ffi_darwin.c: Add flag for longdouble return values.

ffi_darwin.c: Add flag for longdouble return values.

2004-09-02  Andreas Tobler  <a.tobler@schweiz.ch>

	* src/powerpc/ffi_darwin.c: Add flag for longdouble return values.
	(ffi_prep_args): Handle longdouble arguments.
	(ffi_prep_cif_machdep): Set flags for longdouble. Calculate space for
	longdouble.
	(ffi_closure_helper_DARWIN): Add closure handling for longdouble.
	* src/powerpc/darwin.S (_ffi_call_DARWIN): Add handling of longdouble
	values.
	* src/powerpc/darwin_closure.S (_ffi_closure_ASM): Likewise.
	* src/types.c: Defined longdouble size and alignment for darwin.

From-SVN: r86992