--- a/osx.mk	Sun Aug 06 14:41:20 2017 +0200
+++ b/osx.mk	Sun Aug 06 17:02:25 2017 +0200
@@ -1,7 +1,7 @@
 #
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 #
-# Copyright 2016 Olaf Wintermann. All rights reserved.
+# Copyright 2017 Olaf Wintermann. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -31,7 +31,7 @@
 AR = ar
 RM = rm
 
-CFLAGS  = -g -c -Wno-deprecated -Wno-format
+CFLAGS  = -O2 -c -Wno-deprecated -Wno-format
 COFLAGS = -o
 LDFLAGS = 
 LOFLAGS = -o