From b3fc79f86b7a36caf95121228e29245906932f9b Mon Sep 17 00:00:00 2001
From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Date: Sat, 21 Sep 2013 00:05:18 +0000
Subject: [PATCH] 2013-09-21  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* configure.ac: Update from GCC.
	* configure: Regenerate.
---
 ChangeLog    |  5 +++++
 configure    | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 configure.ac |  3 +++
 3 files changed, 57 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index a93e13e36d..ec02806c72 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-09-21  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
+
+	* configure.ac: Update from GCC.
+	* configure: Regenerate.
+
 2013-09-20  Alan Modra  <amodra@gmail.com>
 
 	* libtool.m4 (_LT_ENABLE_LOCK <ld -m flags>): Remove non-canonical
diff --git a/configure b/configure
index ee45e1b00f..a91689ff41 100755
--- a/configure
+++ b/configure
@@ -5965,6 +5965,55 @@ $as_echo "$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"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.12 of ISL" >&5
+$as_echo_n "checking for version 0.12 of ISL... " >&6; }
+    if test "$cross_compiling" = yes; then :
+  gcc_cv_isl=yes
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <isl/version.h>
+   #include <string.h>
+int
+main ()
+{
+if (strncmp (isl_version (), "isl-0.12", strlen ("isl-0.12")) != 0)
+     return 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$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
   fi
 
 
diff --git a/configure.ac b/configure.ac
index 6f3d801ab0..d72b40a7af 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1653,6 +1653,9 @@ if test "x$with_isl" != "xno" &&
   ISL_CHECK_VERSION(0,10)
   if test "${gcc_cv_isl}" = no ; then
     ISL_CHECK_VERSION(0,11)
+    if test "${gcc_cv_isl}" = no ; then
+      ISL_CHECK_VERSION(0,12)
+    fi
   fi
   dnl Only execute fail-action, if ISL has been requested.
   ISL_IF_FAILED([