Import changes made to files shared with the FSF GCC project.

	Import the following changes from the GCC mainline:

	2015-11-13  Tsvetkova Alexandra  <aleksandra.tsvetkova@intel.com>

	* configure.ac: Enable libmpx by default.
	* configure: Regenerated.

	2015-11-19  Martin Liska  <mliska@suse.cz>

	* .gitignore: Add .clang-format to ignored files.
	* Makefile.tpl: Add clang-format.
	* Makefile.in: Regenerate.

	2015-12-01  Andreas Tobler  <andreast@gcc.gnu.org>

	PR libffi/65726
	* Makefile.def (lang_env_dependencies): Make libffi depend
	on cxx.
	* Makefile.in: Regenerate.

	2015-12-02  Ian Lance Taylor  <iant@google.com>

	PR go/66147
	* Makefile.tpl (HOST_EXPORTS): Add XGCC_FLAGS_FOR_TARGET.
	* Makefile.in: Regenerate.

	2015-12-17  Nathan Sidwell  <nathan@acm.org>

	* config/isl.m4 (ISL_CHECK_VERSION): Add gmp libs.
	* configure: Regenerate.

	2015-12-17  Sebastian Pop  <s.pop@samsung.com>

	* Makefile.in: Replace ISL with isl.
	* Makefile.tpl: Same.
	* config/isl.m4: Same.
	* configure.ac: Same.
	* contrib/download_prerequisites: Same.
	* configure: Regenerate.

	2016-01-01  Ben Elliston  <bje@gnu.org>

	* config.guess: Import version 2016-01-01.
	* config.sub: Likewise.

include	2016-01-07  Mike Frysinger  <vapier@gentoo.org>

	* longlong.h: Change !__SHMEDIA__ to
	(!defined (__SHMEDIA__) || !__SHMEDIA__).
	Change __SHMEDIA__ to defined (__SHMEDIA__) && __SHMEDIA__.

1 files changed, 22 insertions, 19 deletions

diff --git a/configure b/configure
index 3bb1c038ae2..19eb2a4a44a 100755
--- a/configure
+++ b/configure
@@ -1492,7 +1492,7 @@ Optional Features:
                           build static libjava [default=no]
   --enable-bootstrap      enable bootstrapping [yes if native build]
   --disable-isl-version-check
-                          disable check for ISL version
+                          disable check for isl version
   --enable-lto            enable link time optimization support
   --enable-linker-plugin-configure-flags=FLAGS
                           additional flags for configuring linker plugins
@@ -1549,12 +1549,12 @@ Optional Packages:
   --with-boot-libs=LIBS   libraries for stage2 and later
   --with-boot-ldflags=FLAGS
                           linker flags for stage2 and later
-  --with-isl=PATH         Specify prefix directory for the installed ISL
+  --with-isl=PATH         Specify prefix directory for the installed isl
                           package. Equivalent to
                           --with-isl-include=PATH/include plus
                           --with-isl-lib=PATH/lib
-  --with-isl-include=PATH Specify directory for installed ISL include files
-  --with-isl-lib=PATH     Specify the directory for the installed ISL library
+  --with-isl-include=PATH Specify directory for installed isl include files
+  --with-isl-lib=PATH     Specify the directory for the installed isl library
   --with-build-sysroot=SYSROOT
                           use sysroot as the system root during the build
   --with-debug-prefix-map='A=B C=D ...'
@@ -3320,7 +3320,7 @@ fi
 
 # Enable libmpx on supported systems by request.
 if test -d ${srcdir}/libmpx; then
-    if test x$enable_libmpx = xyes; then
+    if test x$enable_libmpx = x; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libmpx support" >&5
 $as_echo_n "checking for libmpx support... " >&6; }
        if (srcdir=${srcdir}/libmpx; \
@@ -3334,8 +3334,6 @@ $as_echo "no" >&6; }
            { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
        fi
-    else
-       noconfigdirs="$noconfigdirs target-libmpx"
     fi
 fi
 
@@ -5945,7 +5943,7 @@ fi
 
 
 
-# GCC GRAPHITE dependency ISL.
+# GCC GRAPHITE dependency isl.
 # Basic setup is inlined here, actual checks are in config/isl.m4
 
 
@@ -5958,7 +5956,7 @@ fi
 # Treat --without-isl as a request to disable
 # GRAPHITE support and skip all following checks.
 if test "x$with_isl" != "xno"; then
-  # Check for ISL
+  # Check for isl
 
 
 # Check whether --with-isl-include was given.
@@ -6005,8 +6003,8 @@ 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;}
+    { $as_echo "$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
 
   isllibs="${isllibs} -lisl"
@@ -6019,18 +6017,18 @@ $as_echo "$as_me: WARNING: using in-tree ISL, disabling version check" >&2;}
     _isl_saved_LIBS=$LIBS
 
     CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
-    LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
-    LIBS="${_isl_saved_LIBS} -lisl"
+    LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs} ${gmplibs}"
+    LIBS="${_isl_saved_LIBS} -lisl -lgmp"
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for compatible ISL" >&5
-$as_echo_n "checking for compatible ISL... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isl 0.15 (or deprecated 0.14)" >&5
+$as_echo_n "checking for isl 0.15 (or deprecated 0.14)... " >&6; }
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <isl/val.h>
+#include <isl/ctx.h>
 int
 main ()
 {
-;
+isl_ctx_get_max_operations (isl_ctx_alloc ());
   ;
   return 0;
 }
@@ -6045,6 +6043,11 @@ rm -f core conftest.err conftest.$ac_objext \
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
 $as_echo "$gcc_cv_isl" >&6; }
 
+    if test "${gcc_cv_isl}" = no ; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: recommended isl version is 0.15, minimum required isl version 0.14 is deprecated" >&5
+$as_echo "recommended isl version is 0.15, minimum required isl version 0.14 is deprecated" >&6; }
+    fi
+
     CFLAGS=$_isl_saved_CFLAGS
     LDFLAGS=$_isl_saved_LDFLAGS
     LIBS=$_isl_saved_LIBS
@@ -6076,13 +6079,13 @@ $as_echo "$gcc_cv_isl" >&6; }
     && test "x${isllibs}" = x \
     && test "x${islinc}" = x ; then
 
-    as_fn_error "Unable to find a usable ISL.  See config.log for details." "$LINENO" 5
+    as_fn_error "Unable to find a usable isl.  See config.log for details." "$LINENO" 5
   fi
 
 
 fi
 
-# If the ISL check failed, disable builds of in-tree variant of ISL
+# If the isl check failed, disable builds of in-tree variant of isl
 if test "x$with_isl" = xno ||
    test "x$gcc_cv_isl" = xno; then
   noconfigdirs="$noconfigdirs isl"