$OpenBSD: patch-Makefile_PL,v 1.2 2019/01/08 16:27:08 bluhm Exp $

Index: Makefile.PL
--- Makefile.PL.orig
+++ Makefile.PL
@@ -22,7 +22,7 @@ if ($Config::Config{myuname} =~ /darwin/i) {
 } elsif ($Config::Config{myuname} =~ /sunos|solaris/i) {
   # Any SunStudio flags?
 } else {
-  cc_optimize_flags('-O2 -g -Wall -Werror');
+  cc_optimize_flags('-O2 -g -Wall -Werror -Wno-ignored-optimization-argument');
 }
 
 auto_install();
