mn10300: only add -mmem-funcs to KBUILD_CFLAGS if gcc supports it
It seems the current (gcc 4.6.3) no longer provides this so make it
conditional.
As reported by Tony before, the mn10300 architecture cross-compiles with
gcc-4.6.3 if -mmem-funcs is not added to KBUILD_CFLAGS.
Reported-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/mn10300/Makefile b/arch/mn10300/Makefile
index 33188b6..a3d0fef 100644
--- a/arch/mn10300/Makefile
+++ b/arch/mn10300/Makefile
@@ -26,7 +26,7 @@
PROCESSOR := unset
UNIT := unset
-KBUILD_CFLAGS += -mam33 -mmem-funcs -DCPU=AM33
+KBUILD_CFLAGS += -mam33 -DCPU=AM33 $(call cc-option,-mmem-funcs,)
KBUILD_AFLAGS += -mam33 -DCPU=AM33
ifeq ($(CONFIG_MN10300_CURRENT_IN_E2),y)