[PATCH] Allow custom flags passed to target-lib builds

[Richard Guenther]

This patch allows to override f.i. toolexeclibdir for libgfortran build,
so a special libgfortran can be built and installed from the packaging
machinery like

 make clean-target-libgfortran
 make all-target-libgfortran CFLAGS="-march=pentiumpro -msse2 -mfpmath=sse,387" FFLAGS="-msse2 -mfpmath=sse,387"
 make install-target-libgfortran USER_TARGET_FLAGS='toolexeclibdir=\$(libdir)/i686/sse2'

which is not possible right now (ok, it is, but not without a lot of 
pain).

Now simply USER_TAGET_FLAGS is appended to the TARGET_FLAGS_TO_PASS flags.

Ok for mainline and maybe 4.1?

Thanks,
Richard.

:ADDPATCH toplevel:

2005-11-24  Richard Guenther  <rguenther@suse.de>

	* Makefile.tpl (TARGET_FLAGS_TO_PASS): Add $(USER_TARGET_FLAGS).
	* Makefile.in: Regenerated.

Index: Makefile.in
===================================================================
--- Makefile.in	(revision 107414)
+++ Makefile.in	(working copy)
@@ -750,7 +750,8 @@ EXTRA_TARGET_FLAGS = \
 	'RANLIB=$$(RANLIB_FOR_TARGET)' \
 	'WINDRES=$$(WINDRES_FOR_TARGET)'
 
-TARGET_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_TARGET_FLAGS)
+TARGET_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_TARGET_FLAGS) \
+	$(USER_TARGET_FLAGS)
 
 # Flags to pass down to gcc.  gcc builds a library, libgcc.a, so it
 # unfortunately needs the native compiler and the target ar and
Index: Makefile.tpl
===================================================================
--- Makefile.tpl	(revision 107414)
+++ Makefile.tpl	(working copy)
@@ -682,7 +682,8 @@ EXTRA_TARGET_FLAGS = \
 	'RANLIB=$$(RANLIB_FOR_TARGET)' \
 	'WINDRES=$$(WINDRES_FOR_TARGET)'
 
-TARGET_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_TARGET_FLAGS)
+TARGET_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_TARGET_FLAGS) \
+	$(USER_TARGET_FLAGS)
 
 # Flags to pass down to gcc.  gcc builds a library, libgcc.a, so it
 # unfortunately needs the native compiler and the target ar and