Index: head/lang/lua53/files/patch-src__Makefile
===================================================================
--- head/lang/lua53/files/patch-src__Makefile
+++ head/lang/lua53/files/patch-src__Makefile
@@ -7,7 +7,7 @@
 -CC= gcc -std=gnu99
 -CFLAGS= -O2 -Wall -Wextra -DLUA_COMPAT_5_2 $(SYSCFLAGS) $(MYCFLAGS)
 +CC?= gcc -std=gnu99
-+CFLAGS?= -O2 -Wall -Wextra -DLUA_COMPAT_5_2 $(SYSCFLAGS) $(MYCFLAGS)
++CFLAGS= -Wall -Wextra -DLUA_COMPAT_5_2 $(SYSCFLAGS) $(MYCFLAGS)
  LDFLAGS= $(SYSLDFLAGS) $(MYLDFLAGS)
  LIBS= -lm $(SYSLIBS) $(MYLIBS)