[PATCH] sh: Move CPU subtype configuration to its own Kconfig
[linux-2.6.git] / Makefile
index 34d6176dfcba97500007528712bc604981d5e056..c3a727126d26723a66f6db7e078c278c692987fe 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -263,6 +263,13 @@ export quiet Q KBUILD_VERBOSE
 # cc support functions to be used (only) in arch/$(ARCH)/Makefile
 # See documentation in Documentation/kbuild/makefiles.txt
 
+# as-option
+# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,)
+
+as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \
+            -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \
+            else echo "$(2)"; fi ;)
+
 # cc-option
 # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)