--- Makefile.orig	Mon Jan 14 00:25:02 2002
+++ Makefile	Mon Jan 14 00:25:17 2002
@@ -1,12 +1,12 @@
 
-CC = gcc
+CC ?= gcc
 
 # Possible platforms are SUN, HPUX, DEC, SGI, AIX, Linux and MSDOS
 # The main definitions are for 32/16 bits and for byte order, the 
 # default is big endian.  You can do -D__BYTE_ORDER 1234 for little
 # endian
 PLATFORM = -DHPUX
-CFLAGS = -g -O2
+CFLAGS += -g -O2
 
 
 tnef2txt: config.h tnef.h tnef.c