--- Makefile.orig      2012-11-30 13:59:48.000000000 +0800
+++ Makefile   2012-11-30 14:00:09.000000000 +0800
@@ -44,8 +44,8 @@
 STRIP = strip
 
 LIBS = -lncurses
-CC = gcc
-CFLAGS = -g -O2 -Wall
+CC ?= cc
+CFLAGS ?= -O -pipe
 
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