Patch to fix canadian cross build problem with libcpp.a.

Patch to fix canadian cross build problem with libcpp.a.
	* Makefile.in: Change all uses of AR to AR_FOR_TARGET.  Change all uses
	of HOST_AR to AR.  Likewise for AR_FLAGS, RANLIB, and RANLIB_TEST.
	(RANLIB_TEST): Test to see if ranlib exists.  Only test absolute file
	names if host == target.
	(HOST_AR, HOST_AR_FLAGS, HOST_RANLIB, HOST_RANLIB_TEST): Delete.
	(AR_FLAGS_FOR_TARGET): Renamed from AR_FOR_TARGET_FLAGS.
	(AR, AR_FLAGS, OLDAR, OLDAR_FLAGS, RANLIB, RANLIB_TEST): Delete rules
	setting them to *_FOR_TARGET.
	* cross-make (AR, AR_FLAGS, OLDAR, OLDAR_FLAGS, RANLIB, RANLIB_TEST):
	Delete.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@24991 138bc75d-0d04-0410-961f-82ee72b054a4