kbuild: enable 'make AFLAGS=...' to add additional options to AS
The variable AFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.
This patch replace use of AFLAGS with KBUILD_AFLAGS all over
the tree.
Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/arch/um/Makefile-x86_64 b/arch/um/Makefile-x86_64
index 36d2bb5..8836f0d 100644
--- a/arch/um/Makefile-x86_64
+++ b/arch/um/Makefile-x86_64
@@ -12,7 +12,7 @@
KBUILD_CFLAGS += $(_extra_flags_)
CHECKFLAGS += -m64
-AFLAGS += -m64
+KBUILD_AFLAGS += -m64
LDFLAGS += -m elf_x86_64
CPPFLAGS += -m64