1. 14 Oct, 2007 3 commits
    • Sam Ravnborg's avatar
      kbuild: check for wrong use of CFLAGS · 0c53c8e6
      Sam Ravnborg authored
      External modules have in a few cases modifed gcc option
      by modifying CFLAGS. This has never been documented and
      was a bad practice.
      With the check to use KBUILD_CFLAGS it will no longer work
      so we better error out and tell what was wrong as a service
      to the external module users.
      
      This check can be overruled if
      KBUILD_NOPEDANTIC is set to something.
      Addid this possibility may allow older external
      module to build without any code modifications but potentially
      only loosing some un-important gcc options.
      Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
      0c53c8e6
    • 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>
      a0f97e06
    • Sam Ravnborg's avatar
      kbuild: fix up CFLAGS usage · 9a39e273
      Sam Ravnborg authored
      Only in very rare cases is it needed to change CFLAGS
      outside of arch/*/Makefile.
      Fix up all wrong cases - in most cases
      the use of EXTRA_CFLAGS is the only thing needed.
      Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
      9a39e273
  2. 12 Oct, 2007 37 commits