     ac_prev=x_includes ;;
   -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
   | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
-    x_includes="$ac_optarg" ;;
+    x_includes=$ac_optarg ;;
 
   -x-libraries | --x-libraries | --x-librarie | --x-librari \
   | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
     ac_prev=x_libraries ;;
   -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
-    x_libraries="$ac_optarg" ;;
+    x_libraries=$ac_optarg ;;
 
-  -*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
+  -*) { echo "$as_me: error: unrecognized option: $ac_option
+Try \`$0 --help' for more information." >&2
+   { (exit 1); exit 1; }; }
     ;;
 
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_envvar" : ".*[^_$ac_cr_alnum]" >/dev/null &&
+      { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
+   { (exit 1); exit 1; }; }
+    ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
+    eval "$ac_envvar='$ac_optarg'"
+    export $ac_envvar ;;
+
   *)
-    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
-      echo "configure: warning: $ac_option: invalid host type" 1>&2
-    fi
-    if test "x$nonopt" != xNONE; then
-      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
-    fi
-    nonopt="$ac_option"
+    # FIXME: should be removed in autoconf 3.0.
+    echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$ac_cr_alnum]" >/dev/null &&
+      echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
     ;;
 
   esac
 done
 
 if test -n "$ac_prev"; then
-  { echo "configure: error: missing argument to --`echo $ac_prev | sed 's/_/-/g'`" 1>&2; exit 1; }
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  { echo "$as_me: error: missing argument to $ac_option" >&2
+   { (exit 1); exit 1; }; }
 fi
 
-trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
-
-# File descriptor usage:
-# 0 standard input
-# 1 file creation
-# 2 errors and warnings
-# 3 some systems may open it to /dev/tty
-# 4 used on the Kubota Titan
-# 6 checking for... messages and results
-# 5 compiler messages saved in config.log
-if test "$silent" = yes; then
-  exec 6>/dev/null
-else
-  exec 6>&1
-fi
-exec 5>./config.log
-
-echo "\
-This file contains any messages produced by compilers while
-running configure, to aid debugging if configure makes a mistake.
-" 1>&5
-
-# Strip out --no-create and --no-recursion so they do not pile up.
-# Also quote any args containing shell metacharacters.
-ac_configure_args=
-for ac_arg
+# Be sure to have absolute paths.
+for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
+              localstatedir libdir includedir oldincludedir infodir mandir \
+              exec_prefix prefix
 do
-  case "$ac_arg" in
-  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
-  | --no-cr | --no-c) ;;
-  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
-  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
-  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
-  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
-  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
+  eval ac_val=$`echo $ac_var`
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* ) ;;
+    NONE ) ;;
+    *)  { echo "$as_me: error: expected an absolute path for --$ac_var: $ac_val" >&2
+   { (exit 1); exit 1; }; };;
   esac
 done
 
-# NLS nuisances.
-# Only set these to C if already set.  These must not be set unconditionally
-# because not all systems understand e.g. LANG=C (notably SCO).
-# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
-# Non-C LC_CTYPE values break the ctype check.
-if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
-if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
-if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
-if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+build=$build_alias
+host=$host_alias
+target=$target_alias
 
-# confdefs.h avoids OS command line length limits that DEFS can exceed.
-rm -rf conftest* confdefs.h
-# AIX cpp loses on an empty file, so make sure it contains at least a newline.
-echo > confdefs.h
+# FIXME: should be removed in autoconf 3.0.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+    echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
+    If a cross compiler is detected then cross compile mode will be used." >&2
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
 
-# A filename unique to this package, relative to the directory that
-# configure is in, which we can look for to find out if srcdir is correct.
-ac_unique_file=console/yap.c
+ac_tool_prefix=
+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 $ac_prog|sed 's%/[^/][^/]*$%%'`
+  ac_confdir=`echo "$ac_prog" | sed 's%[\\/][^\\/][^\\/]*$%%'`
   test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
   srcdir=$ac_confdir
   if test ! -r $srcdir/$ac_unique_file; then
@@ -489,13 +534,318 @@ else
 fi
 if test ! -r $srcdir/$ac_unique_file; then
   if test "$ac_srcdir_defaulted" = yes; then
-    { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
+    { echo "$as_me: error: cannot find sources in $ac_confdir or .." >&2
+   { (exit 1); exit 1; }; }
   else
-    { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
+    { echo "$as_me: error: cannot find sources in $srcdir" >&2
+   { (exit 1); exit 1; }; }
   fi
 fi
-srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
+srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
+ac_env_build_alias_set=${build_alias+set}
+ac_env_build_alias_value=$build_alias
+ac_cv_env_build_alias_set=${build_alias+set}
+ac_cv_env_build_alias_value=$build_alias
+ac_env_host_alias_set=${host_alias+set}
+ac_env_host_alias_value=$host_alias
+ac_cv_env_host_alias_set=${host_alias+set}
+ac_cv_env_host_alias_value=$host_alias
+ac_env_target_alias_set=${target_alias+set}
+ac_env_target_alias_value=$target_alias
+ac_cv_env_target_alias_set=${target_alias+set}
+ac_cv_env_target_alias_value=$target_alias
+ac_env_CC_set=${CC+set}
+ac_env_CC_value=$CC
+ac_cv_env_CC_set=${CC+set}
+ac_cv_env_CC_value=$CC
+ac_env_CFLAGS_set=${CFLAGS+set}
+ac_env_CFLAGS_value=$CFLAGS
+ac_cv_env_CFLAGS_set=${CFLAGS+set}
+ac_cv_env_CFLAGS_value=$CFLAGS
+ac_env_LDFLAGS_set=${LDFLAGS+set}
+ac_env_LDFLAGS_value=$LDFLAGS
+ac_cv_env_LDFLAGS_set=${LDFLAGS+set}
+ac_cv_env_LDFLAGS_value=$LDFLAGS
+ac_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_env_CPPFLAGS_value=$CPPFLAGS
+ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_cv_env_CPPFLAGS_value=$CPPFLAGS
+ac_env_CPP_set=${CPP+set}
+ac_env_CPP_value=$CPP
+ac_cv_env_CPP_set=${CPP+set}
+ac_cv_env_CPP_value=$CPP
 
+#
+# Report the --help message.
+#
+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
+\`configure' configures this package to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+EOF
+
+  cat <<EOF
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR           user executables [EPREFIX/bin]
+  --sbindir=DIR          system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR       program executables [EPREFIX/libexec]
+  --datadir=DIR          read-only architecture-independent data [PREFIX/share]
+  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
+  --libdir=DIR           object code libraries [EPREFIX/lib]
+  --includedir=DIR       C header files [PREFIX/include]
+  --oldincludedir=DIR    C header files for non-gcc [/usr/include]
+  --infodir=DIR          info documentation [PREFIX/info]
+  --mandir=DIR           man documentation [PREFIX/man]
+EOF
+
+  cat <<\EOF
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       build programs to run on HOST [BUILD]
+  --target=TARGET   configure for building compilers for TARGET [HOST]
+EOF
+fi
+
+if test -n "$ac_init_help"; then
+
+  cat <<\EOF
+
+Optional Features:
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+ --enable-rational-trees support infinite rational trees
+ --enable-coroutining support co-routining, attributed variables and constraints
+ --enable-wam-profile  support low level profiling of abstract machine
+ --enable-depth-limit  support depth-bound computation
+ --enable-or-parallelism  support or-parallelism as: env-copy,sba,a-cow
+ --enable-low-level-tracer  support support for procedure-call tracing
+ --enable-tabling  support tabling as: batched,local
+ --enable-max-performance  try using the best flags for specific architecture
+ --enable-debug-yap  enable C-debugging for YAP
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+ --with-gmp=DIR    use GNU Multiple Precision in DIR
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  CPPFLAGS    C/C++ preprocessor flags, e.g. -I<include dir> if you have
+              headers in a nonstandard directory <include dir>
+  CPP         C preprocessor
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+EOF
+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'`
+
+    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
+
+    # Check for guested configure; otherwise get Cygnus style configure.
+    if test -f $ac_sub_srcdir/configure.gnu; then
+      echo
+      $SHELL $ac_sub_srcdir/configure.gnu  --help=recursive
+    elif test -f $ac_sub_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
+      echo
+      $ac_configure --help
+    else
+      echo "$as_me: WARNING: no configuration information is in $ac_subdir" >&2
+    fi
+    cd $ac_popdir
+  done
+fi
+
+test -n "$ac_init_help" && exit 0
+if $ac_init_version; then
+  cat <<\EOF
+
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+EOF
+  exit 0
+fi
+exec 5>config.log
+cat >&5 <<EOF
+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 2.50.  Invocation command line was
+
+  $ $0 $@
+
+EOF
+{
+cat <<_ASUNAME
+## ---------- ##
+## Platform.  ##
+## ---------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+hostinfo               = `(hostinfo) 2>/dev/null               || echo unknown`
+/bin/machine           = `(/bin/machine) 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
+} >&5
+
+cat >&5 <<EOF
+## ------------ ##
+## Core tests.  ##
+## ------------ ##
+
+EOF
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Also quote any args containing shell meta-characters.
+ac_configure_args=
+ac_sep=
+for ac_arg
+do
+  case $ac_arg in
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c) ;;
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+    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$ac_arg"
+     ac_sep=" " ;;
+  esac
+  # Get rid of the leading space.
+done
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+trap 'exit_status=$?
+  # 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,
+{
+  (set) 2>&1 |
+    case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
+    *ac_space=\ *)
+      sed -n \
+        "s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
+    	  s/^\\([_$ac_cr_alnum]*_cv_[_$ac_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
+      ;;
+    *)
+      sed -n \
+        "s/^\\([_$ac_cr_alnum]*_cv_[_$ac_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 &&
+    exit $exit_status
+     ' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_status=$?; ac_signal='$ac_signal'; { (exit $ac_status); exit $ac_status; }' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo >confdefs.h
+
+# Let the site file select an alternate cache file if it wants to.
 # Prefer explicitly selected file to automatically selected ones.
 if test -z "$CONFIG_SITE"; then
   if test "x$prefix" != xNONE; then
@@ -506,253 +856,645 @@ if test -z "$CONFIG_SITE"; then
 fi
 for ac_site_file in $CONFIG_SITE; do
   if test -r "$ac_site_file"; then
-    echo "loading site script $ac_site_file"
+    { echo "$as_me:859: loading site script $ac_site_file" >&5
+echo "$as_me: loading site script $ac_site_file" >&6;}
+    cat "$ac_site_file" >&5
     . "$ac_site_file"
   fi
 done
 
 if test -r "$cache_file"; then
-  echo "loading cache $cache_file"
-  . $cache_file
+  # Some versions of bash will fail to source /dev/null (special
+  # files actually), so we avoid doing that.
+  if test -f "$cache_file"; then
+    { echo "$as_me:870: loading cache $cache_file" >&5
+echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . $cache_file;;
+      *)                      . ./$cache_file;;
+    esac
+  fi
 else
-  echo "creating cache $cache_file"
-  > $cache_file
+  { echo "$as_me:878: creating cache $cache_file" >&5
+echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_suggest_removing_cache=false
+for ac_var in `(set) 2>&1 |
+               sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val="\$ac_cv_env_${ac_var}_value"
+  eval ac_new_val="\$ac_env_${ac_var}_value"
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { echo "$as_me:894: WARNING: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+echo "$as_me: WARNING: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_suggest_removing_cache=: ;;
+    ,set)
+      { echo "$as_me:898: WARNING: \`$ac_var' was not set in the previous run" >&5
+echo "$as_me: WARNING: \`$ac_var' was not set in the previous run" >&2;}
+      ac_suggest_removing_cache=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+        { echo "$as_me:904: WARNING: \`$ac_var' has changed since the previous run:" >&5
+echo "$as_me: WARNING: \`$ac_var' has changed since the previous run:" >&2;}
+        { echo "$as_me:906: WARNING:   former value:  $ac_old_val" >&5
+echo "$as_me: WARNING:   former value:  $ac_old_val" >&2;}
+        { echo "$as_me:908: WARNING:   current value: $ac_new_val" >&5
+echo "$as_me: WARNING:   current value: $ac_new_val" >&2;}
+        ac_suggest_removing_cache=:
+      fi;;
+  esac
+done
+if $ac_suggest_removing_cache; then
+  { echo "$as_me:915: WARNING: changes in the environment can compromise the build" >&5
+echo "$as_me: WARNING: changes in the environment can compromise the build" >&2;}
+  { echo "$as_me:917: WARNING: consider removing $cache_file and starting over" >&5
+echo "$as_me: WARNING: consider removing $cache_file and starting over" >&2;}
 fi
 
 ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
+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
 
-ac_exeext=
-ac_objext=o
-if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
-  # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
-  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
-    ac_n= ac_c='
-' ac_t='	'
-  else
-    ac_n=-n ac_c= ac_t=
-  fi
+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:936: PATH=\".;.\"; conftest.sh") >&5
+  (PATH=".;."; conftest.sh) 2>&5
+  ac_status=$?
+  echo "$as_me:939: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  ac_path_separator=';'
 else
-  ac_n= ac_c='\c' ac_t=
+  ac_path_separator=:
 fi
+PATH_SEPARATOR="$ac_path_separator"
+rm -f conftest.sh
 
-
-
+ac_config_headers="$ac_config_headers config.h"
 
 mycflags="$CFLAGS"
 
-# Extract the first word of "gcc", so it can be a program name with args.
-set dummy gcc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:552: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ext=c
+ac_cpp='$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
+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:960: 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) $ECHO_C" >&6
 else
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_CC="gcc"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
+  ac_save_IFS=$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:975: found $ac_dir/$ac_word" >&5
+break
+done
+
 fi
 fi
-CC="$ac_cv_prog_CC"
+CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
+  echo "$as_me:983: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
 else
-  echo "$ac_t""no" 1>&6
+  echo "$as_me:986: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+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:995: 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) $ECHO_C" >&6
+else
+  if test -n "$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:1010: found $ac_dir/$ac_word" >&5
+break
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:1018: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:1021: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  CC=$ac_ct_CC
+else
+  CC="$ac_cv_prog_CC"
 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 $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:582: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+  if test -n "$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:1034: 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) $ECHO_C" >&6
+else
+  if test -n "$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:1049: found $ac_dir/$ac_word" >&5
+break
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:1057: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:1060: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$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:1069: 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) $ECHO_C" >&6
+else
+  if test -n "$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:1084: found $ac_dir/$ac_word" >&5
+break
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:1092: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:1095: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  CC=$ac_ct_CC
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+fi
+if test -z "$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:1108: 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) $ECHO_C" >&6
 else
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
   ac_prog_rejected=no
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
-        ac_prog_rejected=yes
-	continue
-      fi
-      ac_cv_prog_CC="cc"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
+  ac_save_IFS=$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:1128: found $ac_dir/$ac_word" >&5
+break
+done
+
 if test $ac_prog_rejected = yes; then
   # We found a bogon in the path, so make sure we never use it.
   set dummy $ac_cv_prog_CC
   shift
-  if test $# -gt 0; then
+  if test $# != 0; then
     # We chose a different compiler from the bogus one.
     # However, it has the same basename, so the bogon will be chosen
     # first if we set CC to just the basename; use the full file name.
     shift
-    set dummy "$ac_dir/$ac_word" "$@"
+    set dummy "$ac_dir/$ac_word" ${1+"$@"}
     shift
     ac_cv_prog_CC="$@"
   fi
 fi
 fi
 fi
-CC="$ac_cv_prog_CC"
+CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
+  echo "$as_me:1150: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
 else
-  echo "$ac_t""no" 1>&6
+  echo "$as_me:1153: result: no" >&5
+echo "${ECHO_T}no" >&6
 fi
 
-  if test -z "$CC"; then
-    case "`uname -s`" in
-    *win32* | *WIN32*)
-      # Extract the first word of "cl", so it can be a program name with args.
-set dummy cl; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:633: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl
+  do
+    # Extract the first word of "$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:1164: 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) $ECHO_C" >&6
 else
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_CC="cl"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
+  ac_save_IFS=$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:1179: found $ac_dir/$ac_word" >&5
+break
+done
+
 fi
 fi
-CC="$ac_cv_prog_CC"
+CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
+  echo "$as_me:1187: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
 else
-  echo "$ac_t""no" 1>&6
-fi
- ;;
-    esac
-  fi
-  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
+  echo "$as_me:1190: result: no" >&5
+echo "${ECHO_T}no" >&6
 fi
 
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:665: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl
+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:1203: 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) $ECHO_C" >&6
+else
+  if test -n "$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:1218: found $ac_dir/$ac_word" >&5
+break
+done
 
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:1226: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:1229: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
 
-cat > conftest.$ac_ext << EOF
+  test -n "$ac_ct_CC" && break
+done
 
-#line 676 "configure"
+  CC=$ac_ct_CC
+fi
+
+fi
+
+test -z "$CC" && { { echo "$as_me:1241: error: no acceptable cc found in \$PATH" >&5
+echo "$as_me: error: no acceptable cc found in \$PATH" >&2;}
+   { (exit 1); exit 1; }; }
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 1246 "configure"
 #include "confdefs.h"
 
-main(){return(0);}
-EOF
-if { (eval echo configure:681: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  ac_cv_prog_cc_works=yes
-  # If we can't run a trivial program, we are probably using a cross compiler.
-  if (./conftest; exit) 2>/dev/null; then
-    ac_cv_prog_cc_cross=no
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.exe"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compiler, and finding out an intuition
+# of exeext.
+echo "$as_me:1262: 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 "$as_me:1265: \"$ac_link_default\"") >&5
+  (eval $ac_link_default) 2>&5
+  ac_status=$?
+  echo "$as_me:1268: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  for ac_file in `ls a.exe conftest.exe a.* conftest conftest.* 2>/dev/null`; do
+  case $ac_file in
+    *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb ) ;;
+    a.out ) # We found the default executable, but exeext='' is most
+            # certainly right.
+            break;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+          export ac_cv_exeext
+          break;;
+    * ) break;;
+  esac
+done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+{ { echo "$as_me:1285: error: C compiler cannot create executables" >&5
+echo "$as_me: error: C compiler cannot create executables" >&2;}
+   { (exit 77); exit 77; }; }
+fi
+
+ac_exeext=$ac_cv_exeext
+echo "$as_me:1291: 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:1296: 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:1302: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1305: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+    cross_compiling=no
   else
-    ac_cv_prog_cc_cross=yes
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { echo "$as_me:1312: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'." >&5
+echo "$as_me: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'." >&2;}
+   { (exit 1); exit 1; }; }
+    fi
   fi
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  ac_cv_prog_cc_works=no
 fi
-rm -fr conftest*
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
+echo "$as_me:1320: result: yes" >&5
+echo "${ECHO_T}yes" >&6
 
-echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
-if test $ac_cv_prog_cc_works = no; then
-  { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
-fi
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:707: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
-echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
-cross_compiling=$ac_cv_prog_cc_cross
+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:1327: checking whether we are cross compiling" >&5
+echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
+echo "$as_me:1329: result: $cross_compiling" >&5
+echo "${ECHO_T}$cross_compiling" >&6
 
-echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:712: checking whether we are using GNU C" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:1332: checking for executable suffix" >&5
+echo $ECHO_N "checking for executable suffix... $ECHO_C" >&6
+if { (eval echo "$as_me:1334: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:1337: \$? = $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
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in `(ls conftest.exe; ls conftest; ls conftest.*) 2>/dev/null`; do
+  case $ac_file in
+    *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+          export ac_cv_exeext
+          break;;
+    * ) break;;
+  esac
+done
 else
-  cat > conftest.c <<EOF
-#ifdef __GNUC__
-  yes;
+  { { echo "$as_me:1353: error: cannot compute EXEEXT: cannot compile and link" >&5
+echo "$as_me: error: cannot compute EXEEXT: cannot compile and link" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest$ac_cv_exeext
+echo "$as_me:1359: 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:1365: checking for object suffix" >&5
+echo $ECHO_N "checking for object suffix... $ECHO_C" >&6
+if test "${ac_cv_objext+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1371 "configure"
+#include "confdefs.h"
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { (eval echo "$as_me:1383: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1386: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+{ { echo "$as_me:1398: error: cannot compute OBJEXT: cannot compile" >&5
+echo "$as_me: error: cannot compute OBJEXT: cannot compile" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+echo "$as_me:1405: result: $ac_cv_objext" >&5
+echo "${ECHO_T}$ac_cv_objext" >&6
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+echo "$as_me:1409: 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 1415 "configure"
+#include "confdefs.h"
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
 #endif
-EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:721: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
-  ac_cv_prog_gcc=yes
-else
-  ac_cv_prog_gcc=no
-fi
-fi
 
-echo "$ac_t""$ac_cv_prog_gcc" 1>&6
-
-if test $ac_cv_prog_gcc = yes; then
-  GCC=yes
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:1430: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1433: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:1436: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1439: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_compiler_gnu=yes
 else
-  GCC=
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_compiler_gnu=no
 fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
-ac_test_CFLAGS="${CFLAGS+set}"
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS=
-echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:740: checking whether ${CC-cc} accepts -g" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+fi
+echo "$as_me:1451: 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:1457: 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) $ECHO_C" >&6
 else
-  echo 'void f(){}' > conftest.c
-if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1463 "configure"
+#include "confdefs.h"
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:1475: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1478: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:1481: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1484: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   ac_cv_prog_cc_g=yes
 else
-  ac_cv_prog_cc_g=no
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_prog_cc_g=no
 fi
-rm -f conftest*
-
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-
-echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
+echo "$as_me:1494: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
 if test "$ac_test_CFLAGS" = set; then
-  CFLAGS="$ac_save_CFLAGS"
+  CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
   if test "$GCC" = yes; then
     CFLAGS="-g -O2"
@@ -766,177 +1508,113 @@ else
     CFLAGS=
   fi
 fi
-
-
-
-
-echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:775: checking for Cygwin environment" >&5
-if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line 780 "configure"
-#include "confdefs.h"
-
-int main() {
-
-#ifndef __CYGWIN__
-#define __CYGWIN__ __CYGWIN32__
+# Some people use a C++ compiler to compile C.  Since we use `exit',
+# in C++ we need to declare it.  In case someone uses the same compiler
+# for both compiling C and C++ we need to have the C++ compiler decide
+# the declaration of exit, since it's the most demanding environment.
+cat >conftest.$ac_ext <<_ACEOF
+#ifndef __cplusplus
+  choke me
 #endif
-return __CYGWIN__;
-; return 0; }
-EOF
-if { (eval echo configure:791: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  ac_cv_cygwin=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  ac_cv_cygwin=no
-fi
-rm -f conftest*
-rm -f conftest*
-fi
-
-echo "$ac_t""$ac_cv_cygwin" 1>&6
-CYGWIN=
-test "$ac_cv_cygwin" = yes && CYGWIN=yes
-if test $ac_cv_cygwin = yes  -a "$CC" = "gcc"
-then
-  CC="gcc -mno-cygwin"
-fi
-echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:812: checking for mingw32 environment" >&5
-if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line 817 "configure"
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:1521: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1524: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:1527: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1530: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  for ac_declaration in \
+   ''\
+   '#include <stdlib.h>' \
+   'extern "C" void std::exit (int) throw (); using std::exit;' \
+   'extern "C" void std::exit (int); using std::exit;' \
+   'extern "C" void exit (int) throw ();' \
+   'extern "C" void exit (int);' \
+   'void exit (int);'
+do
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1542 "configure"
 #include "confdefs.h"
-
-int main() {
-return __MINGW32__;
-; return 0; }
-EOF
-if { (eval echo configure:824: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  ac_cv_mingw32=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  ac_cv_mingw32=no
-fi
-rm -f conftest*
-rm -f conftest*
-fi
-
-echo "$ac_t""$ac_cv_mingw32" 1>&6
-MINGW32=
-test "$ac_cv_mingw32" = yes && MINGW32=yes
-
-echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:842: checking how to run the C preprocessor" >&5
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
-  CPP=
-fi
-if test -z "$CPP"; then
-if eval "test \"`echo '$''{'ac_cv_prog_CPP'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-    # This must be in double quotes, not single quotes, because CPP may get
-  # substituted into the Makefile and "${CC-cc}" will confuse make.
-  CPP="${CC-cc} -E"
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp.
-  cat > conftest.$ac_ext <<EOF
-#line 857 "configure"
-#include "confdefs.h"
-#include <assert.h>
-Syntax Error
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:863: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
+#include <stdlib.h>
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:1555: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1558: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:1561: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1564: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   :
 else
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  CPP="${CC-cc} -E -traditional-cpp"
-  cat > conftest.$ac_ext <<EOF
-#line 874 "configure"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+continue
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1574 "configure"
 #include "confdefs.h"
-#include <assert.h>
-Syntax Error
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:880: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  :
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:1586: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1589: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:1592: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1595: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
 else
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  CPP="${CC-cc} -nologo -E"
-  cat > conftest.$ac_ext <<EOF
-#line 891 "configure"
-#include "confdefs.h"
-#include <assert.h>
-Syntax Error
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:897: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  :
-else
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  CPP=/lib/cpp
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
 fi
-rm -f conftest*
-fi
-rm -f conftest*
-fi
-rm -f conftest*
-  ac_cv_prog_CPP="$CPP"
-fi
-  CPP="$ac_cv_prog_CPP"
-else
-  ac_cv_prog_CPP="$CPP"
-fi
-echo "$ac_t""$CPP" 1>&6
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+echo '#ifdef __cplusplus' >>confdefs.h
+echo $ac_declaration      >>confdefs.h
+echo '#endif'             >>confdefs.h
 
-echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:922: checking whether ln -s works" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
 else
-  rm -f conftestdata
-if ln -s X conftestdata 2>/dev/null
-then
-  rm -f conftestdata
-  ac_cv_prog_LN_S="ln -s"
-else
-  ac_cv_prog_LN_S=ln
-fi
-fi
-LN_S="$ac_cv_prog_LN_S"
-if test "$ac_cv_prog_LN_S" = "ln -s"; then
-  echo "$ac_t""yes" 1>&6
-else
-  echo "$ac_t""no" 1>&6
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
 fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$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
 
 ac_aux_dir=
 for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
@@ -948,14 +1626,298 @@ for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
     ac_aux_dir=$ac_dir
     ac_install_sh="$ac_aux_dir/install.sh -c"
     break
+  elif test -f $ac_dir/shtool; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
   fi
 done
 if test -z "$ac_aux_dir"; then
-  { echo "configure: error: can not find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
+  { { echo "$as_me:1636: 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/.. $srcdir/../.." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"
+ac_configure="$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:1646: error: cannot run $ac_config_sub" >&5
+echo "$as_me: error: cannot run $ac_config_sub" >&2;}
+   { (exit 1); exit 1; }; }
+
+echo "$as_me:1650: 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) $ECHO_C" >&6
+else
+  ac_cv_build_alias=$build_alias
+test -z "$ac_cv_build_alias" &&
+  ac_cv_build_alias=`$ac_config_guess`
+test -z "$ac_cv_build_alias" &&
+  { { echo "$as_me:1659: 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:1663: 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:1668: 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:1675: 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) $ECHO_C" >&6
+else
+  ac_cv_host_alias=$host_alias
+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:1684: 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:1689: 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/'`
+
+case $host_os in
+  *cygwin* ) CYGWIN=yes;;
+         * ) CYGWIN=no;;
+esac
+
+if test "$ac_cv_cygwin" = "yes"  -a "$CC" = "gcc"
+then
+  CC="gcc -mno-cygwin"
+fi
+case $host_os in
+  *mingw32* ) MINGW32=yes;;
+          * ) MINGW32=no;;
+esac
+
+ac_ext=c
+ac_cpp='$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:1715: 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 "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if test "${ac_cv_prog_CPP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      # break 2 since there is a loop in there.
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1737 "configure"
+#include "confdefs.h"
+#include <assert.h>
+                     Syntax error
+_ACEOF
+if { (eval echo "$as_me:1742: \"$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:1748: \$? = $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 "$ac_cpp_err"; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether non-existent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1771 "configure"
+#include "confdefs.h"
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:1775: \"$ac_cpp conftest.$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:1781: \$? = $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 "$ac_cpp_err"; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  break 2
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+echo "$as_me:1818: result: $CPP" >&5
+echo "${ECHO_T}$CPP" >&6
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1828 "configure"
+#include "confdefs.h"
+#include <assert.h>
+                     Syntax error
+_ACEOF
+if { (eval echo "$as_me:1833: \"$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:1839: \$? = $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 "$ac_cpp_err"; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether non-existent headers
+  # can be detected and how.
+  cat >conftest.$ac_ext <<_ACEOF
+#line 1862 "configure"
+#include "confdefs.h"
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:1866: \"$ac_cpp conftest.$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:1872: \$? = $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 "$ac_cpp_err"; then
+  # Broken: success on invalid input.
+continue
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+  :
+else
+  { { echo "$as_me:1900: error: C preprocessor \"$CPP\" fails sanity check" >&5
+echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$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:1911: 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:1915: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me:1918: result: no, using $LN_S" >&5
+echo "${ECHO_T}no, using $LN_S" >&6
 fi
-ac_config_guess=$ac_aux_dir/config.guess
-ac_config_sub=$ac_aux_dir/config.sub
-ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
 
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
@@ -964,31 +1926,39 @@ ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
 # SunOS /usr/etc/install
 # IRIX /sbin/install
 # AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
 # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
 # 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 $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:973: checking for a BSD compatible install" >&5
+echo "$as_me:1934: 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 eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+if test "${ac_cv_path_install+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS=":"
+    ac_save_IFS=$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
-    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
+    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 test -f $ac_dir/$ac_prog; then
+        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
+            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/$ac_prog -c"
 	    break 2
@@ -998,201 +1968,240 @@ else
       ;;
     esac
   done
-  IFS="$ac_save_IFS"
 
 fi
   if test "${ac_cv_path_install+set}" = set; then
-    INSTALL="$ac_cv_path_install"
+    INSTALL=$ac_cv_path_install
   else
     # As a last resort, use the slow shell script.  We don't cache a
     # path for INSTALL within a source directory, because that will
     # break other packages using the cache if that directory is
     # removed, or if the path is relative.
-    INSTALL="$ac_install_sh"
+    INSTALL=$ac_install_sh
   fi
 fi
-echo "$ac_t""$INSTALL" 1>&6
+echo "$as_me:1983: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 # It thinks the first close brace ends the variable substitution.
 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
 
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
-# Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1028: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+if test -n "$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:1997: 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) $ECHO_C" >&6
 else
   if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_RANLIB="ranlib"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-  test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
+  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:2012: found $ac_dir/$ac_word" >&5
+break
+done
+
 fi
 fi
-RANLIB="$ac_cv_prog_RANLIB"
+RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
-  echo "$ac_t""$RANLIB" 1>&6
+  echo "$as_me:2020: result: $RANLIB" >&5
+echo "${ECHO_T}$RANLIB" >&6
 else
-  echo "$ac_t""no" 1>&6
+  echo "$as_me:2023: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+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:2032: 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) $ECHO_C" >&6
+else
+  if test -n "$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:2047: found $ac_dir/$ac_word" >&5
+break
+done
+
+  test -z "$ac_cv_prog_ac_ct_RANLIB" && ac_cv_prog_ac_ct_RANLIB=":"
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  echo "$as_me:2056: result: $ac_ct_RANLIB" >&5
+echo "${ECHO_T}$ac_ct_RANLIB" >&6
+else
+  echo "$as_me:2059: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  RANLIB=$ac_ct_RANLIB
+else
+  RANLIB="$ac_cv_prog_RANLIB"
 fi
 
 for ac_prog in indent true
 do
-# Extract the first word of "$ac_prog", so it can be a program name with args.
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1060: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_INDENT'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:2072: 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) $ECHO_C" >&6
 else
   if test -n "$INDENT"; then
   ac_cv_prog_INDENT="$INDENT" # Let the user override the test.
 else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_INDENT="$ac_prog"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
+  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_prog"
+echo "$as_me:2087: found $ac_dir/$ac_word" >&5
+break
+done
+
 fi
 fi
-INDENT="$ac_cv_prog_INDENT"
+INDENT=$ac_cv_prog_INDENT
 if test -n "$INDENT"; then
-  echo "$ac_t""$INDENT" 1>&6
+  echo "$as_me:2095: result: $INDENT" >&5
+echo "${ECHO_T}$INDENT" >&6
 else
-  echo "$ac_t""no" 1>&6
+  echo "$as_me:2098: result: no" >&5
+echo "${ECHO_T}no" >&6
 fi
 
-test -n "$INDENT" && break
+  test -n "$INDENT" && break
 done
 
 # Extract the first word of "install-info", so it can be a program name with args.
 set dummy install-info; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1092: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_path_INSTALL_INFO'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:2107: 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) $ECHO_C" >&6
 else
-  case "$INSTALL_INFO" in
-  /*)
+  case $INSTALL_INFO in
+  [\\/]* | ?:[\\/]*)
   ac_cv_path_INSTALL_INFO="$INSTALL_INFO" # Let the user override the test with a path.
   ;;
-  ?:/*)			 
-  ac_cv_path_INSTALL_INFO="$INSTALL_INFO" # Let the user override the test with a dos path.
-  ;;
   *)
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH:/sbin:/usr/sbin:/usr/etc:/usr/local/sbin"
-  for ac_dir in $ac_dummy; do 
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_path_INSTALL_INFO="$ac_dir/$ac_word"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
+  ac_save_IFS=$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:2124: found $ac_dir/$ac_word" >&5
+   break
+fi
+done
+
   test -z "$ac_cv_path_INSTALL_INFO" && ac_cv_path_INSTALL_INFO="true"
   ;;
 esac
 fi
-INSTALL_INFO="$ac_cv_path_INSTALL_INFO"
-if test -n "$INSTALL_INFO"; then
-  echo "$ac_t""$INSTALL_INFO" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
+INSTALL_INFO=$ac_cv_path_INSTALL_INFO
 
+if test -n "$INSTALL_INFO"; then
+  echo "$as_me:2136: result: $INSTALL_INFO" >&5
+echo "${ECHO_T}$INSTALL_INFO" >&6
+else
+  echo "$as_me:2139: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
 
 # Check whether --enable-rational-trees or --disable-rational-trees was given.
 if test "${enable_rational_trees+set}" = set; then
   enableval="$enable_rational_trees"
   rationaltrees="$enableval" ; rationaltrees=no
-fi
-
+fi;
 # Check whether --enable-coroutining or --disable-coroutining was given.
 if test "${enable_coroutining+set}" = set; then
   enableval="$enable_coroutining"
   rationaltrees="$enableval";coroutining="$enableval"
 else
   coroutining=no
-fi
-
+fi;
 # Check whether --enable-wam-profile or --disable-wam-profile was given.
 if test "${enable_wam_profile+set}" = set; then
   enableval="$enable_wam_profile"
   wamprofile="$enableval"
 else
   wamprofile=no
-fi
-
+fi;
 # Check whether --enable-depth-limit or --disable-depth-limit was given.
 if test "${enable_depth_limit+set}" = set; then
   enableval="$enable_depth_limit"
   depthlimit="$enableval"
 else
   depthlimit=no
-fi
-
+fi;
 # Check whether --enable-or-parallelism or --disable-or-parallelism was given.
 if test "${enable_or_parallelism+set}" = set; then
   enableval="$enable_or_parallelism"
   orparallelism="$enableval"
 else
   orparallelism=no
-fi
-
+fi;
 # Check whether --enable-low-level-tracer or --disable-low-level-tracer was given.
 if test "${enable_low_level_tracer+set}" = set; then
   enableval="$enable_low_level_tracer"
   lowleveltracer="$enableval"
 else
   lowleveltracer=no
-fi
-
+fi;
 # Check whether --enable-tabling or --disable-tabling was given.
 if test "${enable_tabling+set}" = set; then
   enableval="$enable_tabling"
   tabling="$enableval"
 else
   tabling=no
-fi
-
+fi;
 # Check whether --enable-max-performance or --disable-max-performance was given.
 if test "${enable_max_performance+set}" = set; then
   enableval="$enable_max_performance"
   maxperformance="$enableval"
 else
   maxperformance=no
-fi
-
+fi;
 # Check whether --enable-debug-yap or --disable-debug-yap was given.
 if test "${enable_debug_yap+set}" = set; then
   enableval="$enable_debug_yap"
   debugyap="$enableval"
 else
   debugyap=no
-fi
+fi;
 
-	
 # Check whether --with-gmp or --without-gmp was given.
 if test "${with_gmp+set}" = set; then
   withval="$with_gmp"
@@ -1206,152 +2215,232 @@ if test "${with_gmp+set}" = set; then
 		CPPFLAGS="$CPPFLAGS -I${yap_cv_gmp}/include"
 	fi
 	yap_cv_gmp=yes
+fi;
+
+echo "$as_me:2220: 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) $ECHO_C" >&6
+else
+  ac_cv_target_alias=$target_alias
+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:2229: error: $ac_config_sub $ac_cv_target_alias failed" >&5
+echo "$as_me: error: $ac_config_sub $ac_cv_target_alias failed" >&2;}
+   { (exit 1); exit 1; }; }
+
 fi
-
-
-
-# Do some error checking and defaulting for the host and target type.
-# The inputs are:
-#    configure --host=HOST --target=TARGET --build=BUILD NONOPT
-#
-# The rules are:
-# 1. You are not allowed to specify --host, --target, and nonopt at the
-#    same time.
-# 2. Host defaults to nonopt.
-# 3. If nonopt is not specified, then host defaults to the current host,
-#    as determined by config.guess.
-# 4. Target and build default to nonopt.
-# 5. If nonopt is not specified, then target and build default to host.
+echo "$as_me:2234: 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.
-case $host---$target---$nonopt in
-NONE---*---* | *---NONE---* | *---*---NONE) ;;
-*) { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; } ;;
-esac
-
-
-# Make sure we can run config.sub.
-if ${CONFIG_SHELL-/bin/sh} $ac_config_sub sun4 >/dev/null 2>&1; then :
-else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
-fi
-
-echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:1241: checking host system type" >&5
-
-host_alias=$host
-case "$host_alias" in
-NONE)
-  case $nonopt in
-  NONE)
-    if host_alias=`${CONFIG_SHELL-/bin/sh} $ac_config_guess`; then :
-    else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; }
-    fi ;;
-  *) host_alias=$nonopt ;;
-  esac ;;
-esac
-
-host=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $host_alias`
-host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
-host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
-host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
-echo "$ac_t""$host" 1>&6
-
-echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:1262: checking target system type" >&5
-
-target_alias=$target
-case "$target_alias" in
-NONE)
-  case $nonopt in
-  NONE) target_alias=$host_alias ;;
-  *) target_alias=$nonopt ;;
-  esac ;;
-esac
-
-target=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $target_alias`
-target_cpu=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
-target_vendor=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
-target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
-echo "$ac_t""$target" 1>&6
-
-echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:1280: checking build system type" >&5
-
-build_alias=$build
-case "$build_alias" in
-NONE)
-  case $nonopt in
-  NONE) build_alias=$host_alias ;;
-  *) build_alias=$nonopt ;;
-  esac ;;
-esac
-
-build=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $build_alias`
-build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
-build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
-build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
-echo "$ac_t""$build" 1>&6
-
-test "$host_alias" != "$target_alias" &&
+test -n "$target_alias" &&
   test "$program_prefix$program_suffix$program_transform_name" = \
     NONENONEs,x,x, &&
   program_prefix=${target_alias}-
 
-
-cat >> confdefs.h <<EOF
+cat >>confdefs.h <<EOF
 #define HOST_ALIAS "${host_alias}"
 EOF
 
-
 if test "$cross_compiling" = "yes"
 then
   YAP_EXTRAS=
 else
-  echo $ac_n "checking for restartable system calls""... $ac_c" 1>&6
-echo "configure:1313: checking for restartable system calls" >&5
-if eval "test \"`echo '$''{'ac_cv_sys_restartable_syscalls'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+
+echo "$as_me:2257: 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 2263 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/wait.h>
+#ifndef WEXITSTATUS
+# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
+#endif
+#ifndef WIFEXITED
+# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
+#endif
+
+int
+main ()
+{
+  int s;
+  wait (&s);
+  s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:2285: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:2288: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:2291: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2294: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_header_sys_wait_h=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_header_sys_wait_h=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:2304: result: $ac_cv_header_sys_wait_h" >&5
+echo "${ECHO_T}$ac_cv_header_sys_wait_h" >&6
+if test $ac_cv_header_sys_wait_h = yes; then
+
+cat >>confdefs.h <<\EOF
+#define HAVE_SYS_WAIT_H 1
+EOF
+
+fi
+
+for ac_header in unistd.h
+do
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:2317: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 2323 "configure"
+#include "confdefs.h"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:2327: \"$ac_cpp conftest.$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:2333: \$? = $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 "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  eval "$ac_ac_Header=no"
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:2352: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
+EOF
+
+fi
+done
+
+echo "$as_me:2362: 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 "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
+  { { echo "$as_me:2368: error: cannot run test program while cross compiling" >&5
+echo "$as_me: error: cannot run test program while cross compiling" >&2;}
+   { (exit 1); exit 1; }; }
 else
-  cat > conftest.$ac_ext <<EOF
-#line 1321 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 2373 "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
    after getting the signal.  */
+
 #include <sys/types.h>
 #include <signal.h>
-ucatch (isig) { }
-main () {
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#if HAVE_SYS_WAIT_H
+# include <sys/wait.h>
+#endif
+
+/* Some platforms explicitly require an extern "C" signal handler
+   when using C++. */
+#ifdef __cplusplus
+extern "C" void ucatch (int dummy) { }
+#else
+void ucatch (dummy) int dummy; { }
+#endif
+
+int
+main ()
+{
   int i = fork (), status;
-  if (i == 0) { sleep (3); kill (getppid (), SIGINT); sleep (3); exit (0); }
+
+  if (i == 0)
+    {
+      sleep (3);
+      kill (getppid (), SIGINT);
+      sleep (3);
+      exit (0);
+    }
+
   signal (SIGINT, ucatch);
-  status = wait(&i);
-  if (status == -1) wait(&i);
+
+  status = wait (&i);
+  if (status == -1)
+    wait (&i);
+
   exit (status == -1);
 }
-
-EOF
-if { (eval echo configure:1339: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:2419: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2422: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:2424: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2427: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   ac_cv_sys_restartable_syscalls=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
-  ac_cv_sys_restartable_syscalls=no
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_sys_restartable_syscalls=no
 fi
-rm -fr conftest*
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
 fi
-
 fi
-
-echo "$ac_t""$ac_cv_sys_restartable_syscalls" 1>&6
+echo "$as_me:2439: 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 <<\EOF
 #define HAVE_RESTARTABLE_SYSCALLS 1
 EOF
 
@@ -1441,467 +2530,560 @@ else
     C_INTERF_FLAGS="$CFLAGS"
 fi
 
-
-
 if test "$MINGW32" = "yes"
 then
-  echo $ac_n "checking for main in -lwsock32""... $ac_c" 1>&6
-echo "configure:1450: checking for main in -lwsock32" >&5
-ac_lib_var=`echo wsock32'_'main | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+
+echo "$as_me:2536: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lwsock32  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1458 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2544 "configure"
 #include "confdefs.h"
 
-int main() {
-main()
-; return 0; }
-EOF
-if { (eval echo configure:1465: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+int
+main ()
+{
+main ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2556: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2559: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2562: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2565: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_wsock32_main=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_wsock32_main=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo wsock32 | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2576: 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
+#define HAVE_LIBWSOCK32 1
 EOF
 
   LIBS="-lwsock32 $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
 
   INSTALL_COMMAND=install_mingw32
 else
   if test "$CYGWIN" = "yes" -a "$MINGW32" = "no"
   then
-    echo $ac_n "checking for main in -lwsock32""... $ac_c" 1>&6
-echo "configure:1497: checking for main in -lwsock32" >&5
-ac_lib_var=`echo wsock32'_'main | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+
+echo "$as_me:2592: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lwsock32  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1505 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2600 "configure"
 #include "confdefs.h"
 
-int main() {
-main()
-; return 0; }
-EOF
-if { (eval echo configure:1512: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+int
+main ()
+{
+main ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2612: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2615: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2618: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2621: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_wsock32_main=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_wsock32_main=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo wsock32 | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2632: 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
+#define HAVE_LIBWSOCK32 1
 EOF
 
   LIBS="-lwsock32 $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
 
-    echo $ac_n "checking for main in -lcygwin""... $ac_c" 1>&6
-echo "configure:1540: checking for main in -lcygwin" >&5
-ac_lib_var=`echo cygwin'_'main | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:2643: checking for main in -lcygwin" >&5
+echo $ECHO_N "checking for main in -lcygwin... $ECHO_C" >&6
+if test "${ac_cv_lib_cygwin_main+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lcygwin  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1548 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2651 "configure"
 #include "confdefs.h"
 
-int main() {
-main()
-; return 0; }
-EOF
-if { (eval echo configure:1555: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+int
+main ()
+{
+main ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2663: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2666: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2669: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2672: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_cygwin_main=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_cygwin_main=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo cygwin | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2683: result: $ac_cv_lib_cygwin_main" >&5
+echo "${ECHO_T}$ac_cv_lib_cygwin_main" >&6
+if test $ac_cv_lib_cygwin_main = yes; then
+  cat >>confdefs.h <<EOF
+#define HAVE_LIBCYGWIN 1
 EOF
 
   LIBS="-lcygwin $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
- 
+
   fi
   INSTALL_COMMAND="install_unix"
-  echo $ac_n "checking for sin in -lm""... $ac_c" 1>&6
-echo "configure:1585: checking for sin in -lm" >&5
-ac_lib_var=`echo m'_'sin | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+
+echo "$as_me:2697: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1593 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2705 "configure"
 #include "confdefs.h"
+
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char sin();
-
-int main() {
-sin()
-; return 0; }
-EOF
-if { (eval echo configure:1604: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+   builtin and then its argument prototype would still apply.  */
+char sin ();
+int
+main ()
+{
+sin ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2724: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2727: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2730: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2733: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_m_sin=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_m_sin=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo m | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2744: 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
+#define HAVE_LIBM 1
 EOF
 
   LIBS="-lm $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
 
-  echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:1632: checking for socket in -lsocket" >&5
-ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:2755: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsocket  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1640 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2763 "configure"
 #include "confdefs.h"
+
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char socket();
-
-int main() {
-socket()
-; return 0; }
-EOF
-if { (eval echo configure:1651: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+   builtin and then its argument prototype would still apply.  */
+char socket ();
+int
+main ()
+{
+socket ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2782: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2785: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2788: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2791: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_socket_socket=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_socket_socket=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo socket | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2802: 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
+#define HAVE_LIBSOCKET 1
 EOF
 
   LIBS="-lsocket $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
 
-  echo $ac_n "checking for tgetent in -ltermcap""... $ac_c" 1>&6
-echo "configure:1679: checking for tgetent in -ltermcap" >&5
-ac_lib_var=`echo termcap'_'tgetent | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:2813: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-ltermcap  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1687 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2821 "configure"
 #include "confdefs.h"
+
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char tgetent();
-
-int main() {
-tgetent()
-; return 0; }
-EOF
-if { (eval echo configure:1698: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+   builtin and then its argument prototype would still apply.  */
+char tgetent ();
+int
+main ()
+{
+tgetent ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2840: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2843: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2846: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2849: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_termcap_tgetent=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_termcap_tgetent=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo termcap | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2860: 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
+#define HAVE_LIBTERMCAP 1
 EOF
 
   LIBS="-ltermcap $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
 
-  echo $ac_n "checking for readline in -lreadline""... $ac_c" 1>&6
-echo "configure:1726: checking for readline in -lreadline" >&5
-ac_lib_var=`echo readline'_'readline | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:2871: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lreadline  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1734 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2879 "configure"
 #include "confdefs.h"
+
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char readline();
-
-int main() {
-readline()
-; return 0; }
-EOF
-if { (eval echo configure:1745: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+   builtin and then its argument prototype would still apply.  */
+char readline ();
+int
+main ()
+{
+readline ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2898: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2901: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2904: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2907: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_readline_readline=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_readline_readline=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo readline | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2918: 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
+#define HAVE_LIBREADLINE 1
 EOF
 
   LIBS="-lreadline $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
 
-  echo $ac_n "checking for main in -lgmp""... $ac_c" 1>&6
-echo "configure:1773: checking for main in -lgmp" >&5
-ac_lib_var=`echo gmp'_'main | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:2929: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgmp  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1781 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2937 "configure"
 #include "confdefs.h"
 
-int main() {
-main()
-; return 0; }
-EOF
-if { (eval echo configure:1788: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+int
+main ()
+{
+main ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:2949: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:2952: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:2955: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:2958: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_gmp_main=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_gmp_main=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo gmp | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_lib 1
+echo "$as_me:2969: 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
+#define HAVE_LIBGMP 1
 EOF
 
   LIBS="-lgmp $LIBS"
 
-else
-  echo "$ac_t""no" 1>&6
 fi
 
-  echo $ac_n "checking for main in -lnsl""... $ac_c" 1>&6
-echo "configure:1816: checking for main in -lnsl" >&5
-ac_lib_var=`echo nsl'_'main | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+  echo "$as_me:2980: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-lnsl  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1824 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 2988 "configure"
 #include "confdefs.h"
 
-int main() {
-main()
-; return 0; }
-EOF
-if { (eval echo configure:1831: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+int
+main ()
+{
+main ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:3000: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:3003: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:3006: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:3009: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_nsl_main=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_nsl_main=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
+echo "$as_me:3020: result: $ac_cv_lib_nsl_main" >&5
+echo "${ECHO_T}$ac_cv_lib_nsl_main" >&6
+if test $ac_cv_lib_nsl_main = yes; then
   have_nsl=yes
-	
+
 else
-  echo "$ac_t""no" 1>&6
-have_nsl=no
+  have_nsl=no
 fi
 
-  echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:1854: checking for dlopen in -ldl" >&5
-ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+  echo "$as_me:3029: 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) $ECHO_C" >&6
 else
-  ac_save_LIBS="$LIBS"
+  ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 1862 "configure"
+cat >conftest.$ac_ext <<_ACEOF
+#line 3037 "configure"
 #include "confdefs.h"
+
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char dlopen();
-
-int main() {
-dlopen()
-; return 0; }
-EOF
-if { (eval echo configure:1873: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:3056: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:3059: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:3062: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:3065: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_dl_dlopen=no
 fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
+echo "$as_me:3076: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
   	have_dl=yes
-	
+
 else
-  echo "$ac_t""no" 1>&6
-have_dl=no
+  have_dl=no
 fi
 
 fi
 
-
-
-
-
-
-
-
-
-
 INSTALL_DLLS="#"
 SHLIB_LD="@#"
 NEWSHOBJ="sobjs"
@@ -1949,7 +3131,7 @@ case $target_os in
 	;;
       *hpux*)
 	#do not use the first memory quadrant
-	cat >> confdefs.h <<\EOF
+	cat >>confdefs.h <<\EOF
 #define FORCE_SECOND_QUADRANT 1
 EOF
 
@@ -1988,7 +3170,7 @@ EOF
       *netbsd*|*freebsd*)
 	if echo __ELF__ | ${CC:-cc} -E - | grep -q __ELF__
         then
-	  #an a.out system 	
+	  #an a.out system
 	  SHLIB_CFLAGS=""
 	  SHLIB_SUFFIX=".o"
         else
@@ -2028,32 +3210,32 @@ if test "$coroutining" = "yes"
   then
   YAP_EXTRAS="$YAP_EXTRAS -DCOROUTINING=1"
 fi
-  
+
 if test "$rationaltrees" = "yes"
   then
   YAP_EXTRAS="$YAP_EXTRAS -DRATIONAL_TREES=1"
 fi
-  
+
 if test "$debugyap" = "yes"
   then
   YAP_EXTRAS="$YAP_EXTRAS -DDEBUG=1"
 fi
-  
+
 if test "$wamprofile" = "yes"
   then
   YAP_EXTRAS="$YAP_EXTRAS -DANALYST=1"
 fi
-  
+
 if test "$depthlimit" = "yes"
   then
   YAP_EXTRAS="$YAP_EXTRAS -DDEPTH_LIMIT=1"
 fi
-  
+
 if test "$lowleveltracer" = "yes"
   then
   YAP_EXTRAS="$YAP_EXTRAS -DLOW_LEVEL_TRACER=1"
 fi
-  
+
 case "$orparallelism" in
   sba)
    YAP_EXTRAS="$YAP_EXTRAS -DSBA=1"
@@ -2075,46 +3257,57 @@ case "$tabling" in
   ;;
 esac
 
-echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:2080: checking for ANSI C header files" >&5
-if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:3260: 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 <<EOF
-#line 2085 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3266 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
 #include <float.h>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2093: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
+
+_ACEOF
+if { (eval echo "$as_me:3274: \"$ac_cpp conftest.$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:3280: \$? = $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 "$ac_cpp_err"; then
   ac_cv_header_stdc=yes
 else
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
   ac_cv_header_stdc=no
 fi
-rm -f conftest*
+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 <<EOF
-#line 2110 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3302 "configure"
 #include "confdefs.h"
 #include <string.h>
-EOF
+
+_ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
   egrep "memchr" >/dev/null 2>&1; then
   :
 else
-  rm -rf conftest*
   ac_cv_header_stdc=no
 fi
 rm -f conftest*
@@ -2123,16 +3316,16 @@ 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 <<EOF
-#line 2128 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3320 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
-EOF
+
+_ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
   egrep "free" >/dev/null 2>&1; then
   :
 else
-  rm -rf conftest*
   ac_cv_header_stdc=no
 fi
 rm -f conftest*
@@ -2141,769 +3334,2423 @@ 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
+  if test "$cross_compiling" = yes; then
   :
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2149 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3341 "configure"
 #include "confdefs.h"
 #include <ctype.h>
-#define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-#define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#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); }
+#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
 
-EOF
-if { (eval echo configure:2160: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
+#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:3367: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:3370: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:3372: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:3375: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   :
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
-  ac_cv_header_stdc=no
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_header_stdc=no
 fi
-rm -fr conftest*
-fi
-
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
 fi
 fi
-
-echo "$ac_t""$ac_cv_header_stdc" 1>&6
+fi
+echo "$as_me:3388: 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 <<\EOF
 #define STDC_HEADERS 1
 EOF
 
 fi
 
-echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6
-echo "configure:2184: checking for sys/wait.h that is POSIX.1 compatible" >&5
-if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:3398: 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 <<EOF
-#line 2189 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3404 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
 #ifndef WEXITSTATUS
-#define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
+# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
 #endif
 #ifndef WIFEXITED
-#define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
+# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
 #endif
-int main() {
-int s;
-wait (&s);
-s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
-; return 0; }
-EOF
-if { (eval echo configure:2205: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
+
+int
+main ()
+{
+  int s;
+  wait (&s);
+  s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:3426: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:3429: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:3432: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:3435: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   ac_cv_header_sys_wait_h=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  ac_cv_header_sys_wait_h=no
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_header_sys_wait_h=no
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-
-echo "$ac_t""$ac_cv_header_sys_wait_h" 1>&6
+echo "$as_me:3445: 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 <<\EOF
 #define HAVE_SYS_WAIT_H 1
 EOF
 
 fi
 
-for ac_hdr in fcntl.h sys/file.h sys/socket.h sys/types.h sys/time.h
+for ac_header in fcntl.h sys/file.h sys/socket.h sys/types.h sys/time.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2229: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3458: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2234 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3464 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2239: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3468: \"$ac_cpp conftest.$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:3474: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3493: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
-for ac_hdr in sys/ucontext.h sys/un.h unistd.h sys/times.h ieeefp.h
+for ac_header in sys/ucontext.h sys/un.h unistd.h sys/times.h ieeefp.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2269: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3506: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2274 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3512 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2279: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3516: \"$ac_cpp conftest.$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:3522: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3541: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
-for ac_hdr in sys/param.h errno.h netdb.h netinet/in.h arpa/inet.h
+for ac_header in sys/param.h errno.h netdb.h netinet/in.h arpa/inet.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2309: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3554: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2314 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3560 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2319: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3564: \"$ac_cpp conftest.$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:3570: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3589: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
-for ac_hdr in string.h memory.h sys/mman.h sys/stat.h stdarg.h ctype.h
+for ac_header in string.h memory.h sys/mman.h sys/stat.h stdarg.h ctype.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2349: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3602: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2354 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3608 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2359: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3612: \"$ac_cpp conftest.$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:3618: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3637: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
-for ac_hdr in sys/resource.h limits.h siginfo.h time.h fenv.h
+for ac_header in sys/resource.h limits.h siginfo.h time.h fenv.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2389: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3650: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2394 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3656 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2399: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3660: \"$ac_cpp conftest.$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:3666: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3685: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
-for ac_hdr in fpu_control.h sys/shm.h regex.h winsock.h winsock2.h
+for ac_header in fpu_control.h sys/shm.h regex.h winsock.h winsock2.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2429: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3698: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2434 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3704 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2439: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3708: \"$ac_cpp conftest.$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:3714: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3733: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
-for ac_hdr in sys/select.h direct.h dirent.h signal.h io.h
+for ac_header in sys/select.h direct.h dirent.h signal.h io.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2469: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3746: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2474 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3752 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2479: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3756: \"$ac_cpp conftest.$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:3762: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3781: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
 if test "$yap_cv_gmp" != "no"
 then
-  for ac_hdr in gmp.h
+
+for ac_header in gmp.h
 do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2511: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:3797: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2516 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3803 "configure"
 #include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2521: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=yes"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:3807: \"$ac_cpp conftest.$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:3813: \$? = $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
-  echo "$ac_err" >&5
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_header_$ac_safe=no"
+  eval "$ac_ac_Header=no"
 fi
-rm -f conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
+echo "$as_me:3832: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
 EOF
- 
-else
-  echo "$ac_t""no" 1>&6
+
 fi
 done
 
 fi
 
-echo $ac_n "checking for inline""... $ac_c" 1>&6
-echo "configure:2550: checking for inline" >&5
-if eval "test \"`echo '$''{'ac_cv_c_inline'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:3844: 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) $ECHO_C" >&6
+else
+  ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+#line 3852 "configure"
+#include "confdefs.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX			-qlanglvl=ansi
+# Ultrix and OSF/1	-std1
+# HP-UX 10.20 and later	-Ae
+# HP-UX older versions	-Aa -D_HPUX_SOURCE
+# SVR4			-Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  rm -f conftest.$ac_objext
+if { (eval echo "$as_me:3901: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:3904: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:3907: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:3910: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+  x|xno)
+    echo "$as_me:3927: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+  *)
+    echo "$as_me:3930: 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:3935: 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) $ECHO_C" >&6
 else
   ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
-  cat > conftest.$ac_ext <<EOF
-#line 2557 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3943 "configure"
 #include "confdefs.h"
+#ifndef __cplusplus
+static $ac_kw int static_foo () {return 0; }
+$ac_kw int foo () {return 0; }
+#endif
 
-int main() {
-} $ac_kw foo() {
-; return 0; }
-EOF
-if { (eval echo configure:2564: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:3952: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:3955: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:3958: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:3961: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   ac_cv_c_inline=$ac_kw; break
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest.$ac_ext
 done
 
 fi
-
-echo "$ac_t""$ac_cv_c_inline" 1>&6
-case "$ac_cv_c_inline" in
+echo "$as_me:3972: 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
-#define inline 
+  no)
+cat >>confdefs.h <<\EOF
+#define inline
 EOF
  ;;
-  *)  cat >> confdefs.h <<EOF
+  *)  cat >>confdefs.h <<EOF
 #define inline $ac_cv_c_inline
 EOF
  ;;
 esac
 
-echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:2590: checking whether struct tm is in sys/time.h or time.h" >&5
-if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:3987: 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 <<EOF
-#line 2595 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3993 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
-int main() {
+
+int
+main ()
+{
 struct tm *tp; tp->tm_sec;
-; return 0; }
-EOF
-if { (eval echo configure:2603: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4007: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4010: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4013: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4016: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   ac_cv_struct_tm=time.h
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  ac_cv_struct_tm=sys/time.h
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_struct_tm=sys/time.h
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-
-echo "$ac_t""$ac_cv_struct_tm" 1>&6
+echo "$as_me:4026: 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 <<\EOF
 #define TM_IN_SYS_TIME 1
 EOF
 
 fi
 
-echo $ac_n "checking size of int *""... $ac_c" 1>&6
-echo "configure:2624: checking size of int *" >&5
-if eval "test \"`echo '$''{'ac_cv_sizeof_int_p'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+for ac_header in stdlib.h string.h memory.h strings.h inttypes.h unistd.h
+do
+ac_ac_Header=`echo "ac_cv_header_$ac_header" | $ac_tr_sh`
+echo "$as_me:4039: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test "$cross_compiling" = yes; then
-  ac_cv_sizeof_int_p=4
-else
-  cat > conftest.$ac_ext <<EOF
-#line 2632 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4045 "configure"
 #include "confdefs.h"
-#include <stdio.h>
-main()
-{
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(int *));
-  exit(0);
-}
-EOF
-if { (eval echo configure:2643: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
-  ac_cv_sizeof_int_p=`cat conftestval`
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:4049: \"$ac_cpp conftest.$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:4055: \$? = $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
-  echo "configure: failed program was:" >&5
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$ac_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  rm -fr conftest*
-  ac_cv_sizeof_int_p=0
+  eval "$ac_ac_Header=no"
 fi
-rm -fr conftest*
+rm -f conftest.err conftest.$ac_ext
 fi
+echo "$as_me:4074: result: `eval echo '${'$ac_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_Header'}'`" >&6
+if test `eval echo '${'$ac_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $ac_tr_cpp` 1
+EOF
 
 fi
-echo "$ac_t""$ac_cv_sizeof_int_p" 1>&6
-cat >> confdefs.h <<EOF
+done
+
+echo "$as_me:4084: 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 4090 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+if ((int * *) 0)
+  return 0;
+if (sizeof (int *))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4105: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4108: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4111: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4114: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_int_p=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_int_p=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:4124: result: $ac_cv_type_int_p" >&5
+echo "${ECHO_T}$ac_cv_type_int_p" >&6
+
+echo "$as_me:4127: 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
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+#line 4136 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int *)) >= 0)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4148: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4151: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4154: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4157: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line 4162 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int *)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4174: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4177: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4180: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4183: \$? = $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 '*' $ac_mid + 1`
+fi
+rm -f conftest.$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 4199 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int *)) >= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4211: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4214: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4217: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4220: \$? = $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 '*' $ac_mid`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  done
+fi
+rm -f conftest.$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 4236 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int *)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4248: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4251: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4254: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4257: \$? = $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 $ac_mid + 1`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+ac_cv_sizeof_int_p=$ac_lo
+else
+  if test "$cross_compiling" = yes; then
+  { { echo "$as_me:4270: 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 4275 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+FILE *f = fopen ("conftest.val", "w");
+if (!f)
+  exit (1);
+fprintf (f, "%d", (sizeof (int *)));
+fclose (f);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:4291: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4294: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:4296: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4299: \$? = $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.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
+fi
+fi
+rm -f conftest.val
+else
+  ac_cv_sizeof_int_p=0
+fi
+fi
+echo "$as_me:4315: result: $ac_cv_sizeof_int_p" >&5
+echo "${ECHO_T}$ac_cv_sizeof_int_p" >&6
+cat >>confdefs.h <<EOF
 #define SIZEOF_INT_P $ac_cv_sizeof_int_p
 EOF
 
+echo "$as_me:4321: 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 4327 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+if ((short int *) 0)
+  return 0;
+if (sizeof (short int))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4342: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4345: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4348: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4351: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_short_int=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_short_int=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:4361: result: $ac_cv_type_short_int" >&5
+echo "${ECHO_T}$ac_cv_type_short_int" >&6
 
-echo $ac_n "checking size of short int""... $ac_c" 1>&6
-echo "configure:2663: checking size of short int" >&5
-if eval "test \"`echo '$''{'ac_cv_sizeof_short_int'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:4364: 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
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+#line 4373 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (short int)) >= 0)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4385: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4388: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4391: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4394: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line 4399 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (short int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4411: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4414: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4417: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4420: \$? = $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 '*' $ac_mid + 1`
+fi
+rm -f conftest.$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 4436 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (short int)) >= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4448: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4451: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4454: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4457: \$? = $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 '*' $ac_mid`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  done
+fi
+rm -f conftest.$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 4473 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (short int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4485: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4488: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4491: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4494: \$? = $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 $ac_mid + 1`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+ac_cv_sizeof_short_int=$ac_lo
 else
   if test "$cross_compiling" = yes; then
-  ac_cv_sizeof_short_int=2
+  { { echo "$as_me:4507: 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 <<EOF
-#line 2671 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4512 "configure"
 #include "confdefs.h"
-#include <stdio.h>
-main()
+$ac_includes_default
+int
+main ()
 {
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(short int));
-  exit(0);
+FILE *f = fopen ("conftest.val", "w");
+if (!f)
+  exit (1);
+fprintf (f, "%d", (sizeof (short int)));
+fclose (f);
+  ;
+  return 0;
 }
-EOF
-if { (eval echo configure:2682: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
-  ac_cv_sizeof_short_int=`cat conftestval`
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:4528: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4531: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:4533: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4536: \$? = $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.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
+fi
+fi
+rm -f conftest.val
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
   ac_cv_sizeof_short_int=0
 fi
-rm -fr conftest*
 fi
-
-fi
-echo "$ac_t""$ac_cv_sizeof_short_int" 1>&6
-cat >> confdefs.h <<EOF
+echo "$as_me:4552: result: $ac_cv_sizeof_short_int" >&5
+echo "${ECHO_T}$ac_cv_sizeof_short_int" >&6
+cat >>confdefs.h <<EOF
 #define SIZEOF_SHORT_INT $ac_cv_sizeof_short_int
 EOF
 
+echo "$as_me:4558: 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 4564 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+if ((int *) 0)
+  return 0;
+if (sizeof (int))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4579: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4582: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4585: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4588: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_int=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_int=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:4598: result: $ac_cv_type_int" >&5
+echo "${ECHO_T}$ac_cv_type_int" >&6
 
-echo $ac_n "checking size of int""... $ac_c" 1>&6
-echo "configure:2702: checking size of int" >&5
-if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:4601: 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
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+#line 4610 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int)) >= 0)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4622: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4625: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4628: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4631: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line 4636 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4648: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4651: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4654: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4657: \$? = $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 '*' $ac_mid + 1`
+fi
+rm -f conftest.$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 4673 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int)) >= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4685: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4688: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4691: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4694: \$? = $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 '*' $ac_mid`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  done
+fi
+rm -f conftest.$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 4710 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4722: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4725: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4728: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4731: \$? = $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 $ac_mid + 1`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+ac_cv_sizeof_int=$ac_lo
 else
   if test "$cross_compiling" = yes; then
-  ac_cv_sizeof_int=4
+  { { echo "$as_me:4744: 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 <<EOF
-#line 2710 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4749 "configure"
 #include "confdefs.h"
-#include <stdio.h>
-main()
+$ac_includes_default
+int
+main ()
 {
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(int));
-  exit(0);
+FILE *f = fopen ("conftest.val", "w");
+if (!f)
+  exit (1);
+fprintf (f, "%d", (sizeof (int)));
+fclose (f);
+  ;
+  return 0;
 }
-EOF
-if { (eval echo configure:2721: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
-  ac_cv_sizeof_int=`cat conftestval`
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:4765: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4768: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:4770: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4773: \$? = $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.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
+fi
+fi
+rm -f conftest.val
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
   ac_cv_sizeof_int=0
 fi
-rm -fr conftest*
 fi
-
-fi
-echo "$ac_t""$ac_cv_sizeof_int" 1>&6
-cat >> confdefs.h <<EOF
+echo "$as_me:4789: result: $ac_cv_sizeof_int" >&5
+echo "${ECHO_T}$ac_cv_sizeof_int" >&6
+cat >>confdefs.h <<EOF
 #define SIZEOF_INT $ac_cv_sizeof_int
 EOF
 
+echo "$as_me:4795: 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 4801 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+if ((long int *) 0)
+  return 0;
+if (sizeof (long int))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4816: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4819: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4822: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4825: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_long_int=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_long_int=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:4835: result: $ac_cv_type_long_int" >&5
+echo "${ECHO_T}$ac_cv_type_long_int" >&6
 
-echo $ac_n "checking size of long int""... $ac_c" 1>&6
-echo "configure:2741: checking size of long int" >&5
-if eval "test \"`echo '$''{'ac_cv_sizeof_long_int'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:4838: 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
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+#line 4847 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long int)) >= 0)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4859: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4862: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4865: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4868: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line 4873 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4885: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4888: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4891: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4894: \$? = $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 '*' $ac_mid + 1`
+fi
+rm -f conftest.$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 4910 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long int)) >= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4922: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4925: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4928: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4931: \$? = $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 '*' $ac_mid`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  done
+fi
+rm -f conftest.$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 4947 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4959: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4962: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4965: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4968: \$? = $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 $ac_mid + 1`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+ac_cv_sizeof_long_int=$ac_lo
 else
   if test "$cross_compiling" = yes; then
-  ac_cv_sizeof_long_int=4
+  { { echo "$as_me:4981: 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 <<EOF
-#line 2749 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4986 "configure"
 #include "confdefs.h"
-#include <stdio.h>
-main()
+$ac_includes_default
+int
+main ()
 {
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(long int));
-  exit(0);
+FILE *f = fopen ("conftest.val", "w");
+if (!f)
+  exit (1);
+fprintf (f, "%d", (sizeof (long int)));
+fclose (f);
+  ;
+  return 0;
 }
-EOF
-if { (eval echo configure:2760: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
-  ac_cv_sizeof_long_int=`cat conftestval`
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5002: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5005: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5007: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5010: \$? = $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.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
+fi
+fi
+rm -f conftest.val
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
   ac_cv_sizeof_long_int=0
 fi
-rm -fr conftest*
 fi
-
-fi
-echo "$ac_t""$ac_cv_sizeof_long_int" 1>&6
-cat >> confdefs.h <<EOF
+echo "$as_me:5026: result: $ac_cv_sizeof_long_int" >&5
+echo "${ECHO_T}$ac_cv_sizeof_long_int" >&6
+cat >>confdefs.h <<EOF
 #define SIZEOF_LONG_INT $ac_cv_sizeof_long_int
 EOF
 
+echo "$as_me:5032: 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 5038 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+if ((long long int *) 0)
+  return 0;
+if (sizeof (long long int))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5053: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5056: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5059: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5062: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_long_long_int=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_long_long_int=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:5072: result: $ac_cv_type_long_long_int" >&5
+echo "${ECHO_T}$ac_cv_type_long_long_int" >&6
 
-echo $ac_n "checking size of long long int""... $ac_c" 1>&6
-echo "configure:2780: checking size of long long int" >&5
-if eval "test \"`echo '$''{'ac_cv_sizeof_long_long_int'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5075: 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
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+#line 5084 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long long int)) >= 0)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5096: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5099: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5102: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5105: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line 5110 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long long int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5122: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5125: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5128: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5131: \$? = $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 '*' $ac_mid + 1`
+fi
+rm -f conftest.$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 5147 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long long int)) >= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5159: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5162: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5165: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5168: \$? = $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 '*' $ac_mid`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  done
+fi
+rm -f conftest.$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 5184 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (long long int)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5196: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5199: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5202: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5205: \$? = $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 $ac_mid + 1`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+ac_cv_sizeof_long_long_int=$ac_lo
 else
   if test "$cross_compiling" = yes; then
-  ac_cv_sizeof_long_long_int=8
+  { { echo "$as_me:5218: 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 <<EOF
-#line 2788 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5223 "configure"
 #include "confdefs.h"
-#include <stdio.h>
-main()
+$ac_includes_default
+int
+main ()
 {
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(long long int));
-  exit(0);
+FILE *f = fopen ("conftest.val", "w");
+if (!f)
+  exit (1);
+fprintf (f, "%d", (sizeof (long long int)));
+fclose (f);
+  ;
+  return 0;
 }
-EOF
-if { (eval echo configure:2799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
-  ac_cv_sizeof_long_long_int=`cat conftestval`
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5239: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5242: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5244: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5247: \$? = $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.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
+fi
+fi
+rm -f conftest.val
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
   ac_cv_sizeof_long_long_int=0
 fi
-rm -fr conftest*
 fi
-
-fi
-echo "$ac_t""$ac_cv_sizeof_long_long_int" 1>&6
-cat >> confdefs.h <<EOF
+echo "$as_me:5263: result: $ac_cv_sizeof_long_long_int" >&5
+echo "${ECHO_T}$ac_cv_sizeof_long_long_int" >&6
+cat >>confdefs.h <<EOF
 #define SIZEOF_LONG_LONG_INT $ac_cv_sizeof_long_long_int
 EOF
 
+echo "$as_me:5269: 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 5275 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+if ((float *) 0)
+  return 0;
+if (sizeof (float))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5290: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5293: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5296: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5299: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_float=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_float=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:5309: result: $ac_cv_type_float" >&5
+echo "${ECHO_T}$ac_cv_type_float" >&6
 
-echo $ac_n "checking size of float""... $ac_c" 1>&6
-echo "configure:2819: checking size of float" >&5
-if eval "test \"`echo '$''{'ac_cv_sizeof_float'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5312: 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
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+#line 5321 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (float)) >= 0)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5333: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5336: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5339: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5342: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line 5347 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (float)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5359: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5362: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5365: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5368: \$? = $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 '*' $ac_mid + 1`
+fi
+rm -f conftest.$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 5384 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (float)) >= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5396: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5399: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5402: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5405: \$? = $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 '*' $ac_mid`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  done
+fi
+rm -f conftest.$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 5421 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (float)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5433: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5436: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5439: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5442: \$? = $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 $ac_mid + 1`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+ac_cv_sizeof_float=$ac_lo
 else
   if test "$cross_compiling" = yes; then
-  ac_cv_sizeof_float=4
+  { { echo "$as_me:5455: 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 <<EOF
-#line 2827 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5460 "configure"
 #include "confdefs.h"
-#include <stdio.h>
-main()
+$ac_includes_default
+int
+main ()
 {
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(float));
-  exit(0);
+FILE *f = fopen ("conftest.val", "w");
+if (!f)
+  exit (1);
+fprintf (f, "%d", (sizeof (float)));
+fclose (f);
+  ;
+  return 0;
 }
-EOF
-if { (eval echo configure:2838: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
-  ac_cv_sizeof_float=`cat conftestval`
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5476: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5479: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5481: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5484: \$? = $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.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
+fi
+fi
+rm -f conftest.val
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
   ac_cv_sizeof_float=0
 fi
-rm -fr conftest*
 fi
-
-fi
-echo "$ac_t""$ac_cv_sizeof_float" 1>&6
-cat >> confdefs.h <<EOF
+echo "$as_me:5500: result: $ac_cv_sizeof_float" >&5
+echo "${ECHO_T}$ac_cv_sizeof_float" >&6
+cat >>confdefs.h <<EOF
 #define SIZEOF_FLOAT $ac_cv_sizeof_float
 EOF
 
+echo "$as_me:5506: 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 5512 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+if ((double *) 0)
+  return 0;
+if (sizeof (double))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5527: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5530: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5533: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5536: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_double=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_double=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:5546: result: $ac_cv_type_double" >&5
+echo "${ECHO_T}$ac_cv_type_double" >&6
 
-echo $ac_n "checking size of double""... $ac_c" 1>&6
-echo "configure:2858: checking size of double" >&5
-if eval "test \"`echo '$''{'ac_cv_sizeof_double'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5549: 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
+  if test "$cross_compiling" = yes; then
+  # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+#line 5558 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (double)) >= 0)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5570: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5573: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5576: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5579: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat >conftest.$ac_ext <<_ACEOF
+#line 5584 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (double)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5596: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5599: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5602: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5605: \$? = $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 '*' $ac_mid + 1`
+fi
+rm -f conftest.$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 5621 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (double)) >= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5633: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5636: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5639: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5642: \$? = $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 '*' $ac_mid`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+  done
+fi
+rm -f conftest.$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 5658 "configure"
+#include "confdefs.h"
+$ac_includes_default
+int
+main ()
+{
+int _array_ [1 - 2 * !((sizeof (double)) <= $ac_mid)]
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5670: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5673: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5676: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5679: \$? = $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 $ac_mid + 1`
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+ac_cv_sizeof_double=$ac_lo
 else
   if test "$cross_compiling" = yes; then
-  ac_cv_sizeof_double=8
+  { { echo "$as_me:5692: 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 <<EOF
-#line 2866 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5697 "configure"
 #include "confdefs.h"
-#include <stdio.h>
-main()
+$ac_includes_default
+int
+main ()
 {
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(double));
-  exit(0);
+FILE *f = fopen ("conftest.val", "w");
+if (!f)
+  exit (1);
+fprintf (f, "%d", (sizeof (double)));
+fclose (f);
+  ;
+  return 0;
 }
-EOF
-if { (eval echo configure:2877: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
-  ac_cv_sizeof_double=`cat conftestval`
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5713: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5716: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5718: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5721: \$? = $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.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
+fi
+fi
+rm -f conftest.val
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
   ac_cv_sizeof_double=0
 fi
-rm -fr conftest*
 fi
-
-fi
-echo "$ac_t""$ac_cv_sizeof_double" 1>&6
-cat >> confdefs.h <<EOF
+echo "$as_me:5737: result: $ac_cv_sizeof_double" >&5
+echo "${ECHO_T}$ac_cv_sizeof_double" >&6
+cat >>confdefs.h <<EOF
 #define SIZEOF_DOUBLE $ac_cv_sizeof_double
 EOF
 
-
-
-echo $ac_n "checking for type of malloc""... $ac_c" 1>&6
-echo "configure:2898: checking for type of malloc" >&5
-if eval "test \"`echo '$''{'yap_cv_malloct'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5743: 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) $ECHO_C" >&6
 else
-  
+
 if test "$cross_compiling" = yes; then
   yap_cv_malloct=void
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2907 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5753 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 	char *malloc(size_t);
@@ -2911,148 +5758,168 @@ else
 	   void *p=malloc(1);
 	   return 0;
 	}
-	
-EOF
-if { (eval echo configure:2917: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5764: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5767: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5769: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5772: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   yap_cv_malloct=char
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
-  yap_cv_malloct=void
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+yap_cv_malloct=void
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
 fi
-rm -fr conftest*
 fi
 
-fi
-
-echo "$ac_t""$yap_cv_malloct *" 1>&6
+echo "$as_me:5785: 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 <<\EOF
 #define MALLOC_T void *
 EOF
 
-else cat >> confdefs.h <<\EOF
+else cat >>confdefs.h <<\EOF
 #define MALLOC_T char *
 EOF
 
 fi
 
-
-echo $ac_n "checking for gcc inline""... $ac_c" 1>&6
-echo "configure:2945: checking for gcc inline" >&5
-if eval "test \"`echo '$''{'yap_cv_gcc'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5798: 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) $ECHO_C" >&6
 else
-  
+
 if test "$cross_compiling" = yes; then
   yap_cv_gcc=yes
 else
-  cat > conftest.$ac_ext <<EOF
-#line 2954 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5808 "configure"
 #include "confdefs.h"
 #undef inline
 	inline int f(int x) {return x+1;}
 	int main() { return 0;}
-	
-EOF
-if { (eval echo configure:2961: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5816: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5819: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5821: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5824: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   yap_cv_gcc=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
-  yap_cv_gcc=no
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+yap_cv_gcc=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
 fi
-rm -fr conftest*
 fi
 
-fi
-
-echo "$ac_t""$yap_cv_gcc" 1>&6
-if test $yap_cv_gcc = yes 
+echo "$as_me:5837: 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 <<\EOF
 #define HAVE_GCC 1
 EOF
 
 else
 M4GENHDRS=m4/cc_genhdrs.m4
-cat >> confdefs.h <<\EOF
+cat >>confdefs.h <<\EOF
 #define HAVE_GCC 0
 EOF
 
 fi
 
-
-
-
-echo $ac_n "checking for gcc threaded code""... $ac_c" 1>&6
-echo "configure:2995: checking for gcc threaded code" >&5
-if eval "test \"`echo '$''{'yap_cv_threaded_code'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5854: 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) $ECHO_C" >&6
 else
-  
+
 if test "$cross_compiling" = yes; then
   yap_cv_threaded_code=yes
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3004 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5864 "configure"
 #include "confdefs.h"
 int main() {
 	void *t = &&l2;
 	l1: goto *t;
 	l2: return 0;
 }
-	
-EOF
-if { (eval echo configure:3013: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5874: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5877: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5879: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5882: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   yap_cv_threaded_code=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
-  yap_cv_threaded_code=no
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+yap_cv_threaded_code=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
 fi
-rm -fr conftest*
 fi
 
-fi
-
-echo "$ac_t""$yap_cv_threaded_code" 1>&6
+echo "$as_me:5895: 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 <<\EOF
 #define USE_THREADED_CODE 1
 EOF
 
 	M4GENABSMI=gen_gcc.m4
-else	
-	cat >> confdefs.h <<\EOF
+else
+	cat >>confdefs.h <<\EOF
 #define USE_THREADED_CODE 0
 EOF
 
 	M4GENABSMI=gen_ansi.m4
 fi
 
-
-
-
-echo $ac_n "checking for IEEE floats""... $ac_c" 1>&6
-echo "configure:3047: checking for IEEE floats" >&5
-if eval "test \"`echo '$''{'yap_cv_ffieee'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5912: 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) $ECHO_C" >&6
 else
-  
+
 if test "$cross_compiling" = yes; then
   yap_cv_ffieee=yes
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3056 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5922 "configure"
 #include "confdefs.h"
 int main() {
 	  union { float f; int i} a;
@@ -3060,199 +5927,264 @@ int main() {
 	  if (a.i==0x3f800000) return 0;
 	  return 1;
 	}
-	
-EOF
-if { (eval echo configure:3066: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5933: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5936: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5938: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5941: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   yap_cv_ffieee=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -fr conftest*
-  yap_cv_ffieee=no
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+yap_cv_ffieee=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_ext
 fi
-rm -fr conftest*
 fi
 
-fi
-
-echo "$ac_t""$yap_cv_ffieee" 1>&6
-if test $yap_cv_ffieee = yes 
+echo "$as_me:5954: 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 <<\EOF
 #define FFIEEE 1
 EOF
 
 else
-cat >> confdefs.h <<\EOF
+cat >>confdefs.h <<\EOF
 #define FFIEEE 0
 EOF
 
 fi
 
-echo $ac_n "checking for sigsetjmp""... $ac_c" 1>&6
-echo "configure:3095: checking for sigsetjmp" >&5
-if eval "test \"`echo '$''{'yap_sigsetjmp'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:5969: 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 <<EOF
-#line 3101 "configure"
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 5976 "configure"
 #include "confdefs.h"
 #include <setjmp.h>
-	
-int main() {
+
+int
+main ()
+{
 sigjmp_buf         RestartEnv;
 
 	siglongjmp (RestartEnv, 1);
-	
-; return 0; }
-EOF
-if { (eval echo configure:3112: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5992: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5995: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5998: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6001: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   yap_sigsetjmp=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  yap_sigsetjmp=no
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+yap_sigsetjmp=no
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 
-echo "$ac_t""$yap_sigsetjmp" 1>&6
-if test $yap_sigsetjmp = yes 
+echo "$as_me:6012: result: $yap_sigsetjmp" >&5
+echo "${ECHO_T}$yap_sigsetjmp" >&6
+if test $yap_sigsetjmp = yes
 then
-cat >> confdefs.h <<\EOF
+cat >>confdefs.h <<\EOF
 #define HAVE_SIGSETJMP 1
 EOF
 
 else
-cat >> confdefs.h <<\EOF
+cat >>confdefs.h <<\EOF
 #define HAVE_SIGSETJMP 0
 EOF
 
 fi
 
-echo $ac_n "checking for sigsegv""... $ac_c" 1>&6
-echo "configure:3139: checking for sigsegv" >&5
-if eval "test \"`echo '$''{'yap_sigsegv'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:6027: 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 <<EOF
-#line 3145 "configure"
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 6034 "configure"
 #include "confdefs.h"
 #include <signal.h>
 	#include <stdio.h>
-	
-int main() {
+
+int
+main ()
+{
 printf("Signal value is %d\n", SIGSEGV);
-	
-; return 0; }
-EOF
-if { (eval echo configure:3155: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:6049: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:6052: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:6055: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6058: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   yap_sigsegv=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  yap_sigsegv=no
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+yap_sigsegv=no
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 
-echo "$ac_t""$yap_sigsegv" 1>&6
-if test $yap_sigsegv = yes 
+echo "$as_me:6069: result: $yap_sigsegv" >&5
+echo "${ECHO_T}$yap_sigsegv" >&6
+if test $yap_sigsegv = yes
 then
-cat >> confdefs.h <<\EOF
+cat >>confdefs.h <<\EOF
 #define HAVE_SIGSEGV 1
 EOF
 
 else
-cat >> confdefs.h <<\EOF
+cat >>confdefs.h <<\EOF
 #define HAVE_SIGSEGV 0
 EOF
 
 fi
 
-echo $ac_n "checking union wait""... $ac_c" 1>&6
-echo "configure:3182: checking union wait" >&5
-cat > conftest.$ac_ext <<EOF
-#line 3184 "configure"
+echo "$as_me:6084: checking union wait" >&5
+echo $ECHO_N "checking union wait... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line 6087 "configure"
 #include "confdefs.h"
-#include <sys/types.h> 
+#include <sys/types.h>
 #include <sys/wait.h>
-int main() {
+int
+main ()
+{
 
 union wait x;
 wait(&x);		/* make sure we can compile wait */
 WIFEXITED(x);		/* Generates compiler error if WIFEXITED
 			 * uses an int. */
 
-; return 0; }
-EOF
-if { (eval echo configure:3197: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6105: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6108: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6111: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6114: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   union_wait_ok=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  union_wait_ok=no
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+union_wait_ok=no
 fi
-rm -f conftest*
-echo "$ac_t""$union_wait_ok" 1>&6
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+echo "$as_me:6123: 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 <<\EOF
 #define NO_UNION_WAIT 1
 EOF
 
 fi
 
-echo $ac_n "checking environ""... $ac_c" 1>&6
-echo "configure:3216: checking environ" >&5
-cat > conftest.$ac_ext <<EOF
-#line 3218 "configure"
+echo "$as_me:6132: checking environ" >&5
+echo $ECHO_N "checking environ... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line 6135 "configure"
 #include "confdefs.h"
 
-int main() {
+int
+main ()
+{
 
 extern char **environ;
 
-; return 0; }
-EOF
-if { (eval echo configure:3227: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6149: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6152: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6155: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6158: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   environ_ok=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  environ_ok=no
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+environ_ok=no
 fi
-rm -f conftest*
-echo "$ac_t""$environ_ok" 1>&6
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+echo "$as_me:6167: result: $environ_ok" >&5
+echo "${ECHO_T}$environ_ok" >&6
 if test $environ_ok = yes; then
-    cat >> confdefs.h <<\EOF
+    cat >>confdefs.h <<\EOF
 #define HAVE_ENVIRON 1
 EOF
 
 fi
 
-echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
-echo "configure:3246: checking return type of signal handlers" >&5
-if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:6176: 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 <<EOF
-#line 3251 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6182 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
 #ifdef signal
-#undef signal
+# undef signal
 #endif
 #ifdef __cplusplus
 extern "C" void (*signal (int, void (*)(int)))(int);
@@ -3260,563 +6192,715 @@ extern "C" void (*signal (int, void (*)(int)))(int);
 void (*signal ()) ();
 #endif
 
-int main() {
+int
+main ()
+{
 int i;
-; return 0; }
-EOF
-if { (eval echo configure:3268: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:6204: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:6207: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:6210: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6213: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   ac_cv_type_signal=void
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  ac_cv_type_signal=int
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_signal=int
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
+echo "$as_me:6223: result: $ac_cv_type_signal" >&5
+echo "${ECHO_T}$ac_cv_type_signal" >&6
 
-echo "$ac_t""$ac_cv_type_signal" 1>&6
-cat >> confdefs.h <<EOF
+cat >>confdefs.h <<EOF
 #define RETSIGTYPE $ac_cv_type_signal
 EOF
 
-
 for ac_func in getcwd getwd strtod getrusage chdir signal times siggetmask
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3289: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6233: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3294 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6239 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3317: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6270: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6273: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6276: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6279: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6289: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in strchr memcpy isatty sbrk shmat mmap random rand sigaction
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3344: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6302: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3349 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6308 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3372: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6339: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6342: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6345: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6348: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6358: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in snprintf vsnprintf setbuf system link getpwnam dup2 sigprocmask
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3399: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6371: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3404 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6377 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3427: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6408: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6411: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6414: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6417: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6427: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in labs strncat tmpnam getenv gettimeofday gethrtime putenv
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3454: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6440: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3459 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6446 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3482: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6477: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6480: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6483: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6486: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6496: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in strerror socket memmove alarm asinh acosh atanh rint
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3509: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6509: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3514 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6515 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3537: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6546: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6549: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6552: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6555: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6565: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in stat select fetestexcept finite strncpy mkstemp isnan
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3564: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6578: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3569 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6584 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3592: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6615: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6618: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6621: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6624: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6634: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in setlinebuf lstat opendir localtime time gethostname
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3619: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6647: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3624 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6653 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3647: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6684: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6687: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6690: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6693: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6703: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in gethostid gethostbyname kill mktemp popen rename waitpid
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3674: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6716: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3679 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6722 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3702: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6753: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6756: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6759: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6762: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6772: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
 for ac_func in sleep usleep
 do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3729: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+ac_ac_var=`echo "ac_cv_func_$ac_func" | $ac_tr_sh`
+echo "$as_me:6785: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$ac_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat > conftest.$ac_ext <<EOF
-#line 3734 "configure"
+  cat >conftest.$ac_ext <<_ACEOF
+#line 6791 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func(); below.  */
+    which can conflict with char $ac_func (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 /* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char $ac_func();
-
-int main() {
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+char (*f) ();
 
+int
+main ()
+{
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
 #if defined (__stub_$ac_func) || defined (__stub___$ac_func)
 choke me
 #else
-$ac_func();
+f = $ac_func;
 #endif
 
-; return 0; }
-EOF
-if { (eval echo configure:3757: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=yes"
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6822: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6825: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6828: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6831: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$ac_ac_var=yes"
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_func_$ac_func=no"
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$ac_ac_var=no"
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
+echo "$as_me:6841: result: `eval echo '${'$ac_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$ac_ac_var'}'`" >&6
+if test `eval echo '${'$ac_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $ac_tr_cpp` 1
+EOF
 
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-    ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-  cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
- 
-else
-  echo "$ac_t""no" 1>&6
 fi
 done
 
-
-echo $ac_n "checking for mpz_xor""... $ac_c" 1>&6
-echo "configure:3783: checking for mpz_xor" >&5
-if eval "test \"`echo '$''{'yap_mpz_xor'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+echo "$as_me:6851: 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 <<EOF
-#line 3789 "configure"
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 6858 "configure"
 #include "confdefs.h"
 #include <gmp.h>
 	void check(mpz_t rop,mpz_t op1,mpz_t op2) {
 	  mpz_xor(rop,op1,op2);
 	}
-	
-int main() {
 
-; return 0; }
-EOF
-if { (eval echo configure:3800: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  rm -rf conftest*
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:6874: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:6877: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:6880: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:6883: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
   yap_mpz_xor=yes
 else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  yap_mpz_xor=no
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+yap_mpz_xor=no
 fi
-rm -f conftest*
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
 
-echo "$ac_t""$yap_mpz_xor" 1>&6
-if test $yap_mpz_xor = yes 
+echo "$as_me:6894: 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 <<\EOF
 #define HAVE_MPZ_XOR 1
 EOF
 
 else
-cat >> confdefs.h <<\EOF
+cat >>confdefs.h <<\EOF
 #define HAVE_MPZ_XOR 0
 EOF
 
@@ -3827,395 +6911,841 @@ mkdir -p  library/system
 mkdir -p  CHR
 mkdir -p  CLPQR
 
-trap '' 1 2 15
-cat > confcache <<\EOF
+ac_config_files="$ac_config_files Makefile library/regex/Makefile library/system/Makefile .depend library/Makefile CHR/Makefile CLPQR/Makefile"
+cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
 # tests run on this system so they can be shared between configure
-# scripts and configure runs.  It is not useful on other systems.
-# If it contains results you don't want to keep, you may remove or edit it.
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
 #
-# By default, configure uses ./config.cache as the cache file,
-# creating it if it does not exist already.  You can give configure
-# the --cache-file=FILE option to use a different cache file; that is
-# what configure does when it calls configure scripts in
-# subdirectories, so they share the cache.
-# Giving --cache-file=/dev/null disables caching, for debugging configure.
-# config.status only pays attention to the cache file if you give it the
-# --recheck option to rerun configure.
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
 #
-EOF
+# `ac_cv_env_foo' variables (set or unset) will be overriden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
 # The following way of writing the cache mishandles newlines in values,
 # but we know of no workaround that is simple, portable, and efficient.
 # So, don't put newlines in cache variables' values.
 # Ultrix sh set writes to stderr and can't be redirected directly,
 # and sets the high bit in the cache file unless we assign to the vars.
-(set) 2>&1 |
-  case `(ac_space=' '; set | grep ac_space) 2>&1` in
-  *ac_space=\ *)
-    # `set' does not quote correctly, so add quotes (double-quote substitution
-    # turns \\\\ into \\, and sed turns \\ into \).
-    sed -n \
-      -e "s/'/'\\\\''/g" \
-      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
-    ;;
-  *)
-    # `set' quotes correctly as required by POSIX, so do not add quotes.
-    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
-    ;;
-  esac >> confcache
-if cmp -s $cache_file confcache; then
-  :
-else
+{
+  (set) 2>&1 |
+    case `(ac_space=' '; set | grep ac_space) 2>&1` in
+    *ac_space=\ *)
+      # `set' does not quote correctly, so add quotes (double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \).
+      sed -n \
+        "s/'/'\\\\''/g;
+    	  s/^\\([_$ac_cr_alnum]*_cv_[_$ac_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;;
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n \
+        "s/^\\([_$ac_cr_alnum]*_cv_[_$ac_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+      ;;
+    esac;
+} |
+  sed '
+     t clear
+     : clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     : end' >>confcache
+if cmp -s $cache_file confcache; then :; else
   if test -w $cache_file; then
-    echo "updating cache $cache_file"
-    cat confcache > $cache_file
+    test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
+    cat confcache >$cache_file
   else
     echo "not updating unwritable cache $cache_file"
   fi
 fi
 rm -f confcache
 
-trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
-
 test "x$prefix" = xNONE && prefix=$ac_default_prefix
 # Let make expand exec_prefix.
 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
 
-# Any assignment to VPATH causes Sun make to only execute
-# the first set of double-colon rules, so remove it if not needed.
-# If there is a colon in the path, we need to keep it.
+# VPATH may cause trouble with some makes, so we remove $(srcdir),
+# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
 if test "x$srcdir" = x.; then
-  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
+  ac_vpsub='/^[ 	]*VPATH[ 	]*=/{
+s/:*\$(srcdir):*/:/;
+s/:*\${srcdir}:*/:/;
+s/:*@srcdir@:*/:/;
+s/^\([^=]*=[ 	]*\):*/\1/;
+s/:*$//;
+s/^[^=]*=[ 	]*$//;
+}'
 fi
 
-trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
-
 DEFS=-DHAVE_CONFIG_H
 
-# Without the "./", some shells look in PATH for config.status.
 : ${CONFIG_STATUS=./config.status}
-
-echo creating $CONFIG_STATUS
-rm -f $CONFIG_STATUS
-cat > $CONFIG_STATUS <<EOF
-#! /bin/sh
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ echo "$as_me:6994: creating $CONFIG_STATUS" >&5
+echo "$as_me: creating $CONFIG_STATUS" >&6;}
+cat >$CONFIG_STATUS <<_ACEOF
+#! $SHELL
 # Generated automatically by configure.
 # Run this file to recreate the current configuration.
-# This directory was configured as follows,
-# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
-#
-# $0 $ac_configure_args
-#
 # Compiler output produced by configure, useful for debugging
-# configure, is in ./config.log if it exists.
+# configure, is in config.log if it exists.
 
-ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
-for ac_option
-do
-  case "\$ac_option" in
-  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
-    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
-    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
-  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
-    echo "$CONFIG_STATUS generated by autoconf version 2.13"
-    exit 0 ;;
-  -help | --help | --hel | --he | --h)
-    echo "\$ac_cs_usage"; exit 0 ;;
-  *) echo "\$ac_cs_usage"; exit 1 ;;
-  esac
-done
+debug=false
+SHELL=\${CONFIG_SHELL-$SHELL}
+ac_cs_invocation="\$0 \$@"
 
-ac_given_srcdir=$srcdir
-ac_given_INSTALL="$INSTALL"
+_ACEOF
 
-trap 'rm -fr `echo "Makefile library/regex/Makefile library/system/Makefile  .depend library/Makefile CHR/Makefile CLPQR/Makefile config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
-EOF
-cat >> $CONFIG_STATUS <<EOF
-
-# Protect against being on the right side of a sed subst in config.status.
-sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
- s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
-$ac_vpsub
-$extrasub
-s%@SHELL@%$SHELL%g
-s%@CFLAGS@%$CFLAGS%g
-s%@CPPFLAGS@%$CPPFLAGS%g
-s%@CXXFLAGS@%$CXXFLAGS%g
-s%@FFLAGS@%$FFLAGS%g
-s%@DEFS@%$DEFS%g
-s%@LDFLAGS@%$LDFLAGS%g
-s%@LIBS@%$LIBS%g
-s%@exec_prefix@%$exec_prefix%g
-s%@prefix@%$prefix%g
-s%@program_transform_name@%$program_transform_name%g
-s%@bindir@%$bindir%g
-s%@sbindir@%$sbindir%g
-s%@libexecdir@%$libexecdir%g
-s%@datadir@%$datadir%g
-s%@sysconfdir@%$sysconfdir%g
-s%@sharedstatedir@%$sharedstatedir%g
-s%@localstatedir@%$localstatedir%g
-s%@libdir@%$libdir%g
-s%@includedir@%$includedir%g
-s%@oldincludedir@%$oldincludedir%g
-s%@infodir@%$infodir%g
-s%@mandir@%$mandir%g
-s%@CC@%$CC%g
-s%@GCC@%$GCC%g
-s%@C_INTERF_FLAGS@%$C_INTERF_FLAGS%g
-s%@CPP@%$CPP%g
-s%@LN_S@%$LN_S%g
-s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
-s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
-s%@INSTALL_DATA@%$INSTALL_DATA%g
-s%@RANLIB@%$RANLIB%g
-s%@INDENT@%$INDENT%g
-s%@INSTALL_INFO@%$INSTALL_INFO%g
-s%@host@%$host%g
-s%@host_alias@%$host_alias%g
-s%@host_cpu@%$host_cpu%g
-s%@host_vendor@%$host_vendor%g
-s%@host_os@%$host_os%g
-s%@target@%$target%g
-s%@target_alias@%$target_alias%g
-s%@target_cpu@%$target_cpu%g
-s%@target_vendor@%$target_vendor%g
-s%@target_os@%$target_os%g
-s%@build@%$build%g
-s%@build_alias@%$build_alias%g
-s%@build_cpu@%$build_cpu%g
-s%@build_vendor@%$build_vendor%g
-s%@build_os@%$build_os%g
-s%@INSTALL_COMMAND@%$INSTALL_COMMAND%g
-s%@INSTALL_DLLS@%$INSTALL_DLLS%g
-s%@SHLIB_CFLAGS@%$SHLIB_CFLAGS%g
-s%@SHLIB_SUFFIX@%$SHLIB_SUFFIX%g
-s%@SHLIB_LD@%$SHLIB_LD%g
-s%@NEWSHOBJ@%$NEWSHOBJ%g
-s%@YAPLIB@%$YAPLIB%g
-s%@YAP_EXTRAS@%$YAP_EXTRAS%g
-s%@M4@%$M4%g
-s%@M4GENHDRS@%$M4GENHDRS%g
-s%@M4GENABSMI@%$M4GENABSMI%g
-
-CEOF
-EOF
-
-cat >> $CONFIG_STATUS <<\EOF
-
-# Split the substitutions into bite-sized pieces for seds with
-# small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
-ac_file=1 # Number of current file.
-ac_beg=1 # First line for current file.
-ac_end=$ac_max_sed_cmds # Line after last line for current file.
-ac_more_lines=:
-ac_sed_cmds=""
-while $ac_more_lines; do
-  if test $ac_beg -gt 1; then
-    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
-  else
-    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
-  fi
-  if test ! -s conftest.s$ac_file; then
-    ac_more_lines=false
-    rm -f conftest.s$ac_file
-  else
-    if test -z "$ac_sed_cmds"; then
-      ac_sed_cmds="sed -f conftest.s$ac_file"
-    else
-      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
-    fi
-    ac_file=`expr $ac_file + 1`
-    ac_beg=$ac_end
-    ac_end=`expr $ac_end + $ac_max_sed_cmds`
-  fi
-done
-if test -z "$ac_sed_cmds"; then
-  ac_sed_cmds=cat
+cat >>$CONFIG_STATUS <<\_ACEOF
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+  set -o posix
 fi
+
+# Name of the executable.
+as_me=`echo "$0" |sed 's,.*[\\/],,'`
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+  # We could just check for DJGPP; but this test a) works b) is more generic
+  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+  if test -f conf$$.exe; then
+    # Don't use ln at all; we don't have any links
+    as_ln_s='cp -p'
+  else
+    as_ln_s='ln -s'
+  fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+  as_ln_s=ln
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ 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
+
+# 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.
+as_nl='
+'
+IFS=" 	$as_nl"
+
+# CDPATH.
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=:; export CDPATH; }
+
+exec 6>&1
+
+_ACEOF
+
+# Files that config.status was made for.
+if test -n "$ac_config_files"; then
+  echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_headers"; then
+  echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_links"; then
+  echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_commands"; then
+  echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
+fi
+
+cat >>$CONFIG_STATUS <<\EOF
+
+ac_cs_usage="\
+\`$as_me' instantiates files from templates according to the
+current configuration.
+
+Usage: $0 [OPTIONS] [FILE]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number, then exit
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+  --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+  --header=FILE[:TEMPLATE]
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Report bugs to <bug-autoconf@gnu.org>."
 EOF
 
-cat >> $CONFIG_STATUS <<EOF
+cat >>$CONFIG_STATUS <<EOF
+ac_cs_version="\\
+config.status
+configured by $0, generated by GNU Autoconf 2.50,
+  with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
-CONFIG_FILES=\${CONFIG_FILES-"Makefile library/regex/Makefile library/system/Makefile  .depend library/Makefile CHR/Makefile CLPQR/Makefile"}
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+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
-cat >> $CONFIG_STATUS <<\EOF
-for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
-  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
-  case "$ac_file" in
-  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
-       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
-  *) ac_file_in="${ac_file}.in" ;;
+
+cat >>$CONFIG_STATUS <<\EOF
+# 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=:
+while test $# != 0
+do
+  case $1 in
+  --*=*)
+    ac_option=`expr "x$1" : 'x\([^=]*\)='`
+    ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
+    shift
+    set dummy "$ac_option" "$ac_optarg" ${1+"$@"}
+    shift
+    ;;
+  -*);;
+  *) # This is not an option, so the user has probably given explicit
+     # arguments.
+     ac_need_defaults=false;;
   esac
 
-  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
+  case $1 in
+  # Handling of the options.
+EOF
+cat >>$CONFIG_STATUS <<EOF
+  -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
+  --version | --vers* | -V )
+    echo "$ac_cs_version"; exit 0 ;;
+  --he | --h)
+    # Conflict between --help and --header
+    { { echo "$as_me:7167: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&2;}
+   { (exit 1); exit 1; }; };;
+  --help | --hel | -h )
+    echo "$ac_cs_usage"; exit 0 ;;
+  --debug | --d* | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    shift
+    CONFIG_FILES="$CONFIG_FILES $1"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    shift
+    CONFIG_HEADERS="$CONFIG_HEADERS $1"
+    ac_need_defaults=false;;
 
-  # Remove last slash and all that follows it.  Not all systems have dirname.
-  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
+  # Handling of arguments.
+  'Makefile' ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+  'library/regex/Makefile' ) CONFIG_FILES="$CONFIG_FILES library/regex/Makefile" ;;
+  'library/system/Makefile' ) CONFIG_FILES="$CONFIG_FILES library/system/Makefile" ;;
+  '.depend' ) CONFIG_FILES="$CONFIG_FILES .depend" ;;
+  'library/Makefile' ) CONFIG_FILES="$CONFIG_FILES library/Makefile" ;;
+  'CHR/Makefile' ) CONFIG_FILES="$CONFIG_FILES CHR/Makefile" ;;
+  'CLPQR/Makefile' ) CONFIG_FILES="$CONFIG_FILES CLPQR/Makefile" ;;
+  'config.h' ) CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+
+  # This is an error.
+  -*) { { echo "$as_me:7196: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&2;}
+   { (exit 1); exit 1; }; } ;;
+  *) { { echo "$as_me:7201: error: invalid argument: $1" >&5
+echo "$as_me: error: invalid argument: $1" >&2;}
+   { (exit 1); exit 1; }; };;
+  esac
+  shift
+done
+
+exec 5>>config.log
+cat >&5 << _ACEOF
+
+## ----------------------- ##
+## Running config.status.  ##
+## ----------------------- ##
+
+This file was extended by $as_me 2.50, executed with
+  > $ac_cs_invocation
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+
+_ACEOF
+EOF
+
+cat >>$CONFIG_STATUS <<\EOF
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+fi
+
+# Create a temporary directory, and hook for its removal unless debugging.
+$debug ||
+{
+  trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
+  trap '{ (exit $?); exit $?; }' 1 2 13 15
+}
+
+# Create a (secure) tmp directory for tmp files.
+: ${TMPDIR=/tmp}
+{
+  tmp=`(umask 077 && mktemp -d -q "$TMPDIR/csXXXXXX") 2>/dev/null` &&
+  test -n "$tmp" && test -d "$tmp"
+}  ||
+{
+  tmp=$TMPDIR/cs$$-$RANDOM
+  (umask 077 && mkdir $tmp)
+} ||
+{
+   echo "$me: cannot create a temporary directory in $TMPDIR" >&2
+   { (exit 1); exit 1; }
+}
+
+EOF
+
+cat >>$CONFIG_STATUS <<EOF
+
+#
+# CONFIG_FILES section.
+#
+
+# No need to generate the scripts if there are no CONFIG_FILES.
+# This happens for instance when ./config.status config.h
+if test -n "\$CONFIG_FILES"; then
+  # Protect against being on the right side of a sed subst in config.status.
+  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@,$SHELL,;t t
+s,@exec_prefix@,$exec_prefix,;t t
+s,@prefix@,$prefix,;t t
+s,@program_transform_name@,$program_transform_name,;t t
+s,@bindir@,$bindir,;t t
+s,@sbindir@,$sbindir,;t t
+s,@libexecdir@,$libexecdir,;t t
+s,@datadir@,$datadir,;t t
+s,@sysconfdir@,$sysconfdir,;t t
+s,@sharedstatedir@,$sharedstatedir,;t t
+s,@localstatedir@,$localstatedir,;t t
+s,@libdir@,$libdir,;t t
+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@,$PACKAGE_BUGREPORT,;t t
+s,@ECHO_C@,$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@,$CFLAGS,;t t
+s,@LDFLAGS@,$LDFLAGS,;t t
+s,@CPPFLAGS@,$CPPFLAGS,;t t
+s,@ac_ct_CC@,$ac_ct_CC,;t t
+s,@EXEEXT@,$EXEEXT,;t t
+s,@OBJEXT@,$OBJEXT,;t t
+s,@GCC@,$GCC,;t t
+s,@C_INTERF_FLAGS@,$C_INTERF_FLAGS,;t t
+s,@build@,$build,;t t
+s,@build_cpu@,$build_cpu,;t t
+s,@build_vendor@,$build_vendor,;t t
+s,@build_os@,$build_os,;t t
+s,@host@,$host,;t t
+s,@host_cpu@,$host_cpu,;t t
+s,@host_vendor@,$host_vendor,;t t
+s,@host_os@,$host_os,;t t
+s,@CPP@,$CPP,;t t
+s,@LN_S@,$LN_S,;t t
+s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,;t t
+s,@INSTALL_SCRIPT@,$INSTALL_SCRIPT,;t t
+s,@INSTALL_DATA@,$INSTALL_DATA,;t t
+s,@RANLIB@,$RANLIB,;t t
+s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t
+s,@INDENT@,$INDENT,;t t
+s,@INSTALL_INFO@,$INSTALL_INFO,;t t
+s,@target@,$target,;t t
+s,@target_cpu@,$target_cpu,;t t
+s,@target_vendor@,$target_vendor,;t t
+s,@target_os@,$target_os,;t t
+s,@INSTALL_COMMAND@,$INSTALL_COMMAND,;t t
+s,@INSTALL_DLLS@,$INSTALL_DLLS,;t t
+s,@SHLIB_CFLAGS@,$SHLIB_CFLAGS,;t t
+s,@SHLIB_SUFFIX@,$SHLIB_SUFFIX,;t t
+s,@SHLIB_LD@,$SHLIB_LD,;t t
+s,@NEWSHOBJ@,$NEWSHOBJ,;t t
+s,@YAPLIB@,$YAPLIB,;t t
+s,@YAP_EXTRAS@,$YAP_EXTRAS,;t t
+s,@M4@,$M4,;t t
+s,@M4GENHDRS@,$M4GENHDRS,;t t
+s,@M4GENABSMI@,$M4GENABSMI,;t t
+CEOF
+
+EOF
+
+  cat >>$CONFIG_STATUS <<\EOF
+  # Split the substitutions into bite-sized pieces for seds with
+  # small command number limits, like on Digital OSF/1 and HP-UX.
+  ac_max_sed_lines=48
+  ac_sed_frag=1 # Number of current file.
+  ac_beg=1 # First line for current file.
+  ac_end=$ac_max_sed_lines # Line after last line for current file.
+  ac_more_lines=:
+  ac_sed_cmds=
+  while $ac_more_lines; do
+    if test $ac_beg -gt 1; then
+      sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+    else
+      sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+    fi
+    if test ! -s $tmp/subs.frag; then
+      ac_more_lines=false
+    else
+      # The purpose of the label and of the branching condition is to
+      # speed up the sed processing (if there are no `@' at all, there
+      # is no need to browse any of the substitutions).
+      # These are the two extra sed commands mentioned above.
+      (echo ':t
+  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
+      if test -z "$ac_sed_cmds"; then
+  	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
+      else
+  	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
+      fi
+      ac_sed_frag=`expr $ac_sed_frag + 1`
+      ac_beg=$ac_end
+      ac_end=`expr $ac_end + $ac_max_sed_lines`
+    fi
+  done
+  if test -z "$ac_sed_cmds"; then
+    ac_sed_cmds=cat
+  fi
+fi # test -n "$CONFIG_FILES"
+
+EOF
+cat >>$CONFIG_STATUS <<\EOF
+for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+  case $ac_file in
+  - | *:- | *:-:* ) # input from stdin
+        cat >$tmp/stdin
+        ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  * )   ac_file_in=$ac_file.in ;;
+  esac
+
+  # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
+  ac_dir=`$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$ac_file" : 'X\(//\)[^/]' \| \
+         X"$ac_file" : 'X\(//\)$' \| \
+         X"$ac_file" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+  	  /^X\(\/\/\)$/{ s//\1/; q; }
+  	  /^X\(\/\).*/{ s//\1/; q; }
+  	  s/.*/./; q'`
   if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
-    # The file is in a subdirectory.
-    test ! -d "$ac_dir" && mkdir "$ac_dir"
-    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
+    { case "$ac_dir" in
+  [\\/]* | ?:[\\/]* ) as_incr_dir=;;
+  *)                      as_incr_dir=.;;
+esac
+as_dummy="$ac_dir"
+for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
+  case $as_mkdir_dir in
+    # Skip DOS drivespec
+    ?:) as_incr_dir=$as_mkdir_dir ;;
+    *)
+      as_incr_dir=$as_incr_dir/$as_mkdir_dir
+      test -d "$as_incr_dir" || mkdir "$as_incr_dir"
+    ;;
+  esac
+done; }
+
+    ac_dir_suffix="/`echo $ac_dir|sed 's,^\./,,'`"
     # A "../" for each directory in $ac_dir_suffix.
-    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
+    ac_dots=`echo "$ac_dir_suffix" | sed 's,/[^/]*,../,g'`
   else
     ac_dir_suffix= ac_dots=
   fi
 
-  case "$ac_given_srcdir" in
-  .)  srcdir=.
-      if test -z "$ac_dots"; then top_srcdir=.
-      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
-  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
+  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=$srcdir ;;
   *) # Relative path.
-    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
-    top_srcdir="$ac_dots$ac_given_srcdir" ;;
+    ac_srcdir=$ac_dots$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_dots$srcdir ;;
   esac
 
-  case "$ac_given_INSTALL" in
-  [/$]*) INSTALL="$ac_given_INSTALL" ;;
-  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_dots$INSTALL ;;
   esac
 
-  echo creating "$ac_file"
-  rm -f "$ac_file"
-  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
-  case "$ac_file" in
-  *Makefile*) ac_comsub="1i\\
-# $configure_input" ;;
-  *) ac_comsub= ;;
-  esac
+  if test x"$ac_file" != x-; then
+    { echo "$as_me:7450: 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."
 
-  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
-  sed -e "$ac_comsub
-s%@configure_input@%$configure_input%g
-s%@srcdir@%$srcdir%g
-s%@top_srcdir@%$top_srcdir%g
-s%@INSTALL@%$INSTALL%g
-" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
-fi; done
-rm -f conftest.s*
+  # First look for the input files in the build tree, otherwise in the
+  # src tree.
+  ac_file_inputs=`IFS=:
+    for f in $ac_file_in; do
+      case $f in
+      -) echo $tmp/stdin ;;
+      [\\/$]*)
+         # Absolute (can't be DOS-style, as IFS=:)
+         test -f "$f" || { { echo "$as_me:7468: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+   { (exit 1); exit 1; }; }
+         echo $f;;
+      *) # Relative
+         if test -f "$f"; then
+           # Build tree
+           echo $f
+         elif test -f "$srcdir/$f"; then
+           # Source tree
+           echo $srcdir/$f
+         else
+           # /dev/null tree
+           { { echo "$as_me:7481: 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
+  sed "$ac_vpsub
+$extrasub
+EOF
+cat >>$CONFIG_STATUS <<\EOF
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s,@configure_input@,$configure_input,;t t
+s,@srcdir@,$ac_srcdir,;t t
+s,@top_srcdir@,$ac_top_srcdir,;t t
+s,@INSTALL@,$ac_INSTALL,;t t
+" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
+  rm -f $tmp/stdin
+  if test x"$ac_file" != x-; then
+    mv $tmp/out $ac_file
+  else
+    cat $tmp/out
+    rm -f $tmp/out
+  fi
+
+done
+EOF
+cat >>$CONFIG_STATUS <<\EOF
+
+#
+# CONFIG_HEADER section.
+#
 
 # These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
 # NAME is the cpp macro being defined and VALUE is the value it is being given.
 #
 # ac_d sets the value in "#define NAME VALUE" lines.
-ac_dA='s%^\([ 	]*\)#\([ 	]*define[ 	][ 	]*\)'
-ac_dB='\([ 	][ 	]*\)[^ 	]*%\1#\2'
-ac_dC='\3'
-ac_dD='%g'
-# ac_u turns "#undef NAME" with trailing blanks into "#define NAME VALUE".
-ac_uA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
-ac_uB='\([ 	]\)%\1#\2define\3'
+ac_dA='s,^\([ 	]*\)#\([ 	]*define[ 	][ 	]*\)'
+ac_dB='[ 	].*$,\1#\2'
+ac_dC=' '
+ac_dD=',;t'
+# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
+ac_uA='s,^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
+ac_uB='$,\1#\2define\3'
 ac_uC=' '
-ac_uD='\4%g'
-# ac_e turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
-ac_eA='s%^\([ 	]*\)#\([ 	]*\)undef\([ 	][ 	]*\)'
-ac_eB='$%\1#\2define\3'
-ac_eC=' '
-ac_eD='%g'
+ac_uD=',;t'
 
-if test "${CONFIG_HEADERS+set}" != set; then
-EOF
-cat >> $CONFIG_STATUS <<EOF
-  CONFIG_HEADERS="config.h"
-EOF
-cat >> $CONFIG_STATUS <<\EOF
-fi
-for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
+for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
   # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
-  case "$ac_file" in
-  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
-       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
-  *) ac_file_in="${ac_file}.in" ;;
+  case $ac_file in
+  - | *:- | *:-:* ) # input from stdin
+        cat >$tmp/stdin
+        ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+  * )   ac_file_in=$ac_file.in ;;
   esac
 
-  echo creating $ac_file
+  test x"$ac_file" != x- && { echo "$as_me:7542: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
 
-  rm -f conftest.frag conftest.in conftest.out
-  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
-  cat $ac_file_inputs > conftest.in
+  # First look for the input files in the build tree, otherwise in the
+  # src tree.
+  ac_file_inputs=`IFS=:
+    for f in $ac_file_in; do
+      case $f in
+      -) echo $tmp/stdin ;;
+      [\\/$]*)
+         # Absolute (can't be DOS-style, as IFS=:)
+         test -f "$f" || { { echo "$as_me:7553: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+   { (exit 1); exit 1; }; }
+         echo $f;;
+      *) # Relative
+         if test -f "$f"; then
+           # Build tree
+           echo $f
+         elif test -f "$srcdir/$f"; then
+           # Source tree
+           echo $srcdir/$f
+         else
+           # /dev/null tree
+           { { echo "$as_me:7566: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+   { (exit 1); exit 1; }; }
+         fi;;
+      esac
+    done` || { (exit 1); exit 1; }
+  # Remove the trailing spaces.
+  sed 's/[ 	]*$//' $ac_file_inputs >$tmp/in
 
 EOF
 
-# Transform confdefs.h into a sed script conftest.vals that substitutes
-# the proper values into config.h.in to produce config.h.  And first:
-# Protect against being on the right side of a sed subst in config.status.
-# Protect against being in an unquoted here document in config.status.
-rm -f conftest.vals
-cat > conftest.hdr <<\EOF
-s/[\\&%]/\\&/g
-s%[\\$`]%\\&%g
-s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD}%gp
-s%ac_d%ac_u%gp
-s%ac_u%ac_e%gp
+# Transform confdefs.h into two sed scripts, `conftest.defines' and
+# `conftest.undefs', that substitutes the proper values into
+# config.h.in to produce config.h.  The first handles `#define'
+# templates, and the second `#undef' templates.
+# And first: Protect against being on the right side of a sed subst in
+# config.status.  Protect against being in an unquoted here document
+# in config.status.
+rm -f conftest.defines conftest.undefs
+# Using a here document instead of a string reduces the quoting nightmare.
+# Putting comments in sed scripts is not portable.
+#
+# `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
+s/[\\&,]/\\&/g
+s,[\\$`],\\&,g
+t clear
+: clear
+s,^[ 	]*#[ 	]*define[ 	][ 	]*\(\([^ 	(][^ 	(]*\)([^)]*)\)[ 	]*\(.*\)$,${ac_dA}\2${ac_dB}\1${ac_dC}\3${ac_dD},gp
+t end
+s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	][^ 	]*\)[ 	]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
+: end
 EOF
-sed -n -f conftest.hdr confdefs.h > conftest.vals
-rm -f conftest.hdr
+# 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.
+uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines
+sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs
+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.vals <<\EOF
-s%^[ 	]*#[ 	]*undef[ 	][ 	]*[a-zA-Z_][a-zA-Z_0-9]*%/* & */%
+cat >>conftest.undefs <<\EOF
+s,^[ 	]*#[ 	]*undef[ 	][ 	]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
 EOF
 
-# Break up conftest.vals because some shells have a limit on
-# the size of here documents, and old seds have small limits too.
-
+# 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).
+echo '  # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
+echo '  if egrep "^[ 	]*#[ 	]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
+echo '  # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
+echo '  :' >>$CONFIG_STATUS
 rm -f conftest.tail
-while :
+while grep . conftest.defines >/dev/null
 do
-  ac_lines=`grep -c . conftest.vals`
-  # grep -c gives empty output for an empty file on some AIX systems.
-  if test -z "$ac_lines" || test "$ac_lines" -eq 0; then break; fi
-  # Write a limited-size here document to conftest.frag.
-  echo '  cat > conftest.frag <<CEOF' >> $CONFIG_STATUS
-  sed ${ac_max_here_lines}q conftest.vals >> $CONFIG_STATUS
+  # Write a limited-size here document to $tmp/defines.sed.
+  echo '  cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS
+  # Speed up: don't consider the non `#define' lines.
+  echo '/^[ 	]*#[ 	]*define/!b' >>$CONFIG_STATUS
+  # Work around the forget-to-reset-the-flag bug.
+  echo 't clr' >>$CONFIG_STATUS
+  echo ': clr' >>$CONFIG_STATUS
+  sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS
   echo 'CEOF
-  sed -f conftest.frag conftest.in > conftest.out
-  rm -f conftest.in
-  mv conftest.out conftest.in
-' >> $CONFIG_STATUS
-  sed 1,${ac_max_here_lines}d conftest.vals > conftest.tail
-  rm -f conftest.vals
-  mv conftest.tail conftest.vals
+  sed -f $tmp/defines.sed $tmp/in >$tmp/out
+  rm -f $tmp/in
+  mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+  sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail
+  rm -f conftest.defines
+  mv conftest.tail conftest.defines
 done
-rm -f conftest.vals
+rm -f conftest.defines
+echo '  fi # egrep' >>$CONFIG_STATUS
+echo >>$CONFIG_STATUS
 
-cat >> $CONFIG_STATUS <<\EOF
-  rm -f conftest.frag conftest.h
-  echo "/* $ac_file.  Generated automatically by configure.  */" > conftest.h
-  cat conftest.in >> conftest.h
-  rm -f conftest.in
-  if cmp -s $ac_file conftest.h 2>/dev/null; then
-    echo "$ac_file is unchanged"
-    rm -f conftest.h
+# Break up conftest.undefs because some shells have a limit on the size
+# of here documents, and old seds have small limits too (100 cmds).
+echo '  # Handle all the #undef templates' >>$CONFIG_STATUS
+rm -f conftest.tail
+while grep . conftest.undefs >/dev/null
+do
+  # Write a limited-size here document to $tmp/undefs.sed.
+  echo '  cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS
+  # Speed up: don't consider the non `#undef'
+  echo '/^[ 	]*#[ 	]*undef/!b' >>$CONFIG_STATUS
+  # Work around the forget-to-reset-the-flag bug.
+  echo 't clr' >>$CONFIG_STATUS
+  echo ': clr' >>$CONFIG_STATUS
+  sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS
+  echo 'CEOF
+  sed -f $tmp/undefs.sed $tmp/in >$tmp/out
+  rm -f $tmp/in
+  mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+  sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail
+  rm -f conftest.undefs
+  mv conftest.tail conftest.undefs
+done
+rm -f conftest.undefs
+
+cat >>$CONFIG_STATUS <<\EOF
+  # Let's still pretend it is `configure' which instantiates (i.e., don't
+  # use $as_me), people would be surprised to read:
+  #    /* config.h.  Generated automatically by config.status.  */
+  if test x"$ac_file" = x-; then
+    echo "/* Generated automatically by configure.  */" >$tmp/config.h
   else
-    # Remove last slash and all that follows it.  Not all systems have dirname.
-      ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
-      if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
-      # The file is in a subdirectory.
-      test ! -d "$ac_dir" && mkdir "$ac_dir"
-    fi
-    rm -f $ac_file
-    mv conftest.h $ac_file
+    echo "/* $ac_file.  Generated automatically by configure.  */" >$tmp/config.h
   fi
-fi; done
+  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:7683: $ac_file is unchanged" >&5
+echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      ac_dir=`$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$ac_file" : 'X\(//\)[^/]' \| \
+         X"$ac_file" : 'X\(//\)$' \| \
+         X"$ac_file" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+  	  /^X\(\/\/\)$/{ s//\1/; q; }
+  	  /^X\(\/\).*/{ s//\1/; q; }
+  	  s/.*/./; q'`
+      if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
+        { case "$ac_dir" in
+  [\\/]* | ?:[\\/]* ) as_incr_dir=;;
+  *)                      as_incr_dir=.;;
+esac
+as_dummy="$ac_dir"
+for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
+  case $as_mkdir_dir in
+    # Skip DOS drivespec
+    ?:) as_incr_dir=$as_mkdir_dir ;;
+    *)
+      as_incr_dir=$as_incr_dir/$as_mkdir_dir
+      test -d "$as_incr_dir" || mkdir "$as_incr_dir"
+    ;;
+  esac
+done; }
 
+      fi
+      rm -f $ac_file
+      mv $tmp/config.h $ac_file
+    fi
+  else
+    cat $tmp/config.h
+    rm -f $tmp/config.h
+  fi
+done
 EOF
-cat >> $CONFIG_STATUS <<EOF
 
-EOF
-cat >> $CONFIG_STATUS <<\EOF
+cat >>$CONFIG_STATUS <<\EOF
 
-exit 0
+{ (exit 0); exit 0; }
 EOF
 chmod +x $CONFIG_STATUS
-rm -fr confdefs* $ac_clean_files
-test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
+ac_clean_files=$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
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || { (exit 1); exit 1; }
+fi
 
 make depend
 
diff --git a/configure.in b/configure.in
index 8882b0b70..c69ce09dd 100644
--- a/configure.in
+++ b/configure.in
@@ -12,7 +12,7 @@ AC_SUBST(GCC)
 AC_SUBST(C_INTERF_FLAGS)
 
 AC_CYGWIN
-if test $ac_cv_cygwin = yes  -a "$CC" = "gcc"
+if test "$ac_cv_cygwin" = "yes"  -a "$CC" = "gcc"
 then
   CC="gcc -mno-cygwin"
 fi
diff --git a/pl/boot.yap b/pl/boot.yap
index 3c972d8ef..219fe06b8 100644
--- a/pl/boot.yap
+++ b/pl/boot.yap
@@ -1144,20 +1144,20 @@ catch(G,C,A) :-
 '$catch'(G,_,_,I,_) :-
         % on entry we push the catch choice point
         X is '$last_choice_pt',
-	'$catch_call'(X,G,I).
+	'$catch_call'(X,G,I, NX),
+	(X = NX -> !, '$erase_catch_elements'(I) ; true).
 % someone sent us a throw.
 '$catch'(_,C,A,_,M) :-
 	array_element('$catch_queue', 1, X), X \= '$',
 	update_array('$catch_queue', 1, '$'),
-	array_element('$catch_queue', 0, catch(_,Lev,Q)),
+	array_element('$catch_queue', 0, catch(_,Lev,Q)), !,
 	update_array('$catch_queue', 0, Q),
 	'$db_clean_queues'(Lev),
+        '$erase_catch_elements'(Lev),
         ( C=X -> '$current_module'(_,M), '$execute'(A) ; throw(X)).
 % normal exit: make sure we only erase what we should erase!
 '$catch'(_,_,_,I,_) :-
-	array_element('$catch_queue', 0, OldCatch),
-	'$erase_catch_elements'(OldCatch, I, Catch),
-	update_array('$catch_queue', 0, Catch),
+        '$erase_catch_elements'(I),
 	fail.
 
 '$erase_catch_elements'(catch(X, J, P), I, Catch) :-
@@ -1165,14 +1165,15 @@ catch(G,C,A) :-
 	  '$erase_catch_elements'(P, I, Catch).
 '$erase_catch_elements'(Catch, _, Catch).
 	  
-'$catch_call'(X,G,I) :-
+'$catch_call'(X,G,I,NX) :-
 	array_element('$catch_queue', 0, OldCatch),
 	update_array('$catch_queue', 0, catch(X,I,OldCatch)),
         '$execute'(G),
-        ( % on exit remove the catch
+	NX is '$last_choice_pt',
+        (
 	  array_element('$catch_queue', 0, catch(X,I,Catch)),
 	  update_array('$catch_queue', 0, Catch)
-        ;
+	;
           % on backtracking reinstate the catch before backtracking to G
 	  array_element('$catch_queue', 0, Catch),
 	  update_array('$catch_queue', 0, catch(X,I,Catch)),
@@ -1195,14 +1196,16 @@ catch(G,C,A) :-
 '$system_catch'(G,_,_,I,_) :-
         % on entry we push the catch choice point
         X is '$last_choice_pt',
-	'$system_catch_call'(X,G,I).
+	'$system_catch_call'(X,G,I,NX),
+	( X = NX -> !, '$erase_catch_elements'(I) ; true).
 % someone sent us a throw.
 '$system_catch'(_,C,A,_,M0) :-
 	array_element('$catch_queue', 1, X), X \= '$',
 	update_array('$catch_queue', 1, '$'),
-	array_element('$catch_queue', 0, catch(_,Lev,Q)),
-	'$db_clean_queues'(Lev),
+	array_element('$catch_queue', 0, catch(_,Lev,Q)), !,
 	update_array('$catch_queue', 0, Q),
+	'$db_clean_queues'(Lev),
+        '$erase_catch_elements'(Lev),
         ( C=X ->
 	    '$current_module'(_,M0),
 	    (A = M:G -> '$mod_switch'(M,G) ; '$mod_switch'(M0,A))
@@ -1211,15 +1214,19 @@ catch(G,C,A) :-
         ).
 % normal exit: make sure we only erase what we should erase!
 '$system_catch'(_,_,_,I,_) :-
-	array_element('$catch_queue', 0, OldCatch),
-	'$erase_catch_elements'(OldCatch, I, Catch),
-	update_array('$catch_queue', 0, Catch),
+        '$erase_catch_elements'(I),
 	fail.
 
-'$system_catch_call'(X,G,I) :-
+'$erase_catch_elements'(I) :-
+	array_element('$catch_queue', 0, OldCatch),
+	'$erase_catch_elements'(OldCatch, I, Catch),
+	update_array('$catch_queue', 0, Catch).
+
+'$system_catch_call'(X,G,I, NX) :-
 	array_element('$catch_queue', 0, OldCatch),
 	update_array('$catch_queue', 0, catch(X,I,OldCatch)),
         '$execute0'(G),
+	NX is '$last_choice_pt',
         ( % on exit remove the catch
 	  array_element('$catch_queue', 0, catch(X,I,Catch)),
 	  update_array('$catch_queue', 0, Catch)