PR sanitizer/56781

	PR sanitizer/56781
lto-plugin/
	* Makefile.am (CFLAGS, LDFLAGS): Filter out -fsanitize=address.
	(liblto_plugin_la_LIBADD, liblto_plugin_la_LDFLAGS,
	liblto_plugin_la_DEPENDENCIES): Prefer ../libiberty/noasan/libiberty.a
	over ../libiberty/pic/libiberty.a if the former exists.
	* Makefile.in: Regenerated.
libiberty/
	* maint-tool: Also emit rule for noasan/ subdirectory.
	* configure.ac (NOASANFLAG): Set and substitute.
	* Makefile.in: Regenerated.
	(NOASANFLAG): Set.
	(all, $(TARGETLIB), mostlyclean): Handle noasan subdir like pic
	subdir.
	(stamp-noasandir): New goal.
	* configure: Regenerated.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209476 138bc75d-0d04-0410-961f-82ee72b054a4