diff --git a/configure b/configure
index c4c615742..bd03306b7 100755
--- a/configure
+++ b/configure
@@ -4337,7 +4337,7 @@ $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 GECODE_VERSION=unknown-gecode-version
-GECODE_EXTRALIBS=
+GECODE_EXTRALIBS=-lgecodesupport -lgecodekernel -lgecodeint -lgecodeset -lgecodesearch
 
 
 if test "$use_gecode" = yes; then
diff --git a/configure.in b/configure.in
index 6380a000b..dc498af47 100755
--- a/configure.in
+++ b/configure.in
@@ -98,7 +98,7 @@ AC_COMPILE_IFELSE([
   AC_MSG_RESULT([no])
   ])
 GECODE_VERSION=unknown-gecode-version
-GECODE_EXTRALIBS=
+GECODE_EXTRALIBS=-lgecodesupport -lgecodekernel -lgecodeint -lgecodeset -lgecodesearch
 AC_SUBST(GECODE_VERSION)
 AC_SUBST(GECODE_EXTRALIBS)
 if test "$use_gecode" = yes; then
diff --git a/library/gecode/Makefile.in b/library/gecode/Makefile.in
index 7fe32c30a..44314e1db 100644
--- a/library/gecode/Makefile.in
+++ b/library/gecode/Makefile.in
@@ -44,7 +44,7 @@ SOBJS=gecode_yap.@SO@
 
 GECODE_VERSION = @GECODE_VERSION@
 DISJUNCTOR = -DDISJUNCTOR
-GECODE_LIBS = @GECODE_EXTRALIBS@ -lgecodesupport -lgecodekernel -lgecodeint -lgecodeset -lgecodesearch
+GECODE_LIBS = @GECODE_EXTRALIBS@ 
 
 all: $(SOBJS) gecode.yap
 
@@ -59,7 +59,7 @@ gecode_yap.o: \
 	$(CXX) -c -I$(srcdir)/$(GECODE_VERSION) $(CXXFLAGS) $(DISJUNCTOR) -o $@ $<
 
 @DO_SECOND_LD@gecode_yap.@SO@: gecode_yap.o
-@DO_SECOND_LD@	@SHLIB_LD@ -o gecode_yap.@SO@ gecode_yap.o $(LDFLAGS) $(GECODE_LIBS) @EXTRA_LIBS_FOR_DLLS@
+@DO_SECOND_LD@	@SHLIB_CXX_LD@ -o gecode_yap.@SO@ gecode_yap.o $(LDFLAGS) $(GECODE_LIBS) @EXTRA_LIBS_FOR_DLLS@
 
 gecode.yap: $(srcdir)/gecode_yap_hand_written.yap $(srcdir)/$(GECODE_VERSION)/gecode_yap_auto_generated.yap
 	cat $^ > $@
diff --git a/os/pl-error.c b/os/pl-error.c
index 2055e1daa..43ede40b2 100644
--- a/os/pl-error.c
+++ b/os/pl-error.c
@@ -30,6 +30,8 @@ PL_get_chars_ex(term_t t, char **s, unsigned int flags)
 }
 
 
+#undef PL_get_atom_ex
+
 int
 PL_get_atom_ex__LD(term_t t, atom_t *a ARG_LD)
 { if ( PL_get_atom(t, a) )
@@ -38,6 +40,14 @@ PL_get_atom_ex__LD(term_t t, atom_t *a ARG_LD)
   return PL_error(NULL, 0, NULL, ERR_TYPE, ATOM_atom, t);
 }
 
+int
+PL_get_atom_ex(term_t t, atom_t *a)
+{ if ( PL_get_atom(t, a) )
+    succeed;
+
+  return PL_error(NULL, 0, NULL, ERR_TYPE, ATOM_atom, t);
+}
+
 
 int
 PL_get_integer_ex(term_t t, int *i)
diff --git a/packages/Dialect.defs.in b/packages/Dialect.defs.in
index ab04aa594..bc3aff68a 100644
--- a/packages/Dialect.defs.in
+++ b/packages/Dialect.defs.in
@@ -50,7 +50,7 @@ CFLAGS=$(COFLAGS) $(CWFLAGS) $(CMFLAGS) $(CIFLAGS) $(PKGCFLAGS) @DEFS@
 LDSOFLAGS=@LDFLAGS@ @EXTRA_LIBS_FOR_SWIDLLS@
 LDFLAGS=$(PKGLDFLAGS)
 
-MKINDEX=$(PL) -f none -g make -t halt
+MKINDEX=(cd $(srcdir) ; $(PL) -f none -g make -t halt)
 
 .txt.tex:
 	swipl -f script.pl -g "doc_latex('$*.txt','$*.tex',[stand_alone(false)]),halt" -t "halt(1)"
diff --git a/packages/clib b/packages/clib
index f0e208de6..e6b682d90 160000
--- a/packages/clib
+++ b/packages/clib
@@ -1 +1 @@
-Subproject commit f0e208de69f5303648fe1d035e2bfa164411d42d
+Subproject commit e6b682d909a4d63ee876af70c738d900449625fb
diff --git a/packages/zlib b/packages/zlib
index 1028ec347..2a859fd75 160000
--- a/packages/zlib
+++ b/packages/zlib
@@ -1 +1 @@
-Subproject commit 1028ec347935a5f61925541d7adcf6b08aca820c
+Subproject commit 2a859fd75795cc428e911b59abf8404c87b530f4