configure.ac [...]: Set X86_DARWIN symbol and conditional.

configure.ac [...]: Set X86_DARWIN symbol and conditional.

2006-10-10  Paolo Bonzini  <bonzini@gnu.org>
	    Sandro Tolaini  <tolaini@libero.it>

	* configure.ac [i*86-*-darwin*]: Set X86_DARWIN symbol and
	conditional.
	* configure: Regenerated.
	* Makefile.am (nodist_libffi_la_SOURCES) [X86_DARWIN]: New case.
	(EXTRA_DIST): Add src/x86/darwin.S.
	* Makefile.in: Regenerated.
	* include/Makefile.in: Regenerated.
	* testsuite/Makefile.in: Regenerated.

	* src/x86/ffi.c (ffi_prep_cif_machdep) [X86_DARWIN]: Treat like
	X86_WIN32, and additionally align stack to 16 bytes.
	* src/x86/darwin.S: New, based on sysv.S.
	* src/prep_cif.c (ffi_prep_cif) [X86_DARWIN]: Align > 8-byte structs.

Co-Authored-By: Sandro Tolaini <tolaini@libero.it>
From-SVN: r117602