build-cpp-and-ld-flags

[BUILD] CPPFLAGS, CFLAGS and LDFLAGS fixes

* Set internal CPPFLAGS as EXTRA_CPPFLAGS, CFLAGS as EXTRA_CFLAGS,
  and LDFLAGS as EXTRA_LDFLAGS
  - Don't overwrite CPPFLAGS, LDLFAGS or CFLAGS from the environment
  - They are irrelevant for BUILD_CC
  - When cross-compiling for a ppc64 host on a non-ppc64 host,
    EXTRA_CFLAGS, which is included in BUILD_CPPFLAGS contains
  -mcall-aixdesc, which does not work on i386 at least
* Use LDFLAGS when linking kexec
  - Append rather than overwrite in purgatory/Makefile

The purpose of these changes is three-fold.

  * CPPFLAGS, CFLAGS and LDFLAGS from the environment really ought
    to be honoured. For one thing;
  * Without these changes, the confgiure taget in
    the toplevel makefile can't work
  * Without these changes, cross compiling does not work -
    well, I can't work out how to get it to work anyway.

Signed-Off-By: Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions