--- db-4.0.14/include/mutex.h.orig	Fri Oct 25 22:22:12 2002
+++ db-4.0.14/include/mutex.h	Fri Oct 25 22:25:10 2002
@@ -483,6 +483,32 @@
  * 'set' mutexes have the value 1, like on Intel; the returned value from
  * MUTEX_SET() is 1 if the mutex previously had its low bit clear, 0 otherwise.
  */
+ 
+#if defined(__APPLE__) && defined(__MACH__) && defined(__ppc__)
+#warning "Using apple specific mutexes" 
+extern int __db_mutex_set __P((volatile tsl_t *));
+void
+__db_mutex_tas_dummy()
+{
+	__asm__	__volatile__("		\n\
+	.globl 	___db_mutex_set		\n\
+___db_mutex_set:			\n\
+	lwarx	r5,0,r3			\n\
+	cmpwi 	r5,0			\n\
+	bne 	fail			\n\
+	addi 	r5,r5,1			\n\
+	stwcx. 	r5,0,r3			\n\
+	beq 	success			\n\
+fail:					\n\
+	li 	r3,0			\n\
+	blr 				\n\
+success:				\n\
+	li 	r3,1			\n\
+	blr");	
+}
+#define	MUTEX_SET(tsl)  __db_mutex_set(tsl)
+#else
+ 
 #define	MUTEX_SET(tsl)	({		\
 	int __one = 1;			\
 	int __r;			\
@@ -499,7 +525,7 @@
 	: "r" (__l), "r" (__one));	\
 	!(__r & 1);			\
 })
-
+#endif
 #define	MUTEX_UNSET(tsl)	(*(tsl) = 0)
 #define	MUTEX_INIT(tsl)		MUTEX_UNSET(tsl)
 #endif