Index: Makefile.rules
===================================================================
--- Makefile.rules	(revision 220712)
+++ Makefile.rules	(working copy)
@@ -39,6 +39,8 @@
 
 ifeq ($(findstring DONT_OPTIMIZE,$(MENUSELECT_CFLAGS)),)
     _ASTCFLAGS+=$(OPTIMIZE)
+else
+    _ASTCLFAGS+=-O0
 endif
 
 # shortcuts for common combinations of flags; these must be recursively expanded so that