fix for #76

git-svn-id: http://svn.macosforge.org/repository/ruby/MacRuby/trunk@563 23306eb0-4c56-4727-a40e-e92c0eb68959

thread.c

@@ -312,11 +312,9 @@ thread_start_func_2(rb_thread_t *th, VALUE *stack_start, VALUE *register_stack_s
     rb_thread_t *main_th;
     VALUE errinfo = Qnil;
 
-#if !WITH_OBJC
     th->machine_stack_start = stack_start;
 #ifdef __ia64
     th->machine_register_stack_start = register_stack_start;
-#endif
 #endif
     thread_debug("thread start: %p\n", th);
 
@@ -1991,12 +1989,10 @@ rb_gc_set_stack_end(VALUE **stack_end_p)
 void
 rb_gc_save_machine_context(rb_thread_t *th)
 {
-#if !WITH_OBJC
     SET_MACHINE_STACK_END(&th->machine_stack_end);
     FLUSH_REGISTER_WINDOWS;
 #ifdef __ia64
     th->machine_register_stack_end = rb_ia64_bsp();
-#endif
 #endif
     setjmp(th->machine_regs);
 }