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authorSam Ravnborg <sam@neptun.(none)>2007-10-14 22:21:35 +0200
committerSam Ravnborg <sam@neptun.(none)>2007-10-14 22:21:35 +0200
commita0f97e06a43cf524e616f09e6af3398e1e9c1c5b (patch)
tree2503b24bdbc144aea9ea5bde6ead94b3406eaf98 /arch/um/Makefile-i386
parent9a39e273d4df0560c724c5fe71f6314a0583ca2b (diff)
kbuild: enable 'make CFLAGS=...' to add additional options to CC
The variable CFLAGS 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 CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'arch/um/Makefile-i386')
-rw-r--r--arch/um/Makefile-i3864
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index c9f1c5b24c9..26bc786fc61 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -15,7 +15,7 @@ OBJCOPYFLAGS := -O binary -R .note -R .comment -S
ifeq ("$(origin SUBARCH)", "command line")
ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
-CFLAGS += $(call cc-option,-m32)
+KBUILD_CFLAGS += $(call cc-option,-m32)
AFLAGS += $(call cc-option,-m32)
LINK-y += $(call cc-option,-m32)
UML_OBJCOPYFLAGS += -F $(ELF_FORMAT)
@@ -36,4 +36,4 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
# an unresolved reference.
cflags-y += -ffreestanding
-CFLAGS += $(cflags-y)
+KBUILD_CFLAGS += $(cflags-y)