Hi all,
this patch adds soft float support for libffi-ppc 32-bit. Tested by 
Martin and me on a ppc-405 target. Libffi and libjava, on trunk.
No negative influence on real ppc with fpu.

This patch 'fixes' pr31937.

The patch itself makes sure not to store float/double in the asm part. 
Also, the patch 'changes' the ABI to store float as UINT32 and double as 
UINT64.

Ok for trunk?

Thanks,
Andreas

2007-11-06  Andreas Tobler  <a.tobler@schweiz.org>

	PR libffi/31937
	* src/powerpc/ffi.c (enum): Add __NO_FPRS__, handle soft-float support.
	(ffi_prep_args_SYSV): Handle __NO_FPRS__.
	(ffi_prep_cif_machdep): Likewise.
	(ffi_closure_helper_SYSV): Likewise.
	* src/powerpc/ppc_closure.S: Make sure not to store float/double
	on SOFT_FLOAT archs.