PR bootstrap/64023
	* Makefile.tpl (EXTRA_TARGET_FLAGS): Set STAGE1_LDFLAGS
	to POSTSTAGE1_LDFLAGS and STAGE1_LIBS to POSTSTAGE1_LIBS.
	Add -B to libstdc++-v3/src/.libs and libstdc++-v3/libsupc++/.libs
	to CXX.
	* Makefile.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218705 138bc75d-0d04-0410-961f-82ee72b054a4