--- Makefile.orig	Tue Apr  8 14:41:53 2014
+++ Makefile	Tue Apr  8 14:42:35 2014
@@ -7,8 +7,6 @@ CC = gcc
 CFLAGS = -O2 -W -Wno-unused-result
 # CFLAGS = -O -g -W -Wall -Wno-unused-result -ansi -pedantic # -DDEBUG
 
-export CC CFLAGS
-
 VERSION=2.1
 
 all: lib pbm