--- libecb/ecb.h	2011/08/04 14:34:00	1.62
+++ libecb/ecb.h	2011/08/04 14:37:46	1.63
@@ -84,6 +84,8 @@
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("mfence" : : : "memory")
       #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
       #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
+    #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
+      #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("sync" : : : "memory")
     #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
        || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \
        || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \