5da79c86 broke compilation on Mac OS X v10.5 ppc.
Apple's GCC 4.0.1 does not define _CALL_DARWIN. Recognize __APPLE__ again as well.
Signed-off-by: NAndreas F?rber <andreas.faerber@web.de>
Cc: malc <av1474@comtv.ru>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: J?rgen Lock <nox@jelal.kn-bremen.de>
Cc: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Nmalc <av1474@comtv.ru>