--- Makefile.in.orig	Sun Aug 23 21:54:16 1998
+++ Makefile.in	Sun Feb  6 22:12:03 2000
@@ -29,10 +29,11 @@
 PROG = trafshow
 CC = @CC@
 CCOPT = @V_CCOPT@
-INCLS = -I. @V_INCLS@
+INCLS = -I. -I/usr/local/include @V_INCLS@
 DEFS = @DEFS@
 
-CFLAGS = $(CCOPT) $(DEFS) $(INCLS)
+CFLAGS ?= -O2
+CFLAGS += $(DEFS) $(INCLS)
 LDFLAGS = @LDFLAGS@
 LIBS = @LIBS@