diff --git a/C/absmi.c b/C/absmi.c
index 40c0f2fd1..3fba19721 100755
--- a/C/absmi.c
+++ b/C/absmi.c
@@ -851,7 +851,7 @@ interrupt_call( USES_REGS1 )
     return v;
   PP = P->u.Osbpp.p0;
   if (Yap_only_has_signal(YAP_CREEP_SIGNAL) &&
-      PP->ExtraPredFlags & (NoDebugPredFlag|HiddenPredFlag) )
+      (PP->ExtraPredFlags & (NoDebugPredFlag|HiddenPredFlag)) )
     return 2;
   S = (CELL *) P->u.Osbpp.p;
   SET_ASP(YENV, P->u.Osbpp.s);
@@ -4442,7 +4442,7 @@ Yap_absmi(int inp)
 	FAIL();
       }
       BEGP(pt1);
-      pt1 = RepAppl(PREG->u.xu.u);
+      pt1 = RepAppl(PREG->u.xu.ut);
       PREG = NEXTOP(PREG, xu);
       if (
 	  pt1[1] != pt0[1] ||
@@ -4460,7 +4460,7 @@ Yap_absmi(int inp)
       /* set d1 to be the new structure we are going to create */
       START_PREFETCH(xc);
       BEGD(d1);
-      d1 = PREG->u.xu.u;
+      d1 = PREG->u.xu.ut;
       PREG = NEXTOP(PREG, xu);
       Bind(pt0, d1);
       GONext();
@@ -6154,7 +6154,7 @@ Yap_absmi(int inp)
       }
       ENDD(d0);
       BEGP(pt1);
-      pt1 = RepAppl(PREG->u.ou.u);
+      pt1 = RepAppl(PREG->u.ou.ut);
       PREG = NEXTOP(PREG, ou);
       if (
 	  pt1[1] != pt0[1]
@@ -6166,7 +6166,7 @@ Yap_absmi(int inp)
 
       derefa_body(d0, pt0, ustring_unk, ustring_nonvar);
       BEGD(d1);
-      d1 = PREG->u.ou.u;
+      d1 = PREG->u.ou.ut;
       PREG = NEXTOP(PREG, ou);
       Bind_Global(pt0, d1);
       GONext();
@@ -6194,7 +6194,7 @@ Yap_absmi(int inp)
       }
       ENDD(d0);
       BEGP(pt1);
-      pt1 = RepAppl(PREG->u.ou.u);
+      pt1 = RepAppl(PREG->u.ou.ut);
       PREG = NEXTOP(PREG, ou);
       if (
 	  pt1[1] != pt0[1]
@@ -6206,7 +6206,7 @@ Yap_absmi(int inp)
 
       derefa_body(d0, S_SREG, ulstring_unk, ulstring_nonvar);
       BEGD(d1);
-      d1 = PREG->u.ou.u;
+      d1 = PREG->u.ou.ut;
       PREG = NEXTOP(PREG, ou);
       Bind_Global(S_SREG, d1);
       GONext();
@@ -9196,9 +9196,11 @@ Yap_absmi(int inp)
 		GONext();
 	      }
 	    }
+	    break;
 	  case (CELL)FunctorLongInt:
 	    PREG = NEXTOP(PREG, xl);
 	    GONext();
+	    break;
 	  default:
 	    PREG = PREG->u.xl.F;
 	    GONext();
diff --git a/C/amasm.c b/C/amasm.c
index c6833946f..308bbcb4e 100755
--- a/C/amasm.c
+++ b/C/amasm.c
@@ -1149,7 +1149,7 @@ a_ustring(CELL rnd1, op_numbers opcode, op_numbers opcode_w, int *clause_has_blo
   if (pass_no) {
     code_p->opc = emit_op(opcode);
     code_p->u.ou.opcw = emit_op(opcode_w);
-    code_p->u.ou.u = 
+    code_p->u.ou.ut = 
       AbsAppl((CELL *)(Unsigned(cip->code_addr) + cip->label_offset[rnd1]));      
   }
   *clause_has_blobsp = TRUE;
@@ -1403,7 +1403,7 @@ a_rstring(op_numbers opcode, int *clause_has_blobsp, yamop *code_p, int pass_no,
   if (pass_no) {
     code_p->opc = emit_op(opcode);
     code_p->u.xu.x = emit_x(cip->cpc->rnd2);
-    code_p->u.xu.u = AbsAppl((CELL *)(Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1]));
+    code_p->u.xu.ut = AbsAppl((CELL *)(Unsigned(cip->code_addr) + cip->label_offset[cip->cpc->rnd1]));
   }
   *clause_has_blobsp = TRUE;
   GONEXT(xu);
diff --git a/C/eval.c b/C/eval.c
index cd3257b98..cb1a46143 100644
--- a/C/eval.c
+++ b/C/eval.c
@@ -104,7 +104,13 @@ Eval(Term t USES_REGS)
     return Yap_eval_atom(p->FOfEE);
   } else if (IsApplTerm(t)) {
     Functor fun = FunctorOfTerm(t);
-    if ((Atom)fun == AtomFoundVar) {
+    if (fun == FunctorString) {
+      const char *s = StringOfTerm(t);
+      if (s[1] == '\0')
+	return MkIntegerTerm(s[0]);
+      return Yap_ArithError(TYPE_ERROR_EVALUABLE, t,
+			    "string in arithmetic expression");
+    } else if ((Atom)fun == AtomFoundVar) {
       return Yap_ArithError(TYPE_ERROR_EVALUABLE, TermNil,
 			    "cyclic term in arithmetic expression");
     } else {
diff --git a/C/index.c b/C/index.c
index de45c18f6..997187270 100755
--- a/C/index.c
+++ b/C/index.c
@@ -1205,7 +1205,7 @@ add_arg_info(ClauseDef *clause, PredEntry *ap, UInt argno)
     case _unify_l_string:
       if (argno == 1) {
 	clause->Tag = AbsAppl((CELL *)FunctorString);
-	clause->ucd.t_ptr = cl->u.ou.u;
+	clause->ucd.t_ptr = cl->u.ou.ut;
 	return;
       }
       cl = NEXTOP(cl,ou);
diff --git a/H/amidefs.h b/H/amidefs.h
index 7f8395385..eac8956ec 100644
--- a/H/amidefs.h
+++ b/H/amidefs.h
@@ -561,7 +561,7 @@ typedef struct yami {
     } os;
     struct {
       OPCODE              opcw;
-      Term    u;
+      Term    ut;
       CELL next;
     } ou;
     struct {
@@ -791,7 +791,7 @@ typedef struct yami {
     } xx;
     struct {
       wamreg                x;
-      Term                  u;
+      Term                  ut;
       CELL next;
     } xu;
     struct {
diff --git a/H/rclause.h b/H/rclause.h
index c77963639..4cf3a05fd 100644
--- a/H/rclause.h
+++ b/H/rclause.h
@@ -389,7 +389,7 @@ restore_opcodes(yamop *pc, yamop *max USES_REGS)
     case _unify_l_string:
     case _unify_string:
       pc->u.ou.opcw = OpcodeAdjust(pc->u.ou.opcw);
-      pc->u.ou.u = BlobTermInCodeAdjust(pc->u.ou.u);
+      pc->u.ou.ut = BlobTermInCodeAdjust(pc->u.ou.ut);
       pc = NEXTOP(pc,ou);
       break;
       /* instructions type ox */
@@ -643,7 +643,7 @@ restore_opcodes(yamop *pc, yamop *max USES_REGS)
       /* instructions type xu */
     case _get_string:
       pc->u.xu.x = XAdjust(pc->u.xu.x);
-      pc->u.xu.u = BlobTermInCodeAdjust(pc->u.xu.u);
+      pc->u.xu.ut = BlobTermInCodeAdjust(pc->u.xu.ut);
       pc = NEXTOP(pc,xu);
       break;
       /* instructions type xx */
diff --git a/H/saveclause.h b/H/saveclause.h
index 6e1d27fcb..619062b65 100644
--- a/H/saveclause.h
+++ b/H/saveclause.h
@@ -406,7 +406,7 @@
     case _unify_l_string:
     case _unify_string:
       CHECK(save_Opcode(stream, pc->u.ou.opcw));
-      CHECK(save_BlobTermInCode(stream, pc->u.ou.u));
+      CHECK(save_BlobTermInCode(stream, pc->u.ou.ut));
       pc = NEXTOP(pc,ou);
       break;
       /* instructions type ox */
@@ -659,7 +659,7 @@
       /* instructions type xu */
     case _get_string:
       CHECK(save_X(stream, pc->u.xu.x));
-      CHECK(save_BlobTermInCode(stream, pc->u.xu.u));
+      CHECK(save_BlobTermInCode(stream, pc->u.xu.ut));
       pc = NEXTOP(pc,xu);
       break;
       /* instructions type xx */
diff --git a/Makefile.in b/Makefile.in
index 35d754e81..6f4cb1f7d 100755
--- a/Makefile.in
+++ b/Makefile.in
@@ -596,7 +596,7 @@ install_unix: startup.yss @YAPLIB@
 	  $(LN_S) -f $(DESTDIR)$(LIBDIR)/@YAPLIB@ $(DESTDIR)$(LIBDIR)/$$p; \
 	done
 	$(INSTALL) $(srcdir)/Artistic $(DESTDIR)$(DOCSDIR)
-	$(INSTALL) $(srcdir)/README $(DESTDIR)$(DOCSDIR)
+	$(INSTALL) $(srcdir)/README.TXT $(DESTDIR)$(DOCSDIR)
 	$(INSTALL) $(srcdir)/COPYING $(DESTDIR)$(DOCSDIR)
 	for f in $(PL_SOURCES); do $(INSTALL) $(srcdir)/$$f $(DESTDIR)$(SHAREDIR)/Yap/pl; done
 	for h in $(INTERFACE_HEADERS); do $(INSTALL) $(srcdir)/$$h $(DESTDIR)$(INCLUDEDIR); done
@@ -697,7 +697,7 @@ install_docs:
 	$(MAKE) html
 	$(INSTALL_DATA) yap.html* $(DESTDIR)$(DOCSDIR)
 	$(INSTALL_DATA) yap.pdf $(DESTDIR)$(DOCSDIR)
-	$(INSTALL_DATA) README $(DESTDIR)$(DOCSDIR)
+	$(INSTALL_DATA) README.TXT $(DESTDIR)$(DOCSDIR)
 	$(INSTALL_DATA) Artistic $(DESTDIR)$(DOCSDIR)
 	$(INSTALL_DATA) COPYING $(DESTDIR)$(DOCSDIR)
 	$(INSTALL_DATA) changes4.3.html $(DESTDIR)$(DOCSDIR)
diff --git a/README b/README.TXT
similarity index 65%
rename from README
rename to README.TXT
index bdfa1136a..d4de07905 100644
--- a/README
+++ b/README.TXT
@@ -3,29 +3,30 @@
 			README for YAP6
 
 
-This directory contains a release of the YAP 6.0.* Prolog system,
+This directory contains a release of the YAP 6.3.* Prolog system,
 originally developed at the Universidade do Porto by Luis Damas and
-Vitor Santos Costa, with contributions from the Edinburgh Prolog
+Vitor Santos Costa. YAP contains the SWI-Prolog I/O library anad a
+number of SWI-Prolog packages, originally developed by Jan Wielemaker
+and other. It includes contributions from the Edinburgh Prolog
 library, the C-Prolog manual authors, Ricardo Lopes, Ricardo Rocha,
 M. Hermenegildo, D. Cabeza, Eric Alphonse, Paulo Moura, Nuno Fonseca,
-Jan Wielemaker, Paul Singleton, Fred Dushin, Jan Wielemaker, Markus
-Triska, and many others. You should read the rest of this file for
-information on what YAP is and for instructions on how to build it.
+Jan Wielemaker, Paul Singleton, Fred Dushin, Markus Triska, and many
+others. You should read the rest of this file for information on what
+YAP is and for instructions on how to build it.
 
 YAP 6 has been built with several versions on GCC on a variety of
-Linux, MacOSX. It has been built on Windows XP and VISTA using the
-mingw toolkit and cygwin from Cygnus Solutions.
+Linux, BDS, and MacOSX configurations. It has been built on Windows7
+using the mingw toolkit and cygwin from Cygnus Solutions.
 
 The main core of the YAP distribution is distributed under a dual
 license: the Perl Artistic license 2 and the FSF's LGPL. The YAP
 distribution also contains files distributed under the LGPL
 exclusively, and under the GPL.
 
-The YAP distribution includes several packages ported to YAP, such as
-Pillow, JPL, CLP(R) and CHR. We would like to take the opportunity to
-thank the developers of these packages for their generosity in
-allowing YAP to distribute these packages. Any bugs in these packages
-are probably our fault.
+The YAP distribution includes several packages ported to YAP. We would
+like to take the opportunity to thank the developers of these packages
+for their generosity in allowing YAP to distribute these packages. Any
+bugs in these packages are probably our fault.
 
 If you have a question about this software, desire to add code, found
 a bug, want to request a feature, or wonder how to get further
@@ -71,11 +72,11 @@ with SICStus Prolog.
 YAP is now being maintained using the git source management system. A
 public repository is available at 
 
-http://gitorious.org/projects/yap-git
+http://sourceforge.net/p/yap/yap-6.3/ci/master/tree/
 
 Please use
 
-git clone git://gitorious.org/yap-git/mainline.git
+git clone git://git.code.sf.net/p/yap/yap-6.3
 
 to obtain a copy of the current YAP tree.
 
@@ -116,8 +117,7 @@ the --exec-prefix option to set the EROOTDIR macro (for
 architecture-dependent files). EROOTDIR defaults to ROOTDIR.
 
   o The main executable is placed at BINDIR, which defaults at
-$(EROOTDIR)/bin. This executable is actually a script that calls the
-Prolog engine, stored at YAPLIBDIR.
+$(EROOTDIR)/bin.
 
   o SHAREDIR is the directory where the Prolog libraries are stored.
 Its default value is $(ROOTDIR)/share. The Prolog libraries are
@@ -144,13 +144,14 @@ following options to configure:
 
 Compilation options:
 
+ o --enable-tablingt=yes allows tabled evaluation (default option)
+
  o --enable-depth-limit=yes allows depth limited evaluation, say for
 implementing iterative deepening. It is required by the ILP system
-Aleph.
+Aleph. (default option)
 
  o --enable-use-malloc=yes makes YAP use the system's C-library
- allocation routines for all memory allocation. It is not compatible
- with save and restore.
+ allocation routines for all memory allocation (default).
 
  o --enable-threads=yes enables POSIX thread support.
 
@@ -167,59 +168,52 @@ useful for normal users.
  o --enable-or-parallelism={env-copy,sba,a-cow} allows or-parallelism
 supported by one of these three forms. This is still experimental.
 
- o --enable-tabling=yes allows tabling support.
-
  o --enable-dynamic-loading compile YAP as as a shared library.
 
- o --enable-win64 compile YAP as a WIN64 application (still experimental).
-
  o --enable-cygwin compile YAP as a CYGWIN environment application, and not as stand-alone application.
 
- o --with-cudd=CUDD_PATH enable support of the CUDD library, used by
- packages such as ProbLog. Usually CUDD has to compiled from source
- (http://vlsi.colorado.edu/~fabio/CUDD/), but Fedora and MacPorts have
- cudd packages. In the case of Fedora, install cudd-dev and use
- --with-cud=/usr, in the case of MacPorts install cudd-dev and use
- --with-cud=/opt/local.
-
- o --with-gmp=GMP_PATH provide a path for GMP, in case GMP is not
+ o --with-gmp[=GMP_PATH] provide a path for GMP, in case GMP is not
  installed in the system. In a Linux machine, make sure you have
  installed the gmp-dev package. Binary versions of GMP are available
  for WIN32.
 
-Functionality options:
+ o --enable-condor compile YAP as a static program that can be run by
+ condor. condor_compile must be in the system path.
 
- o --with-java=JAVA_PATH activates the Java Interface Library JPL. In
- Linux and WIN32 you have to provide a path to the Java library, in
- OSX it is sufficient to say yes.
+Packages and Interface Libraries
 
- o --enable-condor compile YAP as a static program that can be run by condor
+ o --with-cudd[=CUDD_PATH] enables compilation of the CUDD library,
+ used by packages such as PFL/CLP(BN) and ProbLog. The source of the
+ CUDD package is availablr from:
 
- o --enable-chr install CHR (enabled by default, if CHR is available)
+  http://vlsi.colorado.edu/~fabio/CUDD
 
- o --enable-clpqr install CLPQR (enabled by default, if CLPQR is available)
+ Fedora Linux and MacPorts have cudd packages. In the case of Fedora,
+ install cudd-devel. Ask vsc@dcc.fc.up.pt for a WIN32/WIN64 port 
 
- o --enable-myddas install the MYDDAS MYSQL and/or ODBC interface
- package. YAP tries to compile this by default, if the odbc or MySql
- development files can be found.
+ o --with-java[=JAVA_PATH] enables the Java Interface Library JPL.
 
- o --with-matlab install the MATLAB interface (not default). You need
- to provide the full path of the MATLAB install.
+ o --enable-chr installs the Leuven CHR language implementation
+ (enabled by default, if package/chr exists)
 
- o --with-mpi install the MPICH based MPI interface. This is default,
+ o --enable-clpqr installs the Leuven CLPQR port, originally developed
+ for SWI-Prolog (enabled by default, if Cpackage/clpqe exists)
+
+ o --enable-myddas[=PATH] installs the MYDDAS MYSQL and/or ODBC interface
+ package (enabled by default, if ODBC and/or MySql
+ development files can be found). It also enables support for the
+ SWI-Prolog ODBC package.
+
+ o --with-matlab[=PATH] installs the MATLAB interface (not
+ default). You need to provide the full path of the MATLAB libraries.
+
+ o --with-mpi[=PATH] installs the  MPI interface. This is default,
  if the development libraries can be found.
 
- o --with-mpe install the MPE interface.
-
- o --with-lam install the MPI LAM-based interface.
-
-
-3.3 Porting YAP
-
-The system has been mainly tested with GCC, but we have been able to
-compile older versions of YAP under lcc in Linux, Sun's cc compiler,
-IBM's xlc, SGI's cc, HP's cc, and Microsoft's Visual C++ 6.0. Recent
-versions of YAP have also been compiled using Intel's lcc.
+ o --with-gecode[=PATH] installs the  GeCode Solver interface. This is default,
+ if gecode libraries can be found.
 
+ o --with-R[=PATH] installs the Real interface to the R language.
 
+ o --with-python[=PATH] installs a Python interface
 
diff --git a/library/dialect/bprolog/fli/bprolog.h b/library/dialect/bprolog/fli/bprolog.h
index 25df9df61..d61e7e63a 100644
--- a/library/dialect/bprolog/fli/bprolog.h
+++ b/library/dialect/bprolog/fli/bprolog.h
@@ -12,8 +12,8 @@ typedef YAP_Int BPLONG;
 typedef YAP_UInt BPULONG;
 typedef BPLONG *BPLONG_PTR;
 
-#define BP_TRUE TRUE
-#define BP_FALSE FALSE
+#define BP_TRUE 1
+#define BP_FALSE 0
 
 //extern TERM bp_get_call_arg(int i, int arity);
 #define bp_get_call_arg( i,  arity) YAP_A(i)
@@ -169,7 +169,7 @@ INLINE_ONLY extern inline int
 bp_mount_query_term(TERM goal)
 {
   curr_toam_status = goal;
-  return TRUE;
+  return BP_TRUE;
 }
 
 #endif /* BPROLOG_H */
diff --git a/library/dialect/swi/fli/swi.c b/library/dialect/swi/fli/swi.c
index 7a58640d2..3d9a37051 100755
--- a/library/dialect/swi/fli/swi.c
+++ b/library/dialect/swi/fli/swi.c
@@ -95,7 +95,7 @@ extern X_API Int YAP_PLArityOfSWIFunctor(functor_t at);
 /* This is silly, but let's keep it like that for now */
 X_API Int
 YAP_PLArityOfSWIFunctor(functor_t f) {
-  if ((CELL)(f) & 2 && ((CELL)f) < N_SWI_FUNCTORS*4+2)
+  if (((CELL)(f) & 2) && ((CELL)f) < N_SWI_FUNCTORS*4+2)
     return ArityOfFunctor(SWI_Functors[(CELL)f/4]);
   if (IsAtomTerm(f))
     return 0;
@@ -1001,7 +1001,7 @@ X_API int PL_throw(term_t exception)
 {
   CACHE_REGS
   YAP_Throw(Yap_GetFromSlot(exception PASS_REGS));
-  longjmp(LOCAL_execution->env, 0);
+  longjmp(LOCAL_execution->q_env, 0);
   return 0;
 }
 
@@ -1315,6 +1315,7 @@ X_API int PL_unify_wchars(term_t t, int type, size_t len, const pl_wchar_t *char
     if (LOCAL_Error_TYPE && !Yap_SWIHandleError( "PL_unify_wchars" ))
       return FALSE;
   }
+  return FALSE;
 }
 
 typedef struct {
@@ -2233,43 +2234,43 @@ X_API qid_t PL_open_query(module_t ctx, int flags, predicate_t p, term_t t0)
     t = Yap_AddressFromSlot(t0 PASS_REGS);
 
   /* ignore flags  and module for now */
-  open_query *new = (open_query *)Yap_AllocCodeSpace(sizeof(open_query));
+  qid_t new = (qid_t)Yap_AllocCodeSpace(sizeof(struct open_query_struct));
   LOCAL_execution = new;
-  new->open=1;
-  new->state=0;
-  new->flags = flags;
-  new->pe = (PredEntry *)p;
-  new->g = t;
-  return LOCAL_execution;
+  new->q_open=1;
+  new->q_state=0;
+  new->q_flags = flags;
+  new->q_pe = (PredEntry *)p;
+  new->q_g = t;
+  return new;
 }
 
 X_API int PL_next_solution(qid_t qi)
 {
   CACHE_REGS
   int result;
-  if (qi->open != 1) return 0;
-  if (setjmp(LOCAL_execution->env))
+  if (qi->q_open != 1) return 0;
+  if (setjmp(LOCAL_execution->q_env))
     return 0;
   // don't forget, on success these guys must create slots
-  if (qi->state == 0) {
-    result = YAP_EnterGoal((YAP_PredEntryPtr)qi->pe, qi->g, &qi->h);
+  if (qi->q_state == 0) {
+    result = YAP_EnterGoal((YAP_PredEntryPtr)qi->q_pe, qi->q_g, &qi->q_h);
   } else {
-    LOCAL_AllowRestart = qi->open;
-    result = YAP_RetryGoal(&qi->h);
+    LOCAL_AllowRestart = qi->q_open;
+    result = YAP_RetryGoal(&qi->q_h);
   }
-  qi->state = 1;
+  qi->q_state = 1;
   if (result == 0) {
-    YAP_LeaveGoal(FALSE, &qi->h);
-    qi->open = 0;
+    YAP_LeaveGoal(FALSE, &qi->q_h);
+    qi->q_open = 0;
   }
   return result;
 }
 
 X_API void PL_cut_query(qid_t qi)
 {
-  if (qi->open != 1 || qi->state == 0) return;
-  YAP_LeaveGoal(FALSE, &qi->h);
-  qi->open = 0;
+  if (qi->q_open != 1 || qi->q_state == 0) return;
+  YAP_LeaveGoal(FALSE, &qi->q_h);
+  qi->q_open = 0;
   Yap_FreeCodeSpace( (char *)qi );
 }
 
@@ -2277,15 +2278,15 @@ X_API void PL_close_query(qid_t qi)
 {
   CACHE_REGS
 
-  if (EX && !(qi->flags & (PL_Q_CATCH_EXCEPTION))) {
+  if (EX && !(qi->q_flags & (PL_Q_CATCH_EXCEPTION))) {
     EX = NULL;
   }
   /* need to implement backtracking here */
-  if (qi->open != 1 || qi->state == 0) {
+  if (qi->q_open != 1 || qi->q_state == 0) {
     return;
   }
-  YAP_LeaveGoal(FALSE, &qi->h);
-  qi->open = 0;
+  YAP_LeaveGoal(FALSE, &qi->q_h);
+  qi->q_open = 0;
   Yap_FreeCodeSpace( (char *)qi );
 }
 
@@ -2306,6 +2307,7 @@ X_API int PL_toplevel(void)
       return TRUE;
     }
   }
+  return TRUE;
 }
 
 X_API int PL_call(term_t tp, module_t m)
diff --git a/library/dialect/swi/fli/swi.h b/library/dialect/swi/fli/swi.h
index 6888d9fcc..2ac8cfb59 100644
--- a/library/dialect/swi/fli/swi.h
+++ b/library/dialect/swi/fli/swi.h
@@ -2,14 +2,14 @@ void Yap_swi_install(void);
 void Yap_install_blobs(void);
 
 typedef struct open_query_struct {
-  int open;
-  int state;
-  YAP_Term *g;
-  PredEntry *pe;
-  yamop *p, *cp;
-  jmp_buf env;
-  int flags;
-  YAP_dogoalinfo h;
+  int q_open;
+  int q_state;
+  YAP_Term *q_g;
+  PredEntry *q_pe;
+  yamop *q_p, *q_cp;
+  jmp_buf q_env;
+  int q_flags;
+  YAP_dogoalinfo q_h;
 } open_query;
 
 #define addr_hash(V) (((CELL) (V)) >> 4 & (N_SWI_HASH-1))
diff --git a/misc/Yap.spec b/misc/Yap.spec
index 2948cebb9..f14db39b7 100644
--- a/misc/Yap.spec
+++ b/misc/Yap.spec
@@ -54,7 +54,7 @@ rm -rf $RPM_BUILD_ROOT $RPM_BUILD_DIR/file.list.%{name}
 
 %files
 %defattr(-,root,root,-)
-%doc README*
+%doc README.TXT
 %doc INSTALL
 %doc changes-6.0.html
 %doc changes-5.1.html
diff --git a/misc/yap.nsi b/misc/yap.nsi
index 9bbcecc96..404782f58 100755
--- a/misc/yap.nsi
+++ b/misc/yap.nsi
@@ -76,7 +76,7 @@ Section "Base system (required)"
   File c:\${ROOTDIR}\share\doc\Yap\yap.pdf
 ;  File c:\${ROOTDIR}\share\doc\Yap\yap.info
   File c:\${ROOTDIR}\share\doc\Yap\Artistic
-  File c:\${ROOTDIR}\share\doc\Yap\README
+  File c:\${ROOTDIR}\share\doc\Yap\README.TXT
   File c:\${ROOTDIR}\share\doc\Yap\COPYING
 
   WriteRegStr HKLM ${REGKEY} "home" "$INSTDIR"
@@ -116,8 +116,8 @@ Section "Start Menu shortcuts"
 		 "$INSTDIR\bin\yap.exe" \
 		 0
   CreateShortCut "$SMPROGRAMS\${GRP}\Readme.lnk" \
-  		  "$INSTDIR\share\doc\Yap\README" "" \
-		  "$INSTDIR\share\doc\Yap\README" 0 \
+  		  "$INSTDIR\share\doc\Yap\README.TXT" "" \
+		  "$INSTDIR\share\doc\Yap\README.TXT" 0 \
 		  "SW_SHOWNORMAL" "" "View readme"
   CreateShortCut "$SMPROGRAMS\${GRP}\Manual Html.lnk" \
   		  "$INSTDIR\share\doc\Yap\yap.html" "" \
@@ -318,7 +318,7 @@ FunctionEnd
 
 Function .onInstSuccess
   MessageBox MB_YESNO "Installation complete. View readme?" IDNO NoReadme
-  ExecShell "open" "$INSTDIR\share\doc\Yap\README"
+  ExecShell "open" "$INSTDIR\share\doc\Yap\README.TXT"
   NoReadme:
 FunctionEnd
 
diff --git a/os/SWI-Stream.h b/os/SWI-Stream.h
index bda9e43ad..c6bc44409 100755
--- a/os/SWI-Stream.h
+++ b/os/SWI-Stream.h
@@ -230,9 +230,13 @@ PL_EXPORT_DATA(IOSTREAM)    S__iob[3];		/* Libs standard streams */
 #define Sgetchar()	Sgetc(Sinput)
 #define Sputchar(c)	Sputc((c), Soutput)
 
-#define S__checkpasteeof(s,c) \
-	if ( (c)==-1 && (s)->flags & (SIO_FEOF|SIO_FERR) ) \
-	  ((s)->flags |= SIO_FEOF2)
+static inline void
+S__checkpasteeof(IOSTREAM *s, int c)
+{
+  if ( (c)==-1 && ((s)->flags & (SIO_FEOF|SIO_FERR)) )
+    ((s)->flags |= SIO_FEOF2);
+}
+
 #define S__updatefilepos_getc(s, c) \
 	((s)->position ? S__fupdatefilepos_getc((s), (c)) \
 		       : S__fcheckpasteeof((s), (c)))
diff --git a/os/pl-ctype.c b/os/pl-ctype.c
index 6b22acc8a..8f438e128 100644
--- a/os/pl-ctype.c
+++ b/os/pl-ctype.c
@@ -671,7 +671,7 @@ PRED_IMPL("normalize_space", 2, normalize_space, 0)
 		 *	       LOCALE		*
 		 *******************************/
 
-#if defined(HAVE_LOCALE_H) && defined(HAVE_SETLOCALE)
+#if O_LOCALE
 #include <locale.h>
 
 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -843,15 +843,20 @@ static const enc_map map[] =
 IOENC
 initEncoding(void)
 { GET_LD
+#if HAVE_SETLOCALE
+    char *enc;
+#endif
 
   if ( LD )
   { if ( !LD->encoding )
-      { char *enc, *encp;
+      {
 
       if ( !init_locale() )
       { LD->encoding = ENC_ISO_LATIN_1;
+#if HAVE_SETLOCALE
       } else if ( (enc = setlocale(LC_CTYPE, NULL)) )
-      { LD->encoding = ENC_ANSI;		/* text encoding */
+      {  char *encp;
+	LD->encoding = ENC_ANSI;		/* text encoding */
 
 	if ( (encp = strchr(enc, '.')) )
 	{ const enc_map *m;
@@ -874,8 +879,8 @@ initEncoding(void)
 	    }
 	  }
 	}
-      } else
-      { LD->encoding = ENC_ISO_LATIN_1;
+#endif
+      } else { LD->encoding = ENC_ISO_LATIN_1;
       }
     }
 
diff --git a/os/pl-file.c b/os/pl-file.c
index 1e08c0fa4..53f8578ed 100755
--- a/os/pl-file.c
+++ b/os/pl-file.c
@@ -1579,12 +1579,14 @@ readLine(IOSTREAM *in, IOSTREAM *out, char *buffer)
 	  buf--;
 	  continue;
 	}
+        /*FALLTHROUGH*/
       default:
 	if ( truePrologFlag(PLFLAG_TTY_CONTROL) )
 	  Sputcode(c, out);
 	*buf++ = c;
     }
   }
+  return FALSE; /* make eclipse happy */
 }
 
 
@@ -1898,9 +1900,9 @@ set_stream(IOSTREAM *s, term_t stream, atom_t aname, term_t a ARG_LD)
 
     clear(s, SIO_REPXML|SIO_REPPL);
 
-    if ( val == ATOM_error )
+    if ( val == ATOM_error ) {
       ;
-    else if ( val == ATOM_xml )
+    } else if ( val == ATOM_xml )
       set(s, SIO_REPXML);
     else if ( val == ATOM_prolog )
       set(s, SIO_REPPL);
@@ -2006,7 +2008,7 @@ found:
   ref = PL_blob_data(sblob, NULL, &type);
   if ( type == &stream_blob )		/* got a stream handle */
   { if ( ref->read && ref->write &&	/* stream pair */
-	 info->flags & SS_NOPAIR )
+	 (info->flags & SS_NOPAIR) )
       return PL_error("set_stream", 2, NULL, ERR_PERMISSION,
 		      aname, ATOM_stream_pair, stream);
 
@@ -3419,7 +3421,7 @@ pl_seen(void)
 
   pop_input_context();
 
-  if ( s && s->flags & SIO_NOFEOF )
+  if ( s && (s->flags & SIO_NOFEOF) )
     return TRUE;
 
   if ( s )
@@ -3521,7 +3523,7 @@ PRED_IMPL("told", 0, told, 0)
 
   popOutputContext();
 
-  if ( s && s->flags & SIO_NOFEOF )
+  if ( s && (s->flags & SIO_NOFEOF) )
     return TRUE;
 
   if ( s )
@@ -4270,6 +4272,7 @@ PRED_IMPL("stream_property", 2, stream_property,
       return FALSE;
     }
   }
+  return FALSE;
 }
 
 
diff --git a/os/pl-files.c b/os/pl-files.c
index 66221f7b2..f93a1e5d9 100755
--- a/os/pl-files.c
+++ b/os/pl-files.c
@@ -511,13 +511,13 @@ get_file_name(term_t n, char **namep, char *tmp, int flags)
 
       PL_put_term(av+0, n);
 
-      if ( rc && flags & PL_FILE_EXIST )
+      if ( rc && (flags & PL_FILE_EXIST) )
 	rc = add_option(options, FUNCTOR_access1, ATOM_exist);
-      if ( rc && flags & PL_FILE_READ )
+      if ( rc && (flags & PL_FILE_READ) )
 	rc = add_option(options, FUNCTOR_access1, ATOM_read);
-      if ( rc && flags & PL_FILE_WRITE )
+      if ( rc && (flags & PL_FILE_WRITE) )
 	rc = add_option(options, FUNCTOR_access1, ATOM_write);
-      if ( rc && flags & PL_FILE_EXECUTE )
+      if ( rc && (flags & PL_FILE_EXECUTE) )
 	rc = add_option(options, FUNCTOR_access1, ATOM_execute);
 
       if ( rc ) rc = PL_unify_nil(options);
diff --git a/os/pl-fmt.c b/os/pl-fmt.c
index 90ed15fc1..e247bfd88 100644
--- a/os/pl-fmt.c
+++ b/os/pl-fmt.c
@@ -1115,6 +1115,7 @@ formatInteger(PL_locale *locale, int div, int radix, bool smll, Number i,
   }
 }
 
+#if O_LOCALE
 
 static int
 countGroups(const char *grouping, int len)
@@ -1141,7 +1142,6 @@ countGroups(const char *grouping, int len)
   return groups;
 }
 
-
 static int
 ths_to_utf8(char *u8, const wchar_t *s, size_t len)
 { char *e = u8+len-7;
@@ -1153,7 +1153,6 @@ ths_to_utf8(char *u8, const wchar_t *s, size_t len)
   return *s == 0;
 }
 
-
 static int
 same_decimal_point(PL_locale *l1, PL_locale *l2)
 { if ( l1->decimal_point && l2->decimal_point &&
@@ -1165,7 +1164,6 @@ same_decimal_point(PL_locale *l1, PL_locale *l2)
   return FALSE;
 }
 
-
 static int
 utf8_dp(PL_locale *l, char *s, int *len)
 { if ( l->decimal_point )
@@ -1227,7 +1225,6 @@ localizeDecimalPoint(PL_locale *locale, Buffer b)
   return TRUE;
 }
 
-
 static int
 groupDigits(PL_locale *locale, Buffer b)
 { if ( locale->thousands_sep && locale->thousands_sep[0] &&
@@ -1278,6 +1275,7 @@ groupDigits(PL_locale *locale, Buffer b)
 
   return TRUE;
 }
+#endif
 
 
 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -1477,11 +1475,13 @@ formatFloat(PL_locale *locale, int how, int arg, Number f, Buffer out)
       return NULL;
   }
 
+#if O_LOCALE
   if ( locale )
   { if ( !localizeDecimalPoint(locale, out) ||
 	 !groupDigits(locale, out) )
       return NULL;
   }
+#endif
 
   return baseBuffer(out, char);
 }
diff --git a/os/pl-read.c b/os/pl-read.c
index 1e5a94c1a..648b0c123 100644
--- a/os/pl-read.c
+++ b/os/pl-read.c
@@ -968,7 +968,7 @@ static unsigned char *
 backSkipUTF8(unsigned const char *start, unsigned const char *end, int *chr)
 { const unsigned char *s;
 
-  for(s=end-1 ; s>start && *s&0x80; s--)
+  for(s=end-1 ; s>start && ( *s&0x80 ); s--)
     ;
   utf8_get_char((char*)s, chr);
 
diff --git a/os/pl-rl.c b/os/pl-rl.c
index f4dc7218f..735400d56 100755
--- a/os/pl-rl.c
+++ b/os/pl-rl.c
@@ -591,6 +591,9 @@ PL_install_readline(void)
 #ifndef __WINDOWS__
   if ( !truePrologFlag(PLFLAG_TTY_CONTROL) || !isatty(0) )
     return;
+  // don't allow YAP to run readline under an Eclipse Console
+  if (getenv("EclipseVersion"))
+	return;
 #endif
 
   alevel = setAccessLevel(ACCESS_LEVEL_SYSTEM);
diff --git a/os/pl-stream.c b/os/pl-stream.c
index 3b732df4d..7bb43a842 100755
--- a/os/pl-stream.c
+++ b/os/pl-stream.c
@@ -57,7 +57,9 @@ locking is required.
 #endif
 
 #define PL_KERNEL 1
+#if HAVE_LOCALE_H && HAVE_SETLOCALE
 #define O_LOCALE 1
+#endif
 #include <wchar.h>
 #define NEEDS_SWINSOCK
 #include "SWI-Stream.h"
@@ -633,6 +635,7 @@ update_linepos(IOSTREAM *s, int c)
       break;
     case '\t':
       p->linepos |= 7;
+      /*FALLTHROUGH*/
     default:
       p->linepos++;
   }
@@ -1342,6 +1345,7 @@ ScheckBOM(IOSTREAM *s)
       return 0;				/* empty stream */
     s->bufp--;
   }
+  return 0;
 }
 
 
@@ -1799,8 +1803,10 @@ Sclose(IOSTREAM *s)
 
   if ( s->message )
     free(s->message);
+#if O_LOCALE
   if ( s->locale )
     releaseLocale(s->locale);
+#endif
   if ( s->references == 0 )
     unallocStream(s);
   else
@@ -2647,6 +2653,7 @@ Sread_file(void *handle, char *buf, size_t size)
 
     return bytes;
   }
+  return -1;
 }
 
 
diff --git a/os/windows/uxnt.c b/os/windows/uxnt.c
index b5632b9f3..b75a658bf 100755
--- a/os/windows/uxnt.c
+++ b/os/windows/uxnt.c
@@ -21,6 +21,8 @@
     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
+#if defined(_WIN32) || defined(__MINGW32__)
+
 #define UNICODE 1
 #define _UNICODE 1
 
@@ -781,6 +783,8 @@ out:
 simple:
   retval = _waccess(buf, mode);
   goto out;
+
+  return FALSE;
 }
 
 
@@ -943,6 +947,7 @@ readdir(DIR *dp)
     if ( (de = translate_data(dp)) )
       return de;
   }
+return 	FALSE;
 }
 
 
@@ -1070,3 +1075,6 @@ _xos_setenv(const char *name, char *value, int overwrite)
 
   return -1;				/* TBD: convert error */
 }
+
+#endif
+
diff --git a/packages/CLPBN/horus/HorusCli.cpp b/packages/CLPBN/horus/HorusCli.cpp
index a8b8f8b79..f5ae48e05 100644
--- a/packages/CLPBN/horus/HorusCli.cpp
+++ b/packages/CLPBN/horus/HorusCli.cpp
@@ -131,7 +131,7 @@ readQueryAndEvidence (
       }
       Horus::VarId vid = Horus::Util::stringToUnsigned (arg);
       Horus::VarNode* queryVar = fg.getVarNode (vid);
-      if (queryVar == false) {
+      if (queryVar == nullptr) {
         std::cerr << "Error: unknow variable with id " ;
         std::cerr << "`" << vid << "'."  << std::endl;
         exit (EXIT_FAILURE);
@@ -153,7 +153,7 @@ readQueryAndEvidence (
       }
       Horus::VarId vid = Horus::Util::stringToUnsigned (leftArg);
       Horus::VarNode* observedVar = fg.getVarNode (vid);
-      if (observedVar == false) {
+      if (observedVar == nullptr) {
         std::cerr << "Error: unknow variable with id " ;
         std::cerr << "`" << vid << "'."  << std::endl;
         exit (EXIT_FAILURE);
diff --git a/packages/ProbLog/simplecudd/Makefile.in b/packages/ProbLog/simplecudd/Makefile.in
index 29950bab5..7e8035af8 100755
--- a/packages/ProbLog/simplecudd/Makefile.in
+++ b/packages/ProbLog/simplecudd/Makefile.in
@@ -59,7 +59,7 @@ clean:
 	rm -f *.o problogbdd
 
 install: default
-	$(INSTALL_PROGRAM) problogbdd $(DESTDIR)$(BINDIR)/Yap
+	$(INSTALL_PROGRAM) problogbdd $(DESTDIR)$(BINDIR)
 
 install-examples:
 
diff --git a/packages/ProbLog/simplecudd/simplecudd.c b/packages/ProbLog/simplecudd/simplecudd.c
index 33f20ae78..bdf498a4d 100644
--- a/packages/ProbLog/simplecudd/simplecudd.c
+++ b/packages/ProbLog/simplecudd/simplecudd.c
@@ -1201,7 +1201,7 @@ char* getFileName(const char *function) {
 DdNode* LineParser(DdManager *manager, namedvars varmap, DdNode **inter, int maxinter, char *function, int iline) {
   int istart, iend, ilength, i, symbol, ivar, inegvar, inegoper, iconst;
   long startAt, endAt;
-  double secs;
+  //double secs;
   DdNode *bdd;//, *temp;
   char *term, curoper;
   bdd = HIGH(manager);
@@ -1269,7 +1269,7 @@ DdNode* LineParser(DdManager *manager, namedvars varmap, DdNode **inter, int max
         } else {
           switch(curoper) {
             case '+':
-              if (inegvar ^ inegoper) ; else {
+              if (!(inegvar ^ inegoper)) {
                 bdd = HIGH(manager);
                 Cudd_Ref(bdd);
               }
@@ -1281,12 +1281,12 @@ DdNode* LineParser(DdManager *manager, namedvars varmap, DdNode **inter, int max
               }
               break;
             case '#':
-              if (inegvar ^ inegoper) ; else bdd = NOT(bdd);
+              if (!(inegvar ^ inegoper)) bdd = NOT(bdd);
               break;
           }
         }
         endAt = clock();
-        secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
+        //secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
         if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt);
         //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager);
         if (bdd == NULL) {
@@ -1318,7 +1318,7 @@ DdNode* LineParser(DdManager *manager, namedvars varmap, DdNode **inter, int max
         if (inegvar) bdd = BDD_Operator(manager, NOT(inter[ivar]), bdd, curoper, inegoper);
         else bdd = BDD_Operator(manager, inter[ivar], bdd, curoper, inegoper);
         endAt = clock();
-        secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
+        //secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
         if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt);
         //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager);
         if (bdd == NULL) {
@@ -1513,7 +1513,7 @@ DdNode* OnlineGenerateBDD(DdManager *manager, namedvars *varmap) {
 DdNode* OnlineLineParser(DdManager *manager, namedvars *varmap, DdNode **inter, int maxinter, char *function, int iline) {
   int istart, iend, ilength, i, symbol, ivar, inegvar, inegoper, iconst;
   long startAt, endAt;
-  double secs;
+  //double secs;
   DdNode *bdd;
   char *term, curoper;
   bdd = HIGH(manager);
@@ -1581,7 +1581,7 @@ DdNode* OnlineLineParser(DdManager *manager, namedvars *varmap, DdNode **inter,
         } else {
           switch(curoper) {
             case '+':
-              if (inegvar ^ inegoper) ; else {
+              if (!(inegvar ^ inegoper))  {
                 bdd = HIGH(manager);
                 Cudd_Ref(bdd);
               }
@@ -1593,12 +1593,12 @@ DdNode* OnlineLineParser(DdManager *manager, namedvars *varmap, DdNode **inter,
               }
               break;
             case '#':
-              if (inegvar ^ inegoper) ; else bdd = NOT(bdd);
+              if (!(inegvar ^ inegoper)) bdd = NOT(bdd);
               break;
           }
         }
         endAt = clock();
-        secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
+        //secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
         if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt);
         //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager);
         if (bdd == NULL) {
@@ -1630,7 +1630,7 @@ DdNode* OnlineLineParser(DdManager *manager, namedvars *varmap, DdNode **inter,
         if (inegvar) bdd = BDD_Operator(manager, NOT(inter[ivar]), bdd, curoper, inegoper);
         else bdd = BDD_Operator(manager, inter[ivar], bdd, curoper, inegoper);
         endAt = clock();
-        secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
+        //secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC);
         if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt);
         //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager);
         if (bdd == NULL) {
diff --git a/packages/ProbLog/simplecudd_lfi/problogbdd_lfi.c b/packages/ProbLog/simplecudd_lfi/problogbdd_lfi.c
index 68868d590..dfdae88e1 100644
--- a/packages/ProbLog/simplecudd_lfi/problogbdd_lfi.c
+++ b/packages/ProbLog/simplecudd_lfi/problogbdd_lfi.c
@@ -761,7 +761,7 @@ double CalcExpectedCounts(extmanager * MyManager, DdNode *Current, char *query_i
   // fprintf(stderr,"%%calcing down\n");
   
   if (calcdown_needed != 0) {
-    double retd=CalcExpectedCountsDown(MyManager,Current, query_id);
+    // double retd=CalcExpectedCountsDown(MyManager,Current, query_id);
   }
 /*   if(1 != retd){ */
 /*     fprintf(stderr,"down %e != up %e/%e\n",ret,retd,ret); */
@@ -807,7 +807,7 @@ double CalcExpectedCounts(extmanager * MyManager, DdNode *Current, char *query_i
 #define LOG_EXPECTED  0
 
 
-
+static
 void PrintNodeQueue(Queue q , extmanager MyManager){
 
     QueueIterator qiter = QueueIteratorNew(q, 1);
@@ -824,6 +824,8 @@ void PrintNodeQueue(Queue q , extmanager MyManager){
  /** also nesting in CalcExpected seems to not work (must be here nested only valid within function frame)*/
 /* will be changed at later stage */
 static extmanager * ineedtostorethatsomehow;
+
+static
 int comparator(void *av, void *bv){
     int ret = 0;
     DdNode* a = (DdNode*)av;
@@ -852,7 +854,11 @@ int comparator(void *av, void *bv){
     return ret;
 }
 
+static void
+skip_nodes_cnt(extmanager * MyManager, double (*counts)[] , int skipcnt, DdNode* l,double dprob, char *query_id);
+
 /** output information for skipped nodes **/
+static void
 skip_nodes(extmanager * MyManager, double (*counts)[] , DdNode* node, DdNode* l,double dprob, char *query_id){
   int skipcnt;
   skipcnt = Cudd_ReadPerm(MyManager->manager,GetIndex(node))+1;
@@ -866,9 +872,10 @@ skip_nodes(extmanager * MyManager, double (*counts)[] , DdNode* node, DdNode* l,
 			   Cudd_IsConstant(l)
 			   );
   }
-  return skip_nodes_cnt( MyManager, counts,  skipcnt,  l, dprob, query_id);
-
+  skip_nodes_cnt( MyManager, counts,  skipcnt,  l, dprob, query_id);
 }
+
+static void
 skip_nodes_cnt(extmanager * MyManager, double (*counts)[] , int skipcnt, DdNode* l,double dprob, char *query_id){
   if(LOG_EXPECTED) fprintf(stderr,"====================\n");
   double p;
@@ -954,7 +961,7 @@ double CalcExpectedCountsDown(extmanager * MyManager, DdNode *Current, char *que
     if(LOG_EXPECTED){PrintNodeQueue(q,*MyManager);}
     node=QueueGet(q);
     curnode = GetNodeVarNameDisp(MyManager->manager, MyManager->varmap, node);
-    int level = Cudd_ReadPerm(MyManager->manager,GetIndex(node));
+    // int level = Cudd_ReadPerm(MyManager->manager,GetIndex(node));
     if(!Cudd_IsConstant(node)){
     tvalue = MyManager->varmap.dvalue[GetIndex(node) - MyManager->varmap.varstart];
     ivalue = MyManager->varmap.ivalue[GetIndex(node) - MyManager->varmap.varstart];
diff --git a/packages/jpl b/packages/jpl
index 77759f849..e4ecf86fb 160000
--- a/packages/jpl
+++ b/packages/jpl
@@ -1 +1 @@
-Subproject commit 77759f84962a5f77a970d0cdcc9647fdc8e7bbfb
+Subproject commit e4ecf86fb3422538b107a35372e1888e75ae1f8b
diff --git a/packages/prism/src/c/up/em_aux_ml.c b/packages/prism/src/c/up/em_aux_ml.c
index 025264a7f..878dc108b 100644
--- a/packages/prism/src/c/up/em_aux_ml.c
+++ b/packages/prism/src/c/up/em_aux_ml.c
@@ -48,6 +48,7 @@ int check_smooth(int *smooth)
     case 1: /* p.counts = (none), with 0-valued params */
         emit_internal_error("unexpected case in check_smooth()");
         RET_ERR(ierr_unmatched_branches);
+	break;
     case 2: /* p.counts = 0 only, w/o  0-valued params */
     case 3: /* p.counts = 0 only, with 0-valued params */
         *smooth = 0;
@@ -58,6 +59,7 @@ int check_smooth(int *smooth)
     case 5: /* p.counts = + only, with 0-valued params */
         emit_error("parameters fixed to zero in MAP estimation");
         RET_ERR(err_invalid_numeric_value);
+        break;
     case 6: /* p.counts = (both), w/o  0-valued params */
     case 7: /* p.counts = (both), with 0-valued params */
         emit_error("mixture of zero and non-zero pseudo counts");
diff --git a/packages/prism/src/c/up/util.c b/packages/prism/src/c/up/util.c
index 93103afff..4306b8077 100644
--- a/packages/prism/src/c/up/util.c
+++ b/packages/prism/src/c/up/util.c
@@ -60,7 +60,7 @@ int get_term_depth(TERM t)
 
     XDEREF(t);
 
-    SWITCH_OP(t, l_term_depth, { return 0; }, { return 0; }, {
+    SWITCH_OP(t, l_term_depth, { return 0; }, { return (0); }, {
         if (IsNumberedVar(t)) return 0;
 
         d = 0;
diff --git a/packages/real b/packages/real
index 34cac46db..10fd754c6 160000
--- a/packages/real
+++ b/packages/real
@@ -1 +1 @@
-Subproject commit 34cac46db62cad37386ea3321de37c0349eb9852
+Subproject commit 10fd754c6561313835d4e1ff557d654b3225365e
diff --git a/packages/swi-minisat2/C/SolverTypes.h b/packages/swi-minisat2/C/SolverTypes.h
index f62cff827..75eaebd8d 100644
--- a/packages/swi-minisat2/C/SolverTypes.h
+++ b/packages/swi-minisat2/C/SolverTypes.h
@@ -119,7 +119,7 @@ public:
 
     // -- use this function instead:
     template<class V>
-    friend Clause* Clause_new(const V& ps, bool learnt = false);
+    friend Clause* Clause_new(const V& ps, bool learnt);
 
     int          size        ()      const   { return size_etc >> 3; }
     void         shrink      (int i)         { assert(i <= size()); size_etc = (((size_etc >> 3) - i) << 3) | (size_etc & 7); }