--- Lib/Jpeg/Makefile.orig	Thu Jan 28 08:10:51 1999
+++ Lib/Jpeg/Makefile	Sat Oct  2 05:32:59 1999
@@ -20,7 +20,7 @@
 mandir = $(prefix)/man/man$(manext)
 
 # You may need to adjust these cc options:
-CFLAGS= -O2  -I$(srcdir)
+CFLAGS+= -O2  -I$(srcdir)
 # Generally, we recommend defining any configuration symbols in jconfig.h,
 # NOT via -D switches here.
 # However, any special defines for ansi2knr.c may be included here:
