$OpenBSD$

Remove hardcoded -O2

Index: Makefile.system
--- Makefile.system.orig
+++ Makefile.system
@@ -1073,11 +1073,11 @@ FCOMMON_OPT += -g
 endif
 
 ifndef COMMON_OPT
-COMMON_OPT = -O2
+COMMON_OPT =
 endif
 
 ifndef FCOMMON_OPT
-FCOMMON_OPT = -O2 -frecursive
+FCOMMON_OPT = -frecursive
 endif
 
 
