--- ./sys/unix/Makefile.src.org	Wed Dec 21 04:43:32 1994
+++ ./sys/unix/Makefile.src	Wed Dec 21 04:50:14 1994
@@ -97,7 +97,7 @@
 
 # by issei(94/6/12)
 #
-CFLAGS = -g -I../include -I/usr/local/X11R6/include
+CFLAGS = -O2 -I../include -I/usr/X11R6/include
 LFLAGS =