Index: comm-release/mozilla/memory/jemalloc/jemalloc.c
===================================================================
--- comm-release.orig/mozilla/memory/jemalloc/jemalloc.c
+++ comm-release/mozilla/memory/jemalloc/jemalloc.c
@@ -1091,7 +1091,9 @@ static unsigned		ncpus;
  * controlling the malloc behavior are defined as compile-time constants
  * for best performance and cannot be altered at runtime.
  */
+#if !(defined(__powerpc__))
 #define MALLOC_STATIC_SIZES 1
+#endif
 
 #ifdef MALLOC_STATIC_SIZES