[PATCH] fix cross builds of sim/ppc

[Daniel Jacobowitz]

On Fri, Nov 13, 2009 at 01:55:20PM -0800, Nathan Froyd wrote:
> The patch below fixes a cross build problem with sim/ppc.  sim/ppc
> builds various tools which are then used to generate source files for
> the simulator.  The problem is that as things currently stand, those
> build-machine tools use a config.h generated for the host machine.  This
> mismatch can cause the build to fail, depending on the differences
> between headers.
> 
> The patch fixes this by detecting the cross-compilation case and
> generating a build-config.h file that correctly reflects the
> idiosyncrasies of the build machine.  build-config.h is then included in
> the necessary source files.  The logic is lifted straight from gcc's own
> makefiles.
> 
> Tested with cross to powerpc-eabi for i686-pc-linux-gnu and i686-mingw32
> hosts.  OK to commit?

OK.

-- 
Daniel Jacobowitz
CodeSourcery