Sync toplevel files with GCC tree

2012-08-14   Diego Novillo  <dnovillo@google.com>

	Merge from cxx-conversion branch.

	* Makefile.tpl (STAGE[+id+]_CXXFLAGS): Remove
	POSTSTAGE1_CONFIGURE_FLAGS.
	* Makefile.in: Regenerate.
	* configure.ac (ENABLE_BUILD_WITH_CXX): Remove.  Update all users.
	Force C++ when bootstrapping.
	* configure: Regenerate.

2012-07-06  Richard Guenther  <rguenther@suse.de>

	* Makefile.def (cloog): Pass $(HOST_GMPINC) and $(HOST_ISLINC)
	as CPPFLAGS, pass path to built gmp as LDFLAGS, always use
	--with-gmp=system.
	* Makefile.in: Regenerated.
	* configure: Likewise.

2012-07-06  Richard Guenther  <rguenther@suse.de>

	* configure.ac (extra_isl_gmp_configure_flags): Initialize and subst.
	* Makefile.def (isl): Use extra_isl_gmp_configure_flags and
	supply V=1 as extra_make_flags.
	* configure: Regenerated.
	* Makefile.in: Likewise.

2012-07-03  Richard Guenther  <rguenther@suse.de>

	* Makfile.def (isl): Remove not necessary extra_exports and
	extra_make_flags.
	(cloog): Use $$CPPFLAGS instead of ${CPPFLAGS}.
	* Makefile.in: Regenerated.

2012-07-03  Richard Guenther  <rguenther@suse.de>

	* Makefile.def (cloog): Add V=1 to extra_make_flags.
	* configure.ac: If either the ISL or the CLooG check failed
	do not try to build in-tree versions.
	* Makefile.in: Regenerated.
	* configure: Regenerated.

2012-07-02  Richard Guenther  <rguenther@suse.de>
	Michael Matz  <matz@suse.de>
	Tobias Grosser <tobias@grosser.es>
	Sebastian Pop <sebpop@gmail.com>

	* Makefile.def: Add ISL host module, remove PPL host module.
	Adjust ClooG host module to use the proper ISL.
	* Makefile.tpl: Pass ISL include flags instead of PPL ones.
	* configure.ac: Include config/isl.m4.  Add ISL host library,
	remove PPL.  Remove PPL configury, add ISL configury, adjust
	ClooG configury.
	* Makefile.in: Regenerated.
	* configure: Likewise.

2012-07-02  Richard Guenther  <rguenther@suse.de>

	Merge from graphite branch
	2011-07-21  Tobias Grosser  <tobias@grosser.es>

	* configure: Regenerated.
	* config/cloog.m4: Remove support for CLooG-ppl and CLooG-parma,
	both cloog.org and legacy versions. The only supported version will
	be CLooG with the isl backend.

	2011-07-21  Tobias Grosser  <tobias@grosser.es>

	* configure: Regenerated.
	* configure.ac: Require cloog isl 0.17.0

	2011-07-21  Tobias Grosser  <tobias@grosser.es>

	* configure: Regenerated.
	* config/cloog.m4: Do not define CLOOG_ORG

2012-06-29  Steven Bosscher  <steven@gcc.gnu.org>

	* configure.ac: Skip C if explicitly selected.
	* configure: Regenerate.

2012-06-28  Christophe Lyon <christophe.lyon@st.com>

	* configure.ac (CFLAGS_FOR_TARGET, CXXFLAGS_FOR_TARGET): Make sure
	they contain -O2.
	* configure: Regenerate.

2012-06-20  Jason Merrill  <jason@redhat.com>

	* Makefile.tpl (check-target-libgomp-c++): New.
	(check-target-libitm-c++): New.
	* Makefile.def (c++): Add them.
	* Makefile.in: Regenerate.

2012-05-16  Olivier Hainque  <hainque@adacore.com>

	* Makefile.tpl (gcc-no-fixedincludes): Rename into ...
	(gcc-install-no-fixedincludes): Now forwarder to local target in gcc/
	(install-no-fixedincludes): Adjust accordingly.
	* Makefile.in: Regenerate.

2012-05-09  Nick Clifton  <nickc@redhat.com>
	    Paul Smith  <psmith@gnu.org>

	PR bootstrap/50461
	* configure.ac (mpfr-dir): When using in-tree MPFR sources
	allow for the fact that from release v3.1.0 of MPFR the source
	files were moved into a src sub-directory.
	* configure: Regenerate.

2012-05-07  Janne Blomqvist  <jb@gcc.gnu.org>

	* configure.ac: Bump minimum MPFR version to 2.4.0.
	* configure: Regenerated.

2012-05-01  Richard Henderson  <rth@redhat.com>

	* Makefile.def (libatomic): New target_module.
	* configure.ac (target_libraries): Add libatomic.
	(noconfigdirs): Check if libatomic is supported.
	* Makefile.in, configure: Rebuild.

config/

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.

1 files changed, 90 insertions, 193 deletions

diff --git a/configure.ac b/configure.ac
index 5efb4a32f..27692b45b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,6 +28,7 @@ m4_include([ltoptions.m4])
 m4_include([ltsugar.m4])
 m4_include([ltversion.m4])
 m4_include([lt~obsolete.m4])
+m4_include([config/isl.m4])
 m4_include([config/cloog.m4])
 
 AC_INIT(move-if-change)
@@ -112,11 +113,11 @@ extra_host_args=
 ### or a host dependent tool.  Then put it into the appropriate list
 ### (library or tools, host or target), doing a dependency sort.
 
-# Subdirs will be configured in the order listed in build_configdirs,
+# Subdirs will be configured in the order listed in build_configdirs, 
 # configdirs, or target_configdirs; see the serialization section below.
 
-# Dependency sorting is only needed when *configuration* must be done in
-# a particular order.  In all cases a dependency should be specified in
+# Dependency sorting is only needed when *configuration* must be done in 
+# a particular order.  In all cases a dependency should be specified in 
 # the Makefile, whether or not it's implicitly specified here.
 
 # Double entries in build_configdirs, configdirs, or target_configdirs may
@@ -132,7 +133,7 @@ build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
 
 # these libraries are used by various programs built for the host environment
 #
-host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv"
+host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc isl cloog libelf libiconv"
 
 # these tools are built for the host environment
 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
@@ -154,6 +155,7 @@ target_libraries="target-libgcc \
 		target-libgloss \
 		target-newlib \
 		target-libgomp \
+		target-libatomic \
 		target-libitm \
 		target-libstdc++-v3 \
 		target-libmudflap \
@@ -209,7 +211,7 @@ if test x"${host}" = x"${target}" ; then
   is_cross_compiler=no
 else
   is_cross_compiler=yes
-fi
+fi	
 
 # Find the build and target subdir names.
 GCC_TOPLEV_SUBDIRS
@@ -245,7 +247,7 @@ if test x$with_system_zlib = xyes ; then
   noconfigdirs="$noconfigdirs zlib"
 fi
 
-# some tools are so dependent upon X11 that if we're not building with X,
+# some tools are so dependent upon X11 that if we're not building with X, 
 # it's not even worth trying to configure, much less build, that tool.
 
 case ${with_x} in
@@ -253,7 +255,7 @@ case ${with_x} in
   no)
     skipdirs="${skipdirs} tk itcl libgui"
     # We won't be able to build gdbtk without X.
-    enable_gdbtk=no
+    enable_gdbtk=no 
     ;;
   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 esac
@@ -313,7 +315,7 @@ case "${ENABLE_GOLD}" in
       *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
       | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
       | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
-      | *-*-solaris2* | *-*-nto* | *-*-nacl*)
+      | *-*-solaris2* | *-*-nto*)
         case "${target}" in
           *-*-linux*aout* | *-*-linux*oldld*)
             ;;
@@ -379,7 +381,7 @@ esac
 # Only spaces may be used in this macro; not newlines or tabs.
 unsupported_languages=
 
-# Remove more programs from consideration, based on the host or
+# Remove more programs from consideration, based on the host or 
 # target this usually means that a port of the program doesn't
 # exist yet.
 
@@ -493,6 +495,22 @@ if test x$enable_libgomp = x ; then
     esac
 fi
 
+# Disable libatomic on unsupported systems.
+if test -d ${srcdir}/libatomic; then
+    if test x$enable_libatomic = x; then
+	AC_MSG_CHECKING([for libatomic support])
+	if (srcdir=${srcdir}/libatomic; \
+		. ${srcdir}/configure.tgt; \
+		test -n "$UNSUPPORTED")
+	then
+	    AC_MSG_RESULT([no])
+	    noconfigdirs="$noconfigdirs target-libatomic"
+	else
+	    AC_MSG_RESULT([yes])
+	fi
+    fi
+fi
+
 # Disable libitm on unsupported systems.
 if test -d ${srcdir}/libitm; then
     if test x$enable_libitm = x; then
@@ -689,7 +707,7 @@ case "${target}" in
     ;;
   *-*-lynxos*)
     noconfigdirs="$noconfigdirs ${libgcj}"
-    ;;
+    ;; 
 esac
 
 # Default libgloss CPU subdirectory.
@@ -774,7 +792,7 @@ case "${target}" in
     ;;
   *-*-lynxos*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
-    ;;
+    ;; 
   *-*-mingw*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
@@ -872,9 +890,6 @@ case "${target}" in
   tic54x-*-*)
     noconfigdirs="$noconfigdirs target-libgloss gdb"
     ;;
-  cr16-*-*)
-    noconfigdirs="$noconfigdirs gdb"
-    ;;
   d10v-*-*)
     noconfigdirs="$noconfigdirs target-libgloss"
     ;;
@@ -924,7 +939,8 @@ case "${target}" in
     noconfigdirs="$noconfigdirs libgui itcl ld"
     ;;
   ia64*-*-*vms*)
-    noconfigdirs="$noconfigdirs libgui itcl"
+    # No ld support yet.
+    noconfigdirs="$noconfigdirs libgui itcl ld"
     ;;
   i[[3456789]]86-w64-mingw*)
     ;;
@@ -1069,16 +1085,13 @@ case "${host}" in
   *-mingw*)
     host_makefile_frag="config/mh-mingw"
     ;;
-  *-interix*)
-    host_makefile_frag="config/mh-interix"
-    ;;
   hppa*-hp-hpux10*)
     host_makefile_frag="config/mh-pa-hpux10"
     ;;
   hppa*-hp-hpux*)
     host_makefile_frag="config/mh-pa"
     ;;
-  hppa*-*)
+  hppa*-*)	
     host_makefile_frag="config/mh-pa"
     ;;
   *-*-darwin*)
@@ -1191,20 +1204,6 @@ case "$have_compiler:$host:$target:$enable_bootstrap" in
     ;;
 esac
 
-# See if we are building gcc with C++.
-AC_ARG_ENABLE(build-with-cxx,
-[AS_HELP_STRING([--enable-build-with-cxx],
-		[build with C++ compiler instead of C compiler])],
-ENABLE_BUILD_WITH_CXX=$enableval,
-ENABLE_BUILD_WITH_CXX=no)
-
-# Build stage1 with C and build stages 2 and 3 with C++.
-AC_ARG_ENABLE(build-poststage1-with-cxx,
-[AS_HELP_STRING([--enable-build-poststage1-with-cxx],
-		[build stages 2 and 3 with C++, not C])],
-ENABLE_BUILD_POSTSTAGE1_WITH_CXX=$enableval,
-ENABLE_BUILD_POSTSTAGE1_WITH_CXX=yes)
-
 # Used for setting $lt_cv_objdir
 _LT_CHECK_OBJDIR
 
@@ -1328,6 +1327,7 @@ if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp;
   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
   extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
   extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
+  extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
   # Do not test the gmp version.  Assume that it is sufficient, since
   # it is in the source tree, and the library has not been built yet
   # but it would be included on the link line in the version check below
@@ -1362,7 +1362,7 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
     AC_MSG_CHECKING([for the correct version of mpfr.h])
     AC_TRY_COMPILE([#include <gmp.h>
     #include <mpfr.h>],[
-    #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
+    #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
     choke me
     #endif
     ], [AC_TRY_COMPILE([#include <gmp.h>
@@ -1422,7 +1422,7 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
 # The library versions listed in the error message below should match
 # the HARD-minimums enforced above.
   if test x$have_gmp != xyes; then
-    AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
+    AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
 their locations.  Source code for these libraries can be found at
 their respective hosting sites as well as at
@@ -1440,6 +1440,7 @@ AC_SUBST(gmpinc)
 AC_SUBST(extra_mpfr_configure_flags)
 AC_SUBST(extra_mpc_gmp_configure_flags)
 AC_SUBST(extra_mpc_mpfr_configure_flags)
+AC_SUBST(extra_isl_gmp_configure_flags)
 
 # Allow host libstdc++ to be specified for static linking with PPL.
 AC_ARG_WITH(host-libstdcxx,
@@ -1505,119 +1506,44 @@ AC_ARG_WITH(boot-ldflags,
  fi])
 AC_SUBST(poststage1_ldflags)
 
-# Check for PPL
-ppllibs=
-pplinc=
-pwllib=
-
-AC_ARG_WITH(ppl,
-[AS_HELP_STRING([--with-ppl=PATH],
-		[specify prefix directory for the installed PPL package.
-		 Equivalent to --with-ppl-include=PATH/include
-		 plus --with-ppl-lib=PATH/lib])])
-AC_ARG_WITH(ppl-include,
-[AS_HELP_STRING([--with-ppl-include=PATH],
-		[specify directory for installed PPL include files])])
-AC_ARG_WITH(ppl-lib,
-[AS_HELP_STRING([--with-ppl-lib=PATH],
-		[specify directory for the installed PPL library])])
-
-AC_ARG_ENABLE(ppl-version-check,
-[AS_HELP_STRING([--disable-ppl-version-check],
-		[disable check for PPL version])])
-
-case $with_ppl in
-  yes | no | "")
-    ;;
-  *)
-    ppllibs="-L$with_ppl/lib"
-    pplinc="-I$with_ppl/include $pplinc"
-    if test -d "$with_ppl/lib" && test -d "$with_ppl/include"; then
-      with_ppl=yes
-    else
-      AC_MSG_ERROR([cannot find directories "$with_ppl/lib" or "$with_ppl/include"])
-    fi
-    ;;
-esac
-
-if test x"$with_ppl_include" != x; then
-  pplinc="-I$with_ppl_include $pplinc"
-  with_ppl=yes
-fi
-
-if test "x$with_ppl_lib" != x; then
-  ppllibs="-L$with_ppl_lib"
-  with_ppl=yes
-fi
-
-if test x"$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
-  if test x"$enable_watchdog" = xyes; then
-    pwllib="-lpwl"
-  fi
-  ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"
-  pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
-  enable_ppl_version_check=no
-  with_ppl=yes
-fi
-
-if test "x$with_ppl" != xno; then
-  if test "x$pwllib" = x; then
-    saved_LIBS="$LIBS"
-    LIBS="$LIBS $ppllibs -lstdc++ -lm"
-    AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
-    LIBS="$saved_LIBS"
-  fi
-
-  ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
+# Check for ISL
+dnl Provide configure switches and initialize islinc & isllibs
+dnl with user input.
+ISL_INIT_FLAGS
+if test "x$with_isl" != "xno"; then
+  dnl The minimal version of ISL required for Graphite.
+  ISL_CHECK_VERSION(0,10)
 
-  if test "$enable_ppl_version_check" != no; then
-    saved_CFLAGS="$CFLAGS"
-    CFLAGS="$CFLAGS $pplinc $gmpinc"
-    AC_MSG_CHECKING([for version 0.11 (revision 0 or later) of PPL])
-    AC_TRY_COMPILE([#include "ppl_c.h"],[
-    #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11
-    choke me
-    #endif
-    ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
-    CFLAGS="$saved_CFLAGS"
-  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.])])
 fi
 
-# Flags needed for PPL
-AC_SUBST(ppllibs)
-AC_SUBST(pplinc)
-
-
 # Check for CLOOG
-
 dnl Provide configure switches and initialize clooginc & clooglibs
 dnl with user input.
 CLOOG_INIT_FLAGS
-if test "x$with_ppl" = "xno"; then
-  dnl Only execute fail-action, if CLooG has been requested.
-  CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
-  if test "${graphite_requested}" = yes; then
-    AC_MSG_ERROR([Unable to find a usable PPL.  See config.log for details.])
-  fi
-  with_cloog=no
-fi
-if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
-  && test "x${with_cloog_lib}" = 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 '
-fi
-if test "x$with_cloog" != "xno"; then
+if test "x$isllibs" = x && test "x$islinc" = x; then
+  clooglibs=
+  clooginc=
+elif test "x$with_cloog" != "xno"; then
   dnl The minimal version of CLooG required for Graphite.
   dnl
   dnl If we use CLooG-Legacy, the provided version information is
   dnl ignored.
-  CLOOG_CHECK_VERSION(0,16,1)
+  CLOOG_CHECK_VERSION(0,17,0)
 
   dnl Only execute fail-action, if CLooG has been requested.
   CLOOG_IF_FAILED([
     AC_MSG_ERROR([Unable to find a usable CLooG.  See config.log for details.])])
 fi
 
+# If either the ISL or the CLooG check failed, disable builds of in-tree
+# variants of both
+if test "x$clooglibs" = x && test "x$clooginc" = x; then
+  noconfigdirs="$noconfigdirs cloog isl"
+fi
+
 # Check for LTO support.
 AC_ARG_ENABLE(lto,
 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
@@ -1655,7 +1581,7 @@ ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
 ])
 
 
-# By default, C is the only stage 1 language.
+# By default, C and C++ are the only stage 1 languages.
 stage1_languages=,c,
 
 # Target libraries that we bootstrap.
@@ -1693,15 +1619,14 @@ if test -d ${srcdir}/gcc; then
       ;;
   esac
 
-  # If bootstrapping, then using --enable-build-with-cxx or
-  # --enable-build-poststage1-with-cxx requires enabling C++.
-  case ",$enable_languages,:,$ENABLE_BUILD_WITH_CXX,$ENABLE_BUILD_POSTSTAGE1_WITH_CXX,:$enable_bootstrap" in
-    *,c++,*:*:*) ;;
-    *:*,yes,*:yes)
+  # If bootstrapping, C++ must be enabled.
+  case ",$enable_languages,:$enable_bootstrap" in
+    *,c++,*:*) ;;
+    *:yes)
       if test -f ${srcdir}/gcc/cp/config-lang.in; then
         enable_languages="${enable_languages},c++"
       else
-        AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx or --enable-build-poststage1-with-cxx requires c++ sources])
+        AC_MSG_ERROR([bootstrapping requires c++ sources])
       fi
       ;;
   esac
@@ -1781,7 +1706,7 @@ if test -d ${srcdir}/gcc; then
       # an apparent bug in bash 1.12 on linux.
       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
       *)
-        # From the config-lang.in, get $language, $target_libs,
+        # From the config-lang.in, get $language, $target_libs, 
         # $lang_dirs, $boot_language, and $build_by_default
         language=
         target_libs=
@@ -1796,16 +1721,16 @@ if test -d ${srcdir}/gcc; then
         fi
 
 	if test "$language" = "c++"; then
-	  if test "$ENABLE_BUILD_WITH_CXX" = "yes" \
-	     || test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
-	    boot_language=yes
-	  fi
+	  boot_language=yes
 	fi
 
         case ,${enable_languages}, in
           *,${language},*)
-            # Language was explicitly selected; include it.
-            add_this_lang=yes
+            # Language was explicitly selected; include it
+	    # unless it is C, which is enabled by default.
+	    if test "$language" != "c"; then
+	      add_this_lang=yes
+	    fi
             ;;
           *,all,*)
             # 'all' was selected, select it if it is a default language
@@ -1981,6 +1906,14 @@ case ,${enable_languages},:${enable_objc_gc} in
     ;;
 esac
 
+# Disable libitm if we're not building C++
+case ,${enable_languages}, in
+  *,c++,*) ;;
+  *)
+    noconfigdirs="$noconfigdirs target-libitm"
+    ;;
+esac
+
 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
 # $build_configdirs and $target_configdirs.
 # If we have the source for $noconfigdirs entries, add them to $notsupp.
@@ -2026,7 +1959,7 @@ done
 build_configdirs_all="$build_configdirs"
 build_configdirs=
 for i in ${build_configdirs_all} ; do
-  j=`echo $i | sed -e s/build-//g`
+  j=`echo $i | sed -e s/build-//g` 
   if test -f ${srcdir}/$j/configure ; then
     build_configdirs="${build_configdirs} $i"
   fi
@@ -2043,7 +1976,7 @@ done
 target_configdirs_all="$target_configdirs"
 target_configdirs=
 for i in ${target_configdirs_all} ; do
-  j=`echo $i | sed -e s/target-//g`
+  j=`echo $i | sed -e s/target-//g` 
   if test -f ${srcdir}/$j/configure ; then
     target_configdirs="${target_configdirs} $i"
   fi
@@ -2094,7 +2027,7 @@ ACX_TOOL_DIRS
 
 copy_dirs=
 
-AC_ARG_WITH([build-sysroot],
+AC_ARG_WITH([build-sysroot], 
   [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
 		  [use sysroot as the system root during the build])],
   [if test x"$withval" != x ; then
@@ -2185,11 +2118,11 @@ fi
 # This is done by determining whether or not the appropriate directory
 # is available, and by checking whether or not specific configurations
 # have requested that this magic not happen.
-#
-# The command line options always override the explicit settings in
+# 
+# The command line options always override the explicit settings in 
 # configure.in, and the settings in configure.in override this magic.
 #
-# If the default for a toolchain is to use GNU as and ld, and you don't
+# If the default for a toolchain is to use GNU as and ld, and you don't 
 # want to do that, then you should use the --without-gnu-as and
 # --without-gnu-ld options for the configure script.  Similarly, if
 # the default is to use the included zlib and you don't want to do that,
@@ -2290,16 +2223,12 @@ case "${target}" in
     target_makefile_frag="config/mt-gnu"
     ;;
   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
-    # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
+    # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm 
     # commands to handle both 32-bit and 64-bit objects.  These flags are
     # harmless if we're using GNU nm or ar.
     extra_arflags_for_target=" -X32_64"
     extra_nmflags_for_target=" -B -X32_64"
     ;;
-  *-*-darwin[[3-9]]*)
-    # ranlib before Darwin10 requires the -c flag to look at common symbols.
-    extra_ranlibflags_for_target=" -c"
-    ;;
 esac
 
 alphaieee_frag=/dev/null
@@ -2364,7 +2293,7 @@ if test $? = 0 ; then
   if test -s conftest || test -s conftest.exe ; then
     we_are_ok=yes
   fi
-fi
+fi 
 case $we_are_ok in
   no)
     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
@@ -2665,7 +2594,7 @@ changequote(,)
 changequote([,])
 
     case $lib in
-    mpc | mpfr | gmp | ppl | cloog)
+    mpc | mpfr | gmp | cloog)
       # If we're processing --with-$lib, --with-$lib-include or
       # --with-$lib-lib, for one of the libs above, and target is
       # different from host, don't pass the current argument to any
@@ -2734,7 +2663,7 @@ baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
 # --program-suffix have been applied to it.  Autoconf has already
 # doubled dollar signs and backslashes in program_transform_name; we want
 # the backslashes un-doubled, and then the entire thing wrapped in single
-# quotes, because this will be expanded first by make and then by the shell.
+# quotes, because this will be expanded first by make and then by the shell. 
 # Also, because we want to override the logic in subdir configure scripts to
 # choose program_transform_name, replace any s,x,x, with s,y,y,.
 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
@@ -3059,7 +2988,7 @@ AC_SUBST(CFLAGS)
 AC_SUBST(CXXFLAGS)
 
 # Target tools.
-AC_ARG_WITH([build-time-tools],
+AC_ARG_WITH([build-time-tools], 
   [AS_HELP_STRING([--with-build-time-tools=PATH],
 		  [use given path to find target tools during the build])],
   [case x"$withval" in
@@ -3164,7 +3093,7 @@ if test "$USE_MAINTAINER_MODE" = yes; then
 else
   MAINTAINER_MODE_TRUE='#'
   MAINTAINER_MODE_FALSE=
-fi
+fi	
 MAINT=$MAINTAINER_MODE_TRUE
 AC_SUBST(MAINT)dnl
 
@@ -3182,26 +3111,6 @@ case $build in
     esac ;;
 esac
 
-# This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
-if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
-  saved_CFLAGS="$CFLAGS"
-
-  # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
-  CFLAGS="$CFLAGS -fkeep-inline-functions"
-  AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
-  AC_TRY_COMPILE([
-#if (__GNUC__ < 3) \
-    || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
-			  || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
-#error http://gcc.gnu.org/PR29382
-#endif
-    ],,
-    [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
-    [AC_MSG_RESULT([no])])
-
-  CFLAGS="$saved_CFLAGS"
-fi
-
 AC_SUBST(stage1_cflags)
 
 # Enable --enable-checking in stage1 of the compiler.
@@ -3231,15 +3140,6 @@ case ${enable_werror} in
 esac
 AC_SUBST(stage2_werror_flag)
 
-# If using ENABLE_BUILD_POSTSTAGE1_WITH_CXX, pass
-# --enable-build-with-cxx after stage1.
-if test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
-  POSTSTAGE1_CONFIGURE_FLAGS=--enable-build-with-cxx
-else
-  POSTSTAGE1_CONFIGURE_FLAGS=
-fi
-AC_SUBST(POSTSTAGE1_CONFIGURE_FLAGS)
-
 # Specify what files to not compare during bootstrap.
 
 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
@@ -3247,9 +3147,6 @@ case "$target" in
   hppa*64*-*-hpux*) ;;
   hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
 esac
-case " $configdirs " in
-*" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
-esac
 AC_SUBST(compare_exclusions)
 
 AC_CONFIG_FILES([Makefile],