Sync toplevel with GCC, merge.

/:
	2009-07-31  Christian Bruel  <christian.bruel@st.com>

	* configure.ac (sh*-*-elf): Don't add target-libgloss to noconfigdirs.
	* configure: Regenerate.

	2009-07-06  Ian Lance Taylor  <iant@google.com>

	* configure.ac: Add missing comma in AC_ARG_WITH(boot-libs).
	* configure: Rebuild.

	2009-06-26  Steve Ellcey  <sje@cup.hp.com>

	PR bootstrap/40338
	* configure.ac (comparestring): Create new variable.
	* Makefile.tpl (comparestring): Use to skip some comparisions.
	* configure: Regenerate.
	* Makefile.in: Regenerate.

	2009-06-23  Ian Lance Taylor  <iant@google.com>

	* configure.ac: Add --enable-build-with-cxx.  When set, add c++ to
	boot_languages.  Only bootstrap target libraries listed in
	target_libs for some boot language.  Add --with-stage1-ldflags,
	--with-stage1-libs, --with-boot-ldflags, --with-boot-libs.  Remove
	with_host_libstdcxx from ppllibs.  Only add -fkeep-inline-functions
	if not building with C++.
	* Makefile.def: For target_module libstdc++-v3, set bootstrap=true.
	* Makefile.tpl (STAGE1_LDFLAGS, STAGE1_LIBS): New variables.
	(POSTSTAGE1_LDFLAGS, POSTSTAGE1_LIBS): New variables.
	(HOST_EXPORTS): Add STAGE1_LDFLAGS to LDFLAGS.  Export HOST_LIBS.
	(POSTSTAGE1_HOST_EXPORTS): Set CXX and CXX_FOR_BUILD.  Add
	POSTSTAGE1_LDFLAGS to LDFLAGS.  Export HOST_LIBS.
	(POSTSTAGE1_FLAGS_TO_PASS): Likewise.
	* configure, Makefile.in: Rebuild.

	2009-06-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* configure.ac: Detect MPC in default directory.
	* configure: Regenerate.

	2009-06-02  Richard Sandiford  <r.sandiford@uk.ibm.com>

	* configure.ac (powerpc-*-aix*, rs6000-*-aix*): Add target-newlib
	to noconfdirs.
	* configure: Regenerate.

	2009-05-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.def: Add MPC support and dependencies.
	* configure.ac: Likewise.  Reorganize GMP/MPFR checks.

	* Makefile.in, configure: Regenerate.

	2009-05-24  Nicolas Roche  <roche@adacore.com>

	* Makefile.tpl (compare-target): Skip ./ada/*tools directories.
	* Makefile.in: Regenerate.

	2009-05-21  Dave Korn  <dave.korn.cygwin@gmail.com>

	* configure.ac (cygwin noconfigdirs):  Remove libgcj.
	* configure:  Regenerate.

	2009-05-07  Dave Korn  <dave.korn.cygwin@gmail.com>

	* configure.ac ($with_ppl):  Default to no if not supplied.
	($with_cloog):  Likewise.
	configure:  Regenerate.

	2009-04-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	PR bootstrap/39739
	* configure.ac (extra_mpfr_configure_flags): Set and AC_SUBST.
	* Makefile.def (module=mpfr): Use extra_mpfr_configure_flags.

	* configure, Makefile.in: Regenerate.

	2009-04-14  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: Change copyright header to refer to version
	3 of the GNU General Public License and to point readers at the
	COPYING3 file and the FSF's license web page.
	* Makefile.def: Likewise.
	* Makefile.tpl: Likewise.
	* Makefile.in: Regenerate.

	2009-04-09  Jack Howarth  <howarth@bromo.med.uc.edu>

	* configure.ac: Restore match for darwin9 or later. Use double
	brackets since regeneration eats one pair.
	* configure: Regenerate.