diff -up xulrunner-24.0/mozilla-release/memory/mozjemalloc/jemalloc.c.jemalloc-ppc xulrunner-24.0/mozilla-release/memory/mozjemalloc/jemalloc.c
--- xulrunner-24.0/mozilla-release/memory/mozjemalloc/jemalloc.c.jemalloc-ppc	2013-09-11 01:15:18.000000000 +0200
+++ xulrunner-24.0/mozilla-release/memory/mozjemalloc/jemalloc.c	2013-09-13 13:36:34.171680919 +0200
@@ -1104,7 +1104,7 @@ static unsigned		ncpus;
  * controlling the malloc behavior are defined as compile-time constants
  * for best performance and cannot be altered at runtime.
  */
-#if !defined(__ia64__) && !defined(__sparc__) && !defined(__mips__)
+#if !defined(__ia64__) && !defined(__sparc__) && !defined(__mips__) && !(defined(__powerpc__))
 #define MALLOC_STATIC_SIZES 1
 #endif