From 0c0093842af04738f3046a5a2bc8e8538727ca78 Mon Sep 17 00:00:00 2001
From: "R. Belmont" <rb6502@users.noreply.github.com>
Date: Thu, 28 Jul 2011 01:51:24 +0000
Subject: [PATCH] cothreads: fixed to run on PowerPC Mac OS X [R. Belmont]

---
 src/lib/cothread/ppc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib/cothread/ppc.c b/src/lib/cothread/ppc.c
index 637ad426ada..5640ad8d2cb 100644
--- a/src/lib/cothread/ppc.c
+++ b/src/lib/cothread/ppc.c
@@ -13,7 +13,7 @@ floating-point and AltiVec save/restore */
 #include <stdint.h>
 #include <string.h>
 
-#define LIBCO_MPROTECT defined(__unix__) && !defined(LIBCO_PPC_ASM)
+#define LIBCO_MPROTECT (defined(__unix__) && !defined(LIBCO_PPC_ASM)) || defined(SDLMAME_MACOSX)
 
 #if LIBCO_MPROTECT
 	#include <unistd.h>
@@ -46,10 +46,14 @@ static thread_local cothread_t co_active_handle = 0;
 /* Whether function calls are indirect through a descriptor,
 or are directly to function */
 #ifndef LIBCO_PPCDESC
+#ifdef SDLMAME_MACOSX
+	#define LIBCO_PPCDESC 0
+#else
 	#if !defined(_CALL_SYSV) && (defined(_CALL_AIX) || defined(_CALL_AIXDESC) || defined(LIBCO_PPC64))
 		#define LIBCO_PPCDESC 1
 	#endif
 #endif
+#endif
 
 #ifdef LIBCO_PPC_ASM