--- Makefile   Sun Jan 10 00:13:16 1999
+++ Makefile   Sun Jan 10 00:19:40 1999
@@ -3,7 +3,7 @@
 # For systems with GCC (Linux, and others with GCC installed):
 CC = gcc
 LD = gcc
-CFLAGS = -Wall -Wstrict-prototypes -O2
+CFLAGS ?= -Wall -Wstrict-prototypes -O
 
 # For systems with a legacy CC:
 #CC = cc
