Merge from gcc top-level.

./:
	* configure.ac: Add target-libgo to target_libraries.  Set
	and substitute GOC_FOR_BUILD and GOC_FOR_TARGET.
	* Makefile.tpl (BUILD_EXPORTS): Add GOC and GOCFLAGS.
	(HOST_EXPORTS): Add GOC.
	(BASE_TARGET_EXPORTS): Add GOC.
	(GOC_FOR_BUILD, GOCFLAGS, GOC_FOR_TARGET): New variables.
	(GOCFLAGS_FOR_TARGET): New variable.
	(EXTRA_HOST_FLAGS): Add GOC.
	(EXTRA_TARGET_FLAGS): Add GOC and GOCFLAGS.
	* Makefile.def (target_modules): Add libgo.
	(flags_to_pass): Add GOC_FOR_TARGET and GOCFLAGS_FOR_TARGET.
	(dependencies): Add dependency from configure-target-libgo to
	configure-target-libffi and all-target-libstdc++-v3.  Add
	dependencies from all-target-libgo to all-target-libffi.
	(languages): Add go.
	* configure: Rebuild.
	* Makefile.in: Rebuild.

	* config-ml.in: Add Go support: treat GOC and GOCFLAGS like other
	compiler/flag environment variables.

	* configure.ac: Check for lang_requires_boot_languages in
	config-lang.in files.
	* configure: Rebuild.

	PR fortran/32049
	* Makefile.def: Add libquadmath; build it with language=fortran.
	* configure.ac: Add libquadmath.
	* Makefile.tpl: Handle multiple libs in check-[+language+].
	* Makefile.in: Regenerate.
	* configure: Regenerate.

	* configure.ac: Fix spelling in option names.
	* configure: Regenerated.

	PR bootstrap/39622
	* configure.ac (FLAGS_FOR_TARGET): Add include-fixed path.
	* configure: Regenerated.

	* config/cloog.m4: Add -enable-cloog-backend=(isl|ppl|ppl-legacy) to
	define the cloog backend to use. Furthermore, only pass the ppllibs to
	the configure checks, if necessary.
	* configure: Regenerate.

	* config/cloog.m4: Use CLooG predefined macro to check for CLooG PPL.
	* configure: regenerate

	* config/cloog.m4: Fix typo.  verison -> version.
	* configure: Regenerate.

	* config/cloog.m4: Pass ppl libraries to the CLooG version check.
	* configure: Regenerate.

	* configure.ac: Support official CLooG.org versions.
	* configure: Regenerate.
	* config/cloog.m4: New.

	* configure.ac (*-*-darwin*): Use mh-darwin for all Darwin variants.
	* configure: Regenerate.

config/:
	* cloog.m4 (CLOOG_INIT_FLAGS): Fix spelling in option names.

	* bootstrap-lto: Use -flto.

	* mh-darwin: Renamed from mh-ppc-darwin.

4 files changed, 301 insertions, 2 deletions

diff --git a/config/ChangeLog b/config/ChangeLog
index 06955a2f9a5..e3d62489e9a 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,15 @@
+2010-11-15  Andreas Schwab  <schwab@redhat.com>
+
+	* cloog.m4 (CLOOG_INIT_FLAGS): Fix spelling in option names.
+
+2010-11-11  Jan Hubicka  <jh@suse.cz>
+
+	* bootstrap-lto: Use -flto.
+
+2010-11-04  Iain Sandoe  <iains@gcc.gnu.org>
+
+	* mh-darwin: Renamed from mh-ppc-darwin.
+
 2010-06-27  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	* po.m4 (AM_PO_SUBDIRS): Fix unportable shell quoting.
diff --git a/config/bootstrap-lto.mk b/config/bootstrap-lto.mk
index 785d15f81c2..b30ac1a5fa3 100644
--- a/config/bootstrap-lto.mk
+++ b/config/bootstrap-lto.mk
@@ -1,8 +1,8 @@
 # This option enables LTO for stage2 and stage3.  It requires lto to
 # be enabled for stage1 with --enable-stage1-languages.
 
-STAGE2_CFLAGS += -fwhopr=jobserver -fuse-linker-plugin -frandom-seed=1
-STAGE3_CFLAGS += -fwhopr=jobserver -fuse-linker-plugin -frandom-seed=1
+STAGE2_CFLAGS += -flto=jobserver -fuse-linker-plugin -frandom-seed=1
+STAGE3_CFLAGS += -flto=jobserver -fuse-linker-plugin -frandom-seed=1
 
 # Ada fails to build with LTO, turn it off for now.
 BOOT_ADAFLAGS += -fno-lto
diff --git a/config/cloog.m4 b/config/cloog.m4
new file mode 100644
index 00000000000..96ebd4d134b
--- /dev/null
+++ b/config/cloog.m4
@@ -0,0 +1,287 @@
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 3, or (at your option) any later
+# version.
+#
+# GCC is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+#
+# Contributed by Andreas Simbuerger <simbuerg@fim.uni-passau.de>
+
+# CLOOG_INIT_FLAGS ()
+# -------------------------
+# Provide configure switches for CLooG support.
+# Initialize clooglibs/clooginc according to the user input.
+AC_DEFUN([CLOOG_INIT_FLAGS],
+[
+  AC_ARG_WITH(cloog,
+    [AS_HELP_STRING(
+      [--with-cloog=PATH],
+      [Specify prefix directory for the installed CLooG-PPL package.
+       Equivalent to --with-cloog-include=PATH/include
+       plus --with-cloog-lib=PATH/lib])])
+  AC_ARG_WITH([cloog-include],
+    [AS_HELP_STRING(
+      [--with-cloog-include=PATH],
+      [Specify directory for installed CLooG include files])])
+  AC_ARG_WITH([cloog-lib],
+    [AS_HELP_STRING(
+      [--with-cloog-lib=PATH],
+      [Specify the directory for the installed CLooG library])])
+
+  AC_ARG_ENABLE(cloog-backend,
+    [  --enable-cloog-backend[=backend]
+				isl: The cloog.org isl backend
+				ppl-legacy: The legacy ppl backend - default
+				ppl: The cloog.org ppl backend],
+    [ if   test "x${enableval}" = "xisl"; then
+	cloog_backend=isl
+      elif test "x${enableval}" = "xppl"; then
+	cloog_backend=ppl
+      else
+	cloog_backend=ppl-legacy
+      fi], cloog_backend=ppl-legacy)
+  AC_ARG_ENABLE(cloog-version-check,
+    [AS_HELP_STRING(
+      [--disable-cloog-version-check],
+      [disable check for CLooG version])],
+    ENABLE_CLOOG_CHECK=$enableval,
+    ENABLE_CLOOG_CHECK=yes)
+  
+  # Initialize clooglibs and clooginc.
+  case $with_cloog in
+    no)
+      clooglibs=
+      clooginc=
+      ;;
+    "" | yes)
+      ;;
+    *)
+      clooglibs="-L$with_cloog/lib"
+      clooginc="-I$with_cloog/include"
+      ;;
+  esac
+  if test "x${with_cloog_include}" != x ; then
+    clooginc="-I$with_cloog_include"
+  fi
+  if test "x${with_cloog_lib}" != x; then
+    clooglibs="-L$with_cloog_lib"
+  fi
+
+  dnl Flags needed for CLOOG
+  AC_SUBST(clooglibs)
+  AC_SUBST(clooginc)
+]
+)
+
+# CLOOG_REQUESTED (ACTION-IF-REQUESTED, ACTION-IF-NOT)
+# ----------------------------------------------------
+# Provide actions for failed CLooG detection.
+AC_DEFUN([CLOOG_REQUESTED],
+[
+  AC_REQUIRE([CLOOG_INIT_FLAGS])
+
+  if test "x${with_cloog}" != x \
+    || test "x${with_cloog_include}" != x \
+    || test "x${with_cloog_lib}" != x ; then
+    $1
+  else
+    $2
+  fi
+]
+)
+
+# _CLOOG_ORG_PROG_ISL ()
+# ------------------
+# Helper for detecting CLooG.org's ISL backend.
+m4_define([_CLOOG_ORG_PROG_ISL],[AC_LANG_PROGRAM(
+  [#include "cloog/cloog.h" ],
+  [cloog_version ()])])
+
+# _CLOOG_ORG_PROG_PPL ()
+# ------------------
+# Helper for detecting CLooG.org's PPL backend.
+m4_define([_CLOOG_ORG_PROG_PPL],[AC_LANG_PROGRAM(
+  [#include "cloog/cloog.h"
+   #include "cloog/ppl/cloog.h"],
+  [cloog_version ()])])
+
+# _CLOOG_PPL_LEGACY_PROG ()
+# -------------------------
+# Helper for detecting CLooG-Legacy (CLooG-PPL).
+m4_define([_CLOOG_PPL_LEGACY_PROG], [AC_LANG_PROGRAM(
+  [#include "cloog/cloog.h"],
+  [#ifndef CLOOG_PPL_BACKEND
+    choke me
+   #endif ])])
+
+# CLOOG_FIND_FLAGS ()
+# ------------------
+# Detect the used CLooG-backend and set clooginc/clooglibs/cloog_org.
+# Only look for the CLooG backend type specified in --enable-cloog-backend
+AC_DEFUN([CLOOG_FIND_FLAGS],
+[
+  AC_REQUIRE([CLOOG_INIT_FLAGS])
+
+  _cloog_saved_CFLAGS=$CFLAGS
+  _cloog_saved_CPPFLAGS=$CPPFLAGS
+  _cloog_saved_LDFLAGS=$LDFLAGS
+  _cloog_saved_LIBS=$LIBS
+
+  _cloogorginc="-DCLOOG_INT_GMP -DCLOOG_ORG"
+ 
+  dnl clooglibs & clooginc may have been initialized by CLOOG_INIT_FLAGS.
+  CFLAGS="${CFLAGS} ${clooginc} ${gmpinc}"
+  CPPFLAGS="${CPPFLAGS} ${_cloogorginc}"
+  LDFLAGS="${LDFLAGS} ${clooglibs}"
+
+  case $cloog_backend in
+    "ppl-legacy")
+    CFLAGS="${CFLAGS} ${pplinc}"
+    LDFLAGS="${LDFLAGS} ${ppllibs}"
+    AC_CACHE_CHECK([for installed CLooG PPL Legacy], [gcc_cv_cloog_type],
+      [LIBS="-lcloog ${_cloog_saved_LIBS}"
+      AC_LINK_IFELSE([_CLOOG_PPL_LEGACY_PROG], [gcc_cv_cloog_type="PPL Legacy"],
+		     [gcc_cv_cloog_type=no])])
+    ;;
+    "isl")
+    AC_CACHE_CHECK([for installed CLooG ISL], [gcc_cv_cloog_type],
+      [LIBS="-lcloog-isl ${_cloog_saved_LIBS}"
+      AC_LINK_IFELSE([_CLOOG_ORG_PROG_ISL], [gcc_cv_cloog_type="ISL"],
+		     [gcc_cv_cloog_type=no])])
+    ;;
+    "ppl")
+    CFLAGS="${CFLAGS} ${pplinc}"
+    LDFLAGS="${LDFLAGS} ${ppllibs}"
+    AC_CACHE_CHECK([for installed CLooG PPL], [gcc_cv_cloog_type],
+      [LIBS="-lcloog-ppl ${_cloog_saved_LIBS}"
+      AC_LINK_IFELSE([_CLOOG_ORG_PROG_PPL], [gcc_cv_cloog_type="PPL"],
+		     [gcc_cv_cloog_type=no])])
+    ;;
+    *)
+      gcc_cv_cloog_type=""
+  esac
+
+  case $gcc_cv_cloog_type in
+    "PPL Legacy")
+      clooginc="${clooginc}"
+      clooglibs="${clooglibs} -lcloog"
+      cloog_org=no
+      ;;
+    "ISL")
+      clooginc="${clooginc} ${_cloogorginc}"
+      clooglibs="${clooglibs} -lcloog-isl"
+      cloog_org=yes
+      ;;
+    "PPL")
+      clooginc="${clooginc} ${_cloogorginc}"
+      clooglibs="${clooglibs} -lcloog-ppl"
+      cloog_org=yes
+      ;;
+    *)
+      clooglibs=
+      clooginc=
+      cloog_org=
+      ;;
+  esac
+
+  LIBS=$_cloog_saved_LIBS
+  CFLAGS=$_cloog_saved_CFLAGS
+  CPPFLAGS=$_cloog_saved_CPPFLAGS
+  LDFLAGS=$_cloog_saved_LDFLAGS
+]
+)
+
+# _CLOOG_CHECK_CT_PROG(MAJOR, MINOR, REVISION)
+# --------------------------------------------
+# Helper for verifying CLooG's compile time version.
+m4_define([_CLOOG_CHECK_CT_PROG],[AC_LANG_PROGRAM(
+  [#include "cloog/cloog.h"],
+  [#if CLOOG_VERSION_MAJOR != $1 \
+    || CLOOG_VERSION_MINOR != $2 \
+    || CLOOG_VERSION_REVISION < $3
+    choke me
+   #endif])])
+
+# _CLOOG_CHECK_RT_PROG ()
+# -----------------------
+# Helper for verifying that CLooG's compile time version
+# matches the run time version.
+m4_define([_CLOOG_CHECK_RT_PROG],[AC_LANG_PROGRAM(
+  [#include "cloog/cloog.h"],
+  [if ((cloog_version_major () != CLOOG_VERSION_MAJOR)
+    && (cloog_version_minor () != CLOOG_VERSION_MINOR)
+    && (cloog_version_revision () != CLOOG_VERSION_REVISION))
+    {
+      return 1;
+    }])])
+
+# CLOOG_CHECK_VERSION CLOOG_CHECK_VERSION (MAJOR, MINOR, REVISION)
+# ----------------------------------------------------------------
+# Test the found CLooG to be exact of version MAJOR.MINOR and at least
+# REVISION.
+# If we're using the old CLooG-PPL (Legacy), the old version check will
+# be executed (Ignores the provided version information).
+AC_DEFUN([CLOOG_CHECK_VERSION],
+[
+  AC_REQUIRE([CLOOG_FIND_FLAGS])
+
+  if test "${ENABLE_CLOOG_CHECK}" = yes ; then
+    _cloog_saved_CFLAGS=$CFLAGS
+    _cloog_saved_LDFLAGS=$LDFLAGS
+
+    CFLAGS="${_cloog_saved_CFLAGS} ${clooginc} ${pplinc} ${gmpinc}"
+    LDFLAGS="${_cloog_saved_LDFLAGS} ${clooglibs} ${ppllibs}"
+
+    if test "${cloog_org}" = yes ; then
+      AC_CACHE_CHECK([for version $1.$2.$3 of CLooG],
+        [gcc_cv_cloog_ct_0_14_0],
+        [AC_COMPILE_IFELSE([_CLOOG_CHECK_CT_PROG($1,$2,$3)],
+          [gcc_cv_cloog_ct_0_14_0=yes],
+          [gcc_cv_cloog_ct_0_14_0=no])])
+    elif test "${cloog_org}" = no ; then
+      AC_CACHE_CHECK([for version 0.15.5 (or later revision) of CLooG],
+        [gcc_cv_cloog_ct_0_15_5],
+        [AC_COMPILE_IFELSE([_CLOOG_CHECK_CT_PROG(0,15,5)],
+          [AC_COMPILE_IFELSE([_CLOOG_CHECK_CT_PROG(0,15,9)],
+           [gcc_cv_cloog_ct_0_15_5=yes],
+            [gcc_cv_cloog_ct_0_15_5="buggy but acceptable"])],
+          [gcc_cv_cloog_ct_0_15_5=no])])
+    fi
+
+    CFLAGS=$_cloog_saved_CFLAGS
+    LDFLAGS=$_cloog_saved_LDFLAGS
+  fi
+]
+)
+
+# CLOOG_IF_FAILED (ACTION-IF-FAILED)
+# ----------------------------------
+# Executes ACTION-IF-FAILED, if GRAPHITE was requested and
+# the checks failed.
+AC_DEFUN([CLOOG_IF_FAILED],
+[
+  CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
+  
+  if test "${gcc_cv_cloog_ct_0_14_0}" = no \
+    || test "${gcc_cv_cloog_rt_0_14_0}" = no \
+    || test "${gcc_cv_cloog_ct_0_15_5}" = no; then
+    clooglibs=
+    clooginc=
+  fi
+
+  if test "${graphite_requested}" = yes \
+    && test "x${clooglibs}" = x \
+    && test "x${clooginc}" = x ; then
+    $1
+  fi
+]
+)
diff --git a/config/mh-ppc-darwin b/config/mh-darwin
index 66f68b664a9..66f68b664a9 100644
--- a/config/mh-ppc-darwin
+++ b/config/mh-darwin