Index: Makerules
--- Makerules.orig
+++ Makerules
@@ -151,7 +151,7 @@ ifeq ($(build),debug)
   CFLAGS += -pipe -g
   LDFLAGS += -g
 else ifeq ($(build),release)
-  CFLAGS += -pipe -O2 -DNDEBUG
+  CFLAGS += -DNDEBUG
   LDFLAGS += $(LDREMOVEUNREACH) -Wl,-s
 else ifeq ($(build),small)
   CFLAGS += -pipe -Os -DNDEBUG
