libstdc++.exp (libstdc++_init): Search the path for the compiler.

libstdc++.exp (libstdc++_init): Search the path for the compiler.

	* testsuite/lib/libstdc++.exp (libstdc++_init): Search the path
	for the compiler.  Don't set cxxflags.
	(v3_target_compile): Search for libv3test.a relative to $objdir.
	(lsearch_all_inline): New.
	(lsearch_all_inline_not): New.
	(v3-list-tests): Rewrite to not need generated files.
	* testsuite/Makefile.am (IGNORE_WCHAR_T): New.
	(IGNORE_THREAD): New.
	(TESTS_TO_IGNORE): New.
	(site.exp): Set tests_to_ignore, cxxflags.
	* aclocal.m4: Regenerate.
	* Makefile.in: Regenerate.
	* libmath/Makefile.in: Likewise.
	* libsupc++/Makefile.in: Likewise.
	* po/Makefile.in: Likewise.
	* src/Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.

From-SVN: r94384