Imported from /home/lorry/working-area/delta_gcc-tarball/gcc-4.9.2.tar.bz2.gcc-4.9.2

19 files changed, 494 insertions, 189 deletions

diff --git a/config/ChangeLog b/config/ChangeLog
index cc4d6cb2e3..e569d7aed4 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,18 +1,170 @@
-2013-04-11  Release Manager
+2014-10-30  Release Manager
 
-	* GCC 4.7.3 released.
+	* GCC 4.9.2 released.
 
-2012-09-20  Release Manager
+2014-07-26  Uros Bizjak  <ubizjak@gmail.com>
 
-	* GCC 4.7.2 released.
+	PR target/47230
+	* mh-alpha-linux: New file.
 
-2012-06-14  Release Manager
+2014-07-16  Release Manager
 
-	* GCC 4.7.1 released.
+	* GCC 4.9.1 released.
 
-2012-03-22  Release Manager
+2014-04-22  Release Manager
 
-	* GCC 4.7.0 released.
+	* GCC 4.9.0 released.
+
+2013-11-29  Marek Polacek  <polacek@redhat.com>
+
+	* bootstrap-ubsan.mk (POSTSTAGE1_LDFLAGS): Remove -lpthread -ldl.
+	Add -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/.
+
+2013-11-29  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* bootstrap-asan.mk (POSTSTAGE1_LDFLAGS): Add
+	-B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/.
+
+2013-11-19  Marek Polacek  <polacek@redhat.com>
+
+	* bootstrap-ubsan.mk (POSTSTAGE1_LDFLAGS): Add -ldl.
+
+2013-11-18  Jan Hubicka  <jh@suse.cz>
+
+	* bootstrap-lto.mk: Use -ffat-lto-objects.
+
+2013-11-15  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* picflag.m4 (m68k-*-*): Use default PIC flag.
+
+2013-09-29  Iain Sandoe  <iain@codesourcery.com>
+
+	* mh-darwin (BOOT_CFLAGS): Only add -mdynamic-no-pic for m32 hosts.
+	(STAGE1_CFLAGS, STAGE1_LDFLAGS): New.
+	Fix over-length lines and amend comments.
+
+2013-08-30  Marek Polacek  <polacek@redhat.com>
+
+	* bootstrap-ubsan.mk: New.
+
+2013-03-27  Kai Tietz  <ktietz@redhat.com>
+
+	* dfp.m4: Add support for cygwin x64 target.
+	* picflag.m4: Likewise.
+
+2013-02-25  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* bootstrap-asan.mk (POSTSTAGE1_LDFLAGS): Add
+	-B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/asan/.
+
+2013-01-23  Shenghou Ma  <minux.ma@gmail.com>
+
+	* isl.m4: don't echo $CFLAGS for ISL_CHECK_VERSION.
+
+2013-01-15  Richard Biener  <rguenther@suse.de>
+
+	PR other/55973
+	* isl.m4 (ISL_INIT_FLAGS): Warn about disabled version check
+	for in-tree build.
+	(ISL_CHECK_VERSION): Do not use AC_CACHE_CHECK.
+	* cloog.m4 (CLOOG_INIT_FLAGS): Disable version check for
+	in-tree build and warn about that.
+	(CLOOG_CHECK_VERSION): Do not use AC_CACHE_CHECK.
+
+2013-01-07  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* libstdc++-raw-cxx.m4 (GCC_LIBSTDCXX_RAW_CXX_FLAGS): Remove
+	"-I" from LIBSTDCXX_RAW_CXX_LDFLAGS.
+
+2012-12-12  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* libstdc++-raw-cxx.m4 (GCC_LIBSTDCXX_RAW_CXX_FLAGS): Also
+	AC_SUBST LIBSTDCXX_RAW_CXX_LDFLAGS.
+
+2012-12-11  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR sanitizer/55533
+	* libstdc++-raw-cxx.m4: New file.
+
+2012-11-28  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* bootstrap-asan.mk: New file.
+
+2012-11-04  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* dfp.m4 (enable_decimal_float): Enable for i?86*-*-gnu*.
+
+2012-10-15  Pavel Chupin  <pavel.v.chupin@intel.com>
+
+	* gthr.m4: New. Define GCC_AC_THREAD_HEADER.
+
+2012-09-19  Steve Ellcey  <sellcey@mips.com>
+
+	* mt-sde: Change -mcode-xonly to -mcode-readable=pcrel.
+
+2012-09-03  Richard Guenther  <rguenther@suse.de>
+
+	PR bootstrap/54138
+	* config/cloog.m4: Adjust for toplevel reorg.
+	* config/isl.m4: Adjust.
+
+2012-08-26  Art Haas <ahaas@impactweather.com>
+
+	* cloog.m4 (CLOOG_INIT_FLAGS): Use = instead of == in test.
+
+2012-07-04  Tristan Gingold  <gingold@adacore.com>
+
+	* isl.m4 (ISL_CHECK_VERSION): Set to yes if cross-compiling.
+	Fix comments.
+
+2012-07-03  Richard Guenther  <rguenther@suse.de>
+
+	* cloog.m4: Remove debugging print.
+
+2012-07-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* isl.m4 (ISL_CHECK_VERSION): Add -lisl to LIBS, not LDFLAGS.
+
+2012-07-02  Richard Guenther  <rguenther@suse.de>
+
+	* isl.m4 (_ISL_CHECK_CT_PROG): Omit main function header/footer.
+	Fix version test. 
+
+2012-07-02  Richard Guenther  <rguenther@suse.de>
+	Michael Matz  <matz@suse.de>
+	Tobias Grosser <tobias@grosser.es>
+	Sebastian Pop <sebpop@gmail.com>
+
+	* cloog.m4: Set up to work against ISL only.
+	* isl.m4: New file.
+
+2012-05-29  Joseph Myers  <joseph@codesourcery.com>
+
+	* mt-sde: Fix typos.
+	* stdint.m4: Fix typos.
+	* tcl.m4: Fix typos.
+
+2012-05-03  Olivier Hainque  <hainque@adacore.com>
+
+	* mh-ppc-aix (LDFLAGS): Quote $(CC).
+
+2012-04-03  Tristan Gingold  <gingold@adacore.com>
+
+	* mmap.m4: Use *vms* instead of vms*.
+
+2012-04-02  Tristan Gingold  <gingold@adacore.com>
+
+	* math.m4 (GCC_CHECK_MATH_FUNC): Remove if-present
+	argument.  Define the variable.
+
+2012-03-26  Tristan Gingold  <gingold@adacore.com>
+
+	* math.m4: New file.
+
+2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* weakref.m4 (GCC_CHECK_ELF_STYLE_WEAKREF): Remove
+	alpha*-dec-osf*.
 
 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
 
diff --git a/config/bootstrap-asan.mk b/config/bootstrap-asan.mk
new file mode 100644
index 0000000000..fbef02125d
--- /dev/null
+++ b/config/bootstrap-asan.mk
@@ -0,0 +1,8 @@
+# This option enables -fsanitize=address for stage2 and stage3.
+
+STAGE2_CFLAGS += -fsanitize=address
+STAGE3_CFLAGS += -fsanitize=address
+POSTSTAGE1_LDFLAGS += -fsanitize=address -static-libasan \
+		      -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ \
+		      -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/asan/ \
+		      -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/asan/.libs
diff --git a/config/bootstrap-lto.mk b/config/bootstrap-lto.mk
index bbd3515eaa..27bad1529b 100644
--- a/config/bootstrap-lto.mk
+++ b/config/bootstrap-lto.mk
@@ -1,5 +1,7 @@
 # This option enables LTO for stage2 and stage3.
+# FIXME: Our build system is not yet able to use gcc-ar wrapper, so we need
+# to go with -ffat-lto-objects. 
 
-STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1
-STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1
+STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
+STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
 STAGEprofile_CFLAGS += -fno-lto
diff --git a/config/bootstrap-ubsan.mk b/config/bootstrap-ubsan.mk
new file mode 100644
index 0000000000..d2615e8f80
--- /dev/null
+++ b/config/bootstrap-ubsan.mk
@@ -0,0 +1,8 @@
+# This option enables -fsanitize=undefined for stage2 and stage3.
+
+STAGE2_CFLAGS += -fsanitize=undefined
+STAGE3_CFLAGS += -fsanitize=undefined
+POSTSTAGE1_LDFLAGS += -fsanitize=undefined -static-libubsan \
+		      -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ \
+		      -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ubsan/ \
+		      -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ubsan/.libs
diff --git a/config/cloog.m4 b/config/cloog.m4
index e95b98d314..670cd652fc 100644
--- a/config/cloog.m4
+++ b/config/cloog.m4
@@ -22,12 +22,6 @@
 # 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],
@@ -37,17 +31,6 @@ AC_DEFUN([CLOOG_INIT_FLAGS],
       [--with-cloog-lib=PATH],
       [Specify the directory for the installed CLooG library])])
 
-  AC_ARG_ENABLE(cloog-backend,
-    [AS_HELP_STRING(
-      [--enable-cloog-backend[[=BACKEND]]],
-      [set the CLooG BACKEND used to either isl, ppl or ppl-legacy (default)])],
-    [ 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],
@@ -74,10 +57,19 @@ AC_DEFUN([CLOOG_INIT_FLAGS],
   if test "x${with_cloog_lib}" != x; then
     clooglibs="-L$with_cloog_lib"
   fi
+  dnl If no --with-cloog flag was specified and there is in-tree CLooG
+  dnl source, set up flags to use that and skip any version tests
+  dnl as we cannot run them reliably before building CLooG
+  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
+    AC_MSG_WARN([using in-tree CLooG, disabling version check])
+  fi
 
-  dnl Flags needed for CLOOG
-  AC_SUBST(clooglibs)
-  AC_SUBST(clooginc)
+  clooginc="-DCLOOG_INT_GMP ${clooginc}"
+  clooglibs="${clooglibs} -lcloog-isl ${isllibs} -lisl"
 ]
 )
 
@@ -100,163 +92,37 @@ AC_DEFUN([CLOOG_REQUESTED],
 ]
 )
 
-# _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 -lisl"
-      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"],
+  [#include "cloog/version.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])
+  AC_REQUIRE([CLOOG_INIT_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} ${ppllibs}"
+    CFLAGS="${_cloog_saved_CFLAGS} ${clooginc} ${islinc} ${gmpinc}"
+    LDFLAGS="${_cloog_saved_LDFLAGS} ${clooglibs} ${isllibs} ${gmplib}"
 
-    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
+    AC_MSG_CHECKING([for version $1.$2.$3 of CLooG])
+    AC_COMPILE_IFELSE([_CLOOG_CHECK_CT_PROG($1,$2,$3)],
+	[gcc_cv_cloog=yes],
+	[gcc_cv_cloog=no])
+    AC_MSG_RESULT([$gcc_cv_cloog])
 
     CFLAGS=$_cloog_saved_CFLAGS
     LDFLAGS=$_cloog_saved_LDFLAGS
@@ -272,9 +138,7 @@ 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 "${gcc_cv_cloog_ct_0_15_5}" = no; then
+  if test "${gcc_cv_cloog}" = no ; then
     clooglibs=
     clooginc=
   fi
diff --git a/config/dfp.m4 b/config/dfp.m4
index cc778b19bb..48683f0f97 100644
--- a/config/dfp.m4
+++ b/config/dfp.m4
@@ -21,8 +21,9 @@ Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
 [
   case $1 in
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
+    i?86*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
-    i?86*-*-cygwin*)
+    i?86*-*-cygwin* | x86_64*-*-cygwin*)
       enable_decimal_float=yes
       ;;
     *)
diff --git a/config/gthr.m4 b/config/gthr.m4
new file mode 100644
index 0000000000..7b29f1f332
--- /dev/null
+++ b/config/gthr.m4
@@ -0,0 +1,27 @@
+dnl Copyright (C) 2012 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License.  As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+
+dnl Define header location by thread model
+
+dnl usage: GCC_AC_THREAD_HEADER([thread_model])
+AC_DEFUN([GCC_AC_THREAD_HEADER],
+[
+case $1 in
+    aix)	thread_header=config/rs6000/gthr-aix.h ;;
+    dce)	thread_header=config/pa/gthr-dce.h ;;
+    lynx)	thread_header=config/gthr-lynx.h ;;
+    mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
+    posix)	thread_header=gthr-posix.h ;;
+    rtems)	thread_header=config/gthr-rtems.h ;;
+    single)	thread_header=gthr-single.h ;;
+    tpf)	thread_header=config/s390/gthr-tpf.h ;;
+    vxworks)	thread_header=config/gthr-vxworks.h ;;
+    win32)	thread_header=config/i386/gthr-win32.h ;;
+esac
+AC_SUBST(thread_header)
+])
+
diff --git a/config/isl.m4 b/config/isl.m4
new file mode 100644
index 0000000000..f45854d222
--- /dev/null
+++ b/config/isl.m4
@@ -0,0 +1,151 @@
+# 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 Richard Guenther <rguenther@suse.de>
+# Based on cloog.m4
+
+# ISL_INIT_FLAGS ()
+# -------------------------
+# Provide configure switches for ISL support.
+# Initialize isllibs/islinc according to the user input.
+AC_DEFUN([ISL_INIT_FLAGS],
+[
+  AC_ARG_WITH([isl-include],
+    [AS_HELP_STRING(
+      [--with-isl-include=PATH],
+      [Specify directory for installed ISL include files])])
+  AC_ARG_WITH([isl-lib],
+    [AS_HELP_STRING(
+      [--with-isl-lib=PATH],
+      [Specify the directory for the installed ISL library])])
+
+  AC_ARG_ENABLE(isl-version-check,
+    [AS_HELP_STRING(
+      [--disable-isl-version-check],
+      [disable check for ISL version])],
+    ENABLE_ISL_CHECK=$enableval,
+    ENABLE_ISL_CHECK=yes)
+  
+  # Initialize isllibs and islinc.
+  case $with_isl in
+    no)
+      isllibs=
+      islinc=
+      ;;
+    "" | yes)
+      ;;
+    *)
+      isllibs="-L$with_isl/lib"
+      islinc="-I$with_isl/include"
+      ;;
+  esac
+  if test "x${with_isl_include}" != x ; then
+    islinc="-I$with_isl_include"
+  fi
+  if test "x${with_isl_lib}" != x; then
+    isllibs="-L$with_isl_lib"
+  fi
+  dnl If no --with-isl flag was specified and there is in-tree ISL
+  dnl source, set up flags to use that and skip any version tests
+  dnl as we cannot run them before building ISL.
+  if test "x${islinc}" = x && test "x${isllibs}" = x \
+     && test -d ${srcdir}/isl; then
+    isllibs='-L$$r/$(HOST_SUBDIR)/isl/'"$lt_cv_objdir"' '
+    islinc='-I$$r/$(HOST_SUBDIR)/isl/include -I$$s/isl/include'
+    ENABLE_ISL_CHECK=no
+    AC_MSG_WARN([using in-tree ISL, disabling version check])
+  fi
+]
+)
+
+# ISL_REQUESTED (ACTION-IF-REQUESTED, ACTION-IF-NOT)
+# ----------------------------------------------------
+# Provide actions for failed ISL detection.
+AC_DEFUN([ISL_REQUESTED],
+[
+  AC_REQUIRE([ISL_INIT_FLAGS])
+
+  if test "x${with_isl}" = xno; then
+    $2
+  elif test "x${with_isl}" != x \
+    || test "x${with_isl_include}" != x \
+    || test "x${with_isl_lib}" != x ; then
+    $1
+  else
+    $2
+  fi
+]
+)
+
+# _ISL_CHECK_CT_PROG(MAJOR, MINOR)
+# --------------------------------------------
+# Helper for verifying ISL compile time version.
+m4_define([_ISL_CHECK_CT_PROG],[AC_LANG_PROGRAM(
+  [#include <isl/version.h>
+   #include <string.h>],
+  [if (strncmp (isl_version (), "isl-$1.$2", strlen ("isl-$1.$2")) != 0)
+     return 1;
+   ])])
+
+# ISL_CHECK_VERSION ISL_CHECK_VERSION (MAJOR, MINOR)
+# ----------------------------------------------------------------
+# Test the found ISL to be exact of version MAJOR.MINOR and at least
+# REVISION.
+AC_DEFUN([ISL_CHECK_VERSION],
+[
+  if test "${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"
+
+    AC_MSG_CHECKING([for version $1.$2 of ISL])
+    AC_RUN_IFELSE([_ISL_CHECK_CT_PROG($1,$2)],
+	[gcc_cv_isl=yes],
+	[gcc_cv_isl=no],
+	[gcc_cv_isl=yes])
+    AC_MSG_RESULT([$gcc_cv_isl])
+
+    CFLAGS=$_isl_saved_CFLAGS
+    LDFLAGS=$_isl_saved_LDFLAGS
+    LIBS=$_isl_saved_LIBS
+  fi
+]
+)
+
+# ISL_IF_FAILED (ACTION-IF-FAILED)
+# ----------------------------------
+# Executes ACTION-IF-FAILED, if GRAPHITE was requested and
+# the checks failed.
+AC_DEFUN([ISL_IF_FAILED],
+[
+  ISL_REQUESTED([graphite_requested=yes], [graphite_requested=no])
+  
+  if test "${gcc_cv_isl}" = no ; then
+    isllibs=
+    islinc=
+  fi
+
+  if test "${graphite_requested}" = yes \
+    && test "x${isllibs}" = x \
+    && test "x${islinc}" = x ; then
+    $1
+  fi
+]
+)
diff --git a/config/libstdc++-raw-cxx.m4 b/config/libstdc++-raw-cxx.m4
new file mode 100644
index 0000000000..aafa50950e
--- /dev/null
+++ b/config/libstdc++-raw-cxx.m4
@@ -0,0 +1,30 @@
+# 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/>.
+
+# Define flags, LIBSTDCXX_RAW_CXX_CXXFLAGS and # LIBSTDCXX_RAW_CXX_LDFLAGS,
+# for libstdc++-v3 header files to compile and link libraries in C++ with
+# raw_cxx=true.
+AC_DEFUN([GCC_LIBSTDCXX_RAW_CXX_FLAGS], [
+  AC_REQUIRE([ACX_NONCANONICAL_TARGET])
+  LIBSTDCXX_RAW_CXX_CXXFLAGS="\
+    -I\$(top_builddir)/../libstdc++-v3/include \
+    -I\$(top_builddir)/../libstdc++-v3/include/\$(target_noncanonical) \
+    -I\$(top_srcdir)/../libstdc++-v3/libsupc++"
+  LIBSTDCXX_RAW_CXX_LDFLAGS="\
+    \$(top_builddir)/../libstdc++-v3/src/libstdc++.la"
+  AC_SUBST(LIBSTDCXX_RAW_CXX_CXXFLAGS)
+  AC_SUBST(LIBSTDCXX_RAW_CXX_LDFLAGS)
+])
diff --git a/config/math.m4 b/config/math.m4
new file mode 100644
index 0000000000..23835f230c
--- /dev/null
+++ b/config/math.m4
@@ -0,0 +1,50 @@
+dnl GCC_CHECK_LIBM
+dnl
+dnl Check whether -lm is available.  This is a pre-requisite for
+dnl GCC_CHECK_MATH_FUNC so that it will link with -lm.
+AC_DEFUN([GCC_CHECK_LIBM],
+[AC_CHECK_LIB([m],[sin])])
+
+dnl GCC_CHECK_MATH_HEADERS
+dnl
+dnl Check for math.h and complex.h.  This is a pre-requisite for
+dnl GCC_CHECK_MATH_FUNC so that it includes the right headers.
+dnl (Some systems, such as AIX or OpenVMS may define macro for math
+dnl  functions).
+AC_DEFUN([GCC_CHECK_MATH_HEADERS],
+[AC_CHECK_HEADERS_ONCE(math.h complex.h)])
+
+dnl GCC_CHECK_MATH_FUNC([name])
+dnl
+dnl Check whether math function NAME is available on the system (by compiling
+dnl and linking a C program) and run define HAVE_name on success.
+dnl
+dnl Note that OpenVMS system insists on including complex.h before math.h
+AC_DEFUN([GCC_CHECK_MATH_FUNC],
+[
+  AC_REQUIRE([GCC_CHECK_LIBM])
+  AC_REQUIRE([GCC_CHECK_MATH_HEADERS])
+  AC_CACHE_CHECK([for $1], [gcc_cv_math_func_$1],
+		 [AC_LINK_IFELSE([
+#ifdef HAVE_COMPLEX_H
+#include <complex.h>
+#endif
+#ifdef HAVE_MATH_H
+#include <math.h>
+#endif
+
+int (*ptr)() = (int (*)())$1;
+
+int
+main ()
+{
+  return 0;
+}
+],
+[gcc_cv_math_func_$1=yes],
+[gcc_cv_math_func_$1=no])])
+  if test $gcc_cv_math_func_$1 = yes; then
+    AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1),[1],
+                       [Define to 1 if you have the `$1' function.])
+  fi
+])
diff --git a/config/mh-alpha-linux b/config/mh-alpha-linux
new file mode 100644
index 0000000000..9a9244baaa
--- /dev/null
+++ b/config/mh-alpha-linux
@@ -0,0 +1,3 @@
+# Prevent GPREL16 relocation truncation
+LDFLAGS += -Wl,--no-relax
+BOOT_LDFLAGS += -Wl,--no-relax
diff --git a/config/mh-darwin b/config/mh-darwin
index 19bf26568b..a039f20141 100644
--- a/config/mh-darwin
+++ b/config/mh-darwin
@@ -1,7 +1,18 @@
 # The -mdynamic-no-pic ensures that the compiler executable is built without
 # position-independent-code -- the usual default on Darwin. This fix speeds
 # compiles by 3-5%.
-BOOT_CFLAGS += -mdynamic-no-pic
+BOOT_CFLAGS += \
+`case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \
+                 echo -mdynamic-no-pic ;; esac;`
 
-# Ensure we don't try and use -pie, as it is incompatible with pch.
-BOOT_LDFLAGS += `case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`
+# ld on Darwin versions >= 10.7 defaults to PIE executables. Disable this for
+# gcc components, since it is incompatible with our pch implementation.
+BOOT_LDFLAGS += \
+`case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`
+
+# Similarly, for cross-compilation.
+STAGE1_CFLAGS += \
+`case ${host} in i?86-*-darwin* | powerpc-*-darwin*)\
+                 echo -mdynamic-no-pic ;; esac;`
+STAGE1_LDFLAGS += \
+`case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`
diff --git a/config/mh-ppc-aix b/config/mh-ppc-aix
index 4a97d81729..a866f7fef8 100644
--- a/config/mh-ppc-aix
+++ b/config/mh-ppc-aix
@@ -5,4 +5,4 @@
 # don't do it any more.
 BOOT_ADAFLAGS = -gnatapg
 BOOT_LDFLAGS = -Wl,-bbigtoc
-LDFLAGS = `case $(CC) in *gcc*) echo -Wl,-bbigtoc ;; esac;`
+LDFLAGS = `case '$(CC)' in *gcc*) echo -Wl,-bbigtoc ;; esac;`
diff --git a/config/mmap.m4 b/config/mmap.m4
index 39d79afc74..fba0d9d365 100644
--- a/config/mmap.m4
+++ b/config/mmap.m4
@@ -24,7 +24,7 @@ else
    # read() to the same fd.  The only system known to have a problem here
    # is VMS, where text files have record structure.
    case "$host_os" in
-     vms* | ultrix*) 
+     *vms* | ultrix*)
         gcc_cv_func_mmap_file=no ;;
      *)
         gcc_cv_func_mmap_file=yes;;
@@ -42,7 +42,7 @@ else
    # Systems known to be in this category are Windows (all variants),
    # VMS, and Darwin.
    case "$host_os" in
-     vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
+     *vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
         gcc_cv_func_mmap_dev_zero=no ;;
      *)
         gcc_cv_func_mmap_dev_zero=yes;;
@@ -74,7 +74,7 @@ else
    # above for use of /dev/zero.
    # Systems known to be in this category are Windows, VMS, and SCO Unix.
    case "$host_os" in
-     vms* | cygwin* | pe | mingw* | sco* | udk* )
+     *vms* | cygwin* | pe | mingw* | sco* | udk* )
         gcc_cv_func_mmap_anon=no ;;
      *)
         gcc_cv_func_mmap_anon=yes;;
diff --git a/config/mt-sde b/config/mt-sde
index cb204203db..a3fc1e1d73 100644
--- a/config/mt-sde
+++ b/config/mt-sde
@@ -1,10 +1,10 @@
 # We default to building libraries optimised for size.  We use
 # -minterlink-mips16 so that the non-MIPS16 libraries can still be
-# linked against partly-MIPS16 code.  The -mcode-xonly option allows
+# linked against partly-MIPS16 code.  The -mcode-readable=pcrel option allows
 # MIPS16 libraries to run on Harvard-style split I/D memories, so long
 # as they have the D-to-I redirect for PC-relative loads.  -mno-gpopt
 # has two purposes: it allows libraries to be used in situations where
 # $gp != our _gp, and it allows them to be built with -G8 while
-# retaining link compability with -G0 and -G4.
-CFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-xonly -mno-gpopt
-CXXFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-xonly -mno-gpopt
+# retaining link compatibility with -G0 and -G4.
+CFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-readable=pcrel -mno-gpopt
+CXXFLAGS_FOR_TARGET += -Os -minterlink-mips16 -mcode-readable=pcrel -mno-gpopt
diff --git a/config/picflag.m4 b/config/picflag.m4
index bd818125a6..3bcdbf1de3 100644
--- a/config/picflag.m4
+++ b/config/picflag.m4
@@ -17,7 +17,9 @@ case "${$2}" in
     hppa*64*-*-hpux*)
 	# PIC is the default for 64-bit PA HP-UX.
 	;;
-    i[[34567]]86-*-cygwin* | i[[34567]]86-*-mingw* | x86_64-*-mingw*)
+    i[[34567]]86-*-cygwin* | x86_64-*-cygwin*)
+	;;
+    i[[34567]]86-*-mingw* | x86_64-*-mingw*)
 	;;
     i[[34567]]86-*-interix[[3-9]]*)
 	# Interix 3.x gcc -fpic/-fPIC options generate broken code.
@@ -48,9 +50,6 @@ case "${$2}" in
     i[[34567]]86-*-* | x86_64-*-*)
 	$1=-fpic
 	;;
-    m68k-*-*)
-	$1=-fpic
-	;;
     # FIXME: Override -fPIC default in libgcc only? 
     sh-*-linux* | sh[[2346lbe]]*-*-linux*)
 	$1=-fpic
diff --git a/config/stdint.m4 b/config/stdint.m4
index fbdd58619a..61898a75fa 100644
--- a/config/stdint.m4
+++ b/config/stdint.m4
@@ -18,7 +18,7 @@ dnl the "ISO C9X: 7.18 Integer types <stdint.h>" section requires the
 dnl existence of an include file <stdint.h> that defines a set of
 dnl typedefs, especially uint8_t,int32_t,uintptr_t.
 dnl Many older installations will not provide this file, but some will
-dnl have the very same definitions in <inttypes.h>. In other enviroments
+dnl have the very same definitions in <inttypes.h>. In other environments
 dnl we can use the inet-types in <sys/types.h> which would define the
 dnl typedefs int8_t and u_int8_t respectivly.
 dnl
diff --git a/config/tcl.m4 b/config/tcl.m4
index 900a2ceb81..59a0c7e0a5 100644
--- a/config/tcl.m4
+++ b/config/tcl.m4
@@ -290,7 +290,7 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
     elif test "`uname -s`" = "Darwin"; then
 	# If Tcl was built as a framework, attempt to use the libraries
 	# from the framework at the given location so that linking works
-	# against Tcl.framework installed in an arbitary location.
+	# against Tcl.framework installed in an arbitrary location.
 	case ${TCL_DEFS} in
 	    *TCL_FRAMEWORK*)
 		if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
@@ -373,7 +373,7 @@ AC_DEFUN([SC_LOAD_TKCONFIG], [
     elif test "`uname -s`" = "Darwin"; then
 	# If Tk was built as a framework, attempt to use the libraries
 	# from the framework at the given location so that linking works
-	# against Tk.framework installed in an arbitary location.
+	# against Tk.framework installed in an arbitrary location.
 	case ${TK_DEFS} in
 	    *TK_FRAMEWORK*)
 		if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then
@@ -815,7 +815,7 @@ AC_DEFUN([SC_ENABLE_LANGINFO], [
 #
 #	Defines the following variable:
 #
-#	MAN_FLAGS -	The apropriate flags for installManPage
+#	MAN_FLAGS -	The appropriate flags for installManPage
 #			according to the user's selection.
 #
 #--------------------------------------------------------------------
diff --git a/config/weakref.m4 b/config/weakref.m4
index 39b63d39b8..ecb8567280 100644
--- a/config/weakref.m4
+++ b/config/weakref.m4
@@ -38,7 +38,6 @@ int main ()
 }
 ]])], ac_cv_have_elf_style_weakref=yes, ac_cv_have_elf_style_weakref=no, [
 case "${host}" in
-  alpha*-dec-osf*) ac_cv_have_elf_style_weakref=no ;;
   *-apple-darwin[[89]]*) ac_cv_have_elf_style_weakref=no ;;
   *) ac_cv_have_elf_style_weakref=yes;;
 esac])CFLAGS="$weakref_m4_saved_CFLAGS"])