As reported in the PR, the recent libffi import into the gcc tree caused
a couple of testsuite failures on 64-bit big-endian targets (like SPARC
or PowerPC).

The following patch (mostly by Dominique) fixes them and finally gets us
clean libffi testsuite results.

Tested on sparc-sun-solaris2.11 on mainline and 4.8 branch and
x86_64-unknown-linux-gnu on mainline by myself and powerpc-apple-darwin9
by Dominique.

Ok for mainline and 4.8 branch where those failures represent
regressions from 4.7?

	Rainer


2013-05-15  Dominique d'Humieres  <dominiq@lps.ens.fr>
	    Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR libffi/56033
	* testsuite/libffi.call/cls_struct_va1.c (test_fn): Cast resp to
	ffi_arg *.
	* testsuite/libffi.call/cls_uint_va.c (cls_ret_T_fn): Likewise.
	* testsuite/libffi.call/va_1.c (main): Change res to ffi_arg.
	* testsuite/libffi.call/va_struct1.c (main): Likewise.