[git commit] help: Document CROSS=

[Rich Felker]

On Wed, May 09, 2012 at 08:33:53AM +0200, Bernhard Reutner-Fischer wrote:
> On 9 May 2012 05:24, Mike Frysinger <vapier at gentoo.org> wrote:
> > On Tuesday 08 May 2012 13:53:55 Bernhard Reutner-Fischer wrote:
> >> --- a/Makefile.help
> >> +++ b/Makefile.help
> >> -     @echo '  CROSS_COMPILE=         - Override CROSS_COMPILER_PREFIX from
> > .config'
> >> +     @echo '  CROSS_COMPILE= - Override CROSS_COMPILER_PREFIX from .config'
> >> +     @echo '  CROSS=         - Same as CROSS_COMPILE'
> >
> > we dropped all mention of CROSS were possible on purpose.  the only reason
> > CROSS_COMPILE defaults to CROSS is because we didn't want to break peoples
> > build scripts.  if we're going to start adding info again, i say scrub it
> > completely.
> 
> I have reverted this inappropriate commit, let's keep the
> backward-compatible var for a while though.
> Thanks for the review!

Would it be possible to head in the direction of not neeting
CROSS_COMPILE/CROSS? That is, make it so the build system just works
with cross compiling as long as CC is set to the right compiler? I can
think of a few potential issues like the way stripping is performed
that might need a cross-specific tool other than CC, but perhaps
there's a way to use -dumpmachine and determine if the results are
native or cross, and automatically search out the rigth tools based on
that.

BTW this is all just an idea; if it's not feasible, there's no need
for flames.

Rich