gistfile1.diff

diff --git a/main.c b/main.c
index a93d8cb..72b7331 100644
--- a/main.c
+++ b/main.c
@@ -42,7 +42,8 @@ main(argc, argv, envp)
 #endif
 
     {
-        RUBY_INIT_STACK
+        asm ("pushf; orl $(1 << 18), (%esp); popf;");
+        RUBY_INIT_STACK
         ruby_init();
         ruby_options(argc, argv);
         ruby_run();