have it passed to GCC)
- Moving the usage in configure to the top of it, so you don't have to
wait needlessly
- Silence compiler output during configuration
- Add support for configuring with IBM XLC

patch by (Dan Christiansen <danchr at daimi dot au dot dk>)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@2397 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b