--- gcc-4.3.3/boehm-gc/include/private/gc_locks.h.org	2009-12-06 06:46:46.298479999 +0100
+++ gcc-4.3.3/boehm-gc/include/private/gc_locks.h	2009-12-06 06:48:16.038566974 +0100
@@ -178,7 +178,11 @@
 #     endif
 #     define GC_TEST_AND_SET_DEFINED
       inline static void GC_clear(volatile unsigned int *addr) {
+#ifdef __NO_LWSYNC__
+	__asm__ __volatile__("sync" : : : "memory");
+#else
 	__asm__ __volatile__("lwsync" : : : "memory");
+#endif
         *(addr) = 0;
       }
 #     define GC_CLEAR_DEFINED