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/m68k/Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/m68k') diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index aa383a5ea7a..4a1bd44ff16 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -32,18 +32,18 @@ endif CHECKFLAGS += -D__mc68000__ # without -fno-strength-reduce the 53c7xx.c driver fails ;-( -CFLAGS += -pipe -fno-strength-reduce -ffixed-a2 +KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2 # enable processor switch if compiled only for a single cpu ifndef CONFIG_M68020 ifndef CONFIG_M68030 ifndef CONFIG_M68060 -CFLAGS := $(CFLAGS) -m68040 +KBUILD_CFLAGS += -m68040 endif ifndef CONFIG_M68040 -CFLAGS := $(CFLAGS) -m68060 +KBUILD_CFLAGS += -m68060 endif endif @@ -52,7 +52,7 @@ endif ifdef CONFIG_KGDB # If configured for kgdb support, include debugging infos and keep the # frame pointer -CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS)) -g +KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g endif ifndef CONFIG_SUN3 -- cgit v1.2.3