--- Makefile.orig	1995-04-11 07:46:13 UTC
+++ Makefile
@@ -19,11 +19,13 @@
 
 #CFLAGS =  -g
 
-CFLAGS =  -O
+CFLAGS?=  -O
 LDFLAGS=  -lm
-CC     =  cc
+CC     ?=  cc
 RM     =  /bin/rm -f
 
+CFLAGS+= -DTIMER
+
 OBJS = main.o bitstrm.o buffer.o inits.o inptstrm.o interact.o multplex.o systems.o timecode.o
 
 SRCS = main.c bitstrm.c buffer.c inits.c inptstrm.c interact.c multplex.c systems.c timecode.c