+#else
+#define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE
+#endif
+
+#ifdef __i386__
+/* libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared library, */
+/* we cannot get the maximum address for brk */
+# define ULIMIT_BREAK_VALUE (32*1024*1024)