--- vex/Makefile-gcc.orig	2020-03-02 17:34:06 UTC
+++ vex/Makefile-gcc
@@ -44,7 +44,7 @@ CFLAGS := -Ipub -Ipriv \
 ifeq ($(DEBUG),1)
 CFLAGS += -g
 else
-CFLAGS += -O2
+#CFLAGS += -O2
 endif
 
 # These are a separate set of defines that compile for parallel environments