• Sam Ravnborg's avatar
    kbuild: enable 'make CFLAGS=...' to add additional options to CC · a0f97e06
    Sam Ravnborg authored
    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: default avatarSam Ravnborg <sam@ravnborg.org>
Makefile 20.9 KB