diff --git a/ChangeLog b/ChangeLog
index 393872315..d1e45e4d4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2013-01-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
+
+	* configure.ac: Sync with GCC repo.
+	* configure: Ditto.
+	* Makefile.def: Ditto.
+	* Makefile.in: Ditto.
+
 2013-01-11  Joel Brobecker  <brobecker@adacore.com>
 
 	Sync with GCC, merge:
diff --git a/Makefile.def b/Makefile.def
index bc5c0fc93..1af7460d2 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -524,6 +524,7 @@ dependencies = { module=all-target-libstdc++-v3; on=configure-target-libgomp; };
 dependencies = { module=install-target-libgo; on=install-target-libatomic; };
 dependencies = { module=install-target-libgfortran; on=install-target-libquadmath; };
 dependencies = { module=install-target-libgfortran; on=install-target-libgcc; };
+dependencies = { module=install-target-libsanitizer; on=install-target-libstdc++-v3; };
 dependencies = { module=install-target-libsanitizer; on=install-target-libgcc; };
 dependencies = { module=install-target-libjava; on=install-target-libgcc; };
 dependencies = { module=install-target-libitm; on=install-target-libgcc; };
diff --git a/Makefile.in b/Makefile.in
index a2ce3545e..08049deb9 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -46216,6 +46216,7 @@ all-stagefeedback-target-libstdc++-v3: maybe-configure-stagefeedback-target-libg
 install-target-libgo: maybe-install-target-libatomic
 install-target-libgfortran: maybe-install-target-libquadmath
 install-target-libgfortran: maybe-install-target-libgcc
+install-target-libsanitizer: maybe-install-target-libstdc++-v3
 install-target-libsanitizer: maybe-install-target-libgcc
 install-target-libjava: maybe-install-target-libgcc
 install-target-libitm: maybe-install-target-libgcc
diff --git a/configure b/configure
index 8a3227516..30b684355 100755
--- a/configure
+++ b/configure
@@ -5819,6 +5819,8 @@ fi
     isllibs='-L$$r/$(HOST_SUBDIR)/isl/'"$lt_cv_objdir"' '
     islinc='-I$$r/$(HOST_SUBDIR)/isl/include -I$$s/isl/include'
     ENABLE_ISL_CHECK=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using in-tree ISL, disabling version check" >&5
+$as_echo "$as_me: WARNING: using in-tree ISL, disabling version check" >&2;}
   fi
 
 
@@ -5835,10 +5837,7 @@ fi
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.10 of ISL" >&5
 $as_echo_n "checking for version 0.10 of ISL... " >&6; }
-if test "${gcc_cv_isl+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
+    if test "$cross_compiling" = yes; then :
   gcc_cv_isl=yes
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5864,8 +5863,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
 $as_echo "$gcc_cv_isl" >&6; }
 
     CFLAGS=$_isl_saved_CFLAGS
@@ -5874,6 +5872,56 @@ $as_echo "$gcc_cv_isl" >&6; }
   fi
 
 
+  if test "${gcc_cv_isl}" = no ; then
+
+  if test "${ENABLE_ISL_CHECK}" = yes ; then
+    _isl_saved_CFLAGS=$CFLAGS
+    _isl_saved_LDFLAGS=$LDFLAGS
+    _isl_saved_LIBS=$LIBS
+
+    CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
+    LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
+    LIBS="${_isl_saved_LIBS} -lisl"
+    echo $CFLAGS
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.11 of ISL" >&5
+$as_echo_n "checking for version 0.11 of ISL... " >&6; }
+    if test "$cross_compiling" = yes; then :
+  gcc_cv_isl=yes
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <isl/version.h>
+   #include <string.h>
+int
+main ()
+{
+if (strncmp (isl_version (), "isl-0.11", strlen ("isl-0.11")) != 0)
+     return 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_isl=yes
+else
+  gcc_cv_isl=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+$as_echo "$gcc_cv_isl" >&6; }
+
+    CFLAGS=$_isl_saved_CFLAGS
+    LDFLAGS=$_isl_saved_LDFLAGS
+    LIBS=$_isl_saved_LIBS
+  fi
+
+
+  fi
 
 
 
@@ -5947,10 +5995,13 @@ fi
   if test "x${with_cloog_lib}" != x; then
     clooglibs="-L$with_cloog_lib"
   fi
-      if test "x${clooginc}" = x && test "x${clooglibs}" = x \
+        if test "x${clooginc}" = x && test "x${clooglibs}" = x \
      && test -d ${srcdir}/cloog; then
      clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
      clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include -I'${srcdir}'/cloog/include '
+    ENABLE_CLOOG_CHECK=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using in-tree CLooG, disabling version check" >&5
+$as_echo "$as_me: WARNING: using in-tree CLooG, disabling version check" >&2;}
   fi
 
   clooginc="-DCLOOG_INT_GMP ${clooginc}"
@@ -5969,10 +6020,7 @@ fi
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.17.0 of CLooG" >&5
 $as_echo_n "checking for version 0.17.0 of CLooG... " >&6; }
-if test "${gcc_cv_cloog+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include "cloog/version.h"
 int
@@ -5993,8 +6041,7 @@ else
   gcc_cv_cloog=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
 $as_echo "$gcc_cv_cloog" >&6; }
 
     CFLAGS=$_cloog_saved_CFLAGS
@@ -6002,6 +6049,49 @@ $as_echo "$gcc_cv_cloog" >&6; }
   fi
 
 
+    if test "${gcc_cv_cloog}" = no ; then
+
+
+
+  if test "${ENABLE_CLOOG_CHECK}" = yes ; then
+    _cloog_saved_CFLAGS=$CFLAGS
+    _cloog_saved_LDFLAGS=$LDFLAGS
+
+    CFLAGS="${_cloog_saved_CFLAGS} ${clooginc} ${islinc} ${gmpinc}"
+    LDFLAGS="${_cloog_saved_LDFLAGS} ${clooglibs} ${isllibs} ${gmplib}"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.18.0 of CLooG" >&5
+$as_echo_n "checking for version 0.18.0 of CLooG... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include "cloog/version.h"
+int
+main ()
+{
+#if CLOOG_VERSION_MAJOR != 0 \
+    || CLOOG_VERSION_MINOR != 18 \
+    || CLOOG_VERSION_REVISION < 0
+    choke me
+   #endif
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gcc_cv_cloog=yes
+else
+  gcc_cv_cloog=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
+$as_echo "$gcc_cv_cloog" >&6; }
+
+    CFLAGS=$_cloog_saved_CFLAGS
+    LDFLAGS=$_cloog_saved_LDFLAGS
+  fi
+
+
+    fi
 
 
 
diff --git a/configure.ac b/configure.ac
index 02720ee1b..739cdc786 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1606,8 +1606,11 @@ if test "x$with_isl" != "xno" &&
   dnl Provide configure switches and initialize islinc & isllibs
   dnl with user input.
   ISL_INIT_FLAGS
-  dnl The minimal version of ISL required for Graphite.
+  dnl The versions of ISL that work for Graphite
   ISL_CHECK_VERSION(0,10)
+  if test "${gcc_cv_isl}" = no ; then
+    ISL_CHECK_VERSION(0,11)
+  fi
   dnl Only execute fail-action, if ISL has been requested.
   ISL_IF_FAILED([
     AC_MSG_ERROR([Unable to find a usable ISL.  See config.log for details.])])
@@ -1617,11 +1620,11 @@ if test "x$with_isl" != "xno" &&
     dnl Provide configure switches and initialize clooginc & clooglibs
     dnl with user input.
     CLOOG_INIT_FLAGS
-    dnl The minimal version of CLooG required for Graphite.
-    dnl
-    dnl If we use CLooG-Legacy, the provided version information is
-    dnl ignored.
+    dnl The versions of CLooG that work for Graphite.
     CLOOG_CHECK_VERSION(0,17,0)
+    if test "${gcc_cv_cloog}" = no ; then
+      CLOOG_CHECK_VERSION(0,18,0)
+    fi
 
     dnl Only execute fail-action, if CLooG has been requested.
     CLOOG_IF_FAILED([