re PR bootstrap/38014 (in-tree gmp and mpfr libraries no longer work)

re PR bootstrap/38014 (in-tree gmp and mpfr libraries no longer work)

	PR bootstrap/38014
	PR bootstrap/37923

	Revert:

	2008-10-24  Daniel Jacobowitz  <dan@codesourcery.com>

	* Makefile.tpl (HOST_EXPORTS): Correct CPPFLAGS typo.
	* Makefile.in: Regenerated.

	2008-10-22  Daniel Jacobowitz  <dan@codesourcery.com>

	* Makefile.def (flags_to_pass): Add CPPFLAGS_FOR_BUILD and CPPFLAGS.
	* Makefile.tpl (BUILD_EXPORTS): Set CPPFLAGS.
	(EXTRA_BUILD_FLAGS): Correct typo.  Pass CPPFLAGS.
	(HOST_EXPORTS): Pass CPPFLAGS.
	(CPPFLAGS_FOR_BUILD, CPPFLAGS, CPPFLAGS_FOR_TARGET): Define.
	(LDFLAGS_FOR_TARGET): Initialize from configure script.
	(EXTRA_TARGET_FLAGS): Set CPPFLAGS.
	* Makefile.in, configure: Regenerated.
	* configure.ac: Set CPPFLAGS_FOR_TARGET, LDFLAGS_FOR_TARGET,
	and CPPFLAGS_FOR_BUILD.

From-SVN: r141859