From a0f97e06a43cf524e616f09e6af3398e1e9c1c5b Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 14 Oct 2007 22:21:35 +0200 Subject: 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 --- arch/blackfin/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/blackfin') diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index 20841663270f..52a6ac072851 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -53,7 +53,7 @@ rev-$(CONFIG_BF_REV_0_5) := 0.5 rev-$(CONFIG_BF_REV_NONE) := none rev-$(CONFIG_BF_REV_ANY) := any -CFLAGS += -mcpu=$(cpu-y)-$(rev-y) +KBUILD_CFLAGS += -mcpu=$(cpu-y)-$(rev-y) AFLAGS += -mcpu=$(cpu-y)-$(rev-y) head-y := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o -- cgit v1.2.3