--- Makefile.orig	2005-01-07 11:28:47.000000000 +0300
+++ Makefile	2008-08-21 20:27:37.000000000 +0400
@@ -2,9 +2,7 @@
 PACKAGE = o3read
 VERSION = 0.0.4
 
-CC = gcc
-CFLAGS = -Wall -ansi -pedantic -O -g
-PREFIX = /usr/local
+CFLAGS += -Wall -ansi -pedantic
 BINDIR = $(PREFIX)/bin
 MANDIR = $(PREFIX)/man/man1
 DOCS = COPYING INSTALL README TODO ChangeLog filformat.sxw