--- lua-copas-1.2.1_org/Makefile	2014-06-04 16:39:17.451563827 +0800
+++ lua-copas-1.2.1/Makefile	2014-06-04 16:39:41.115563309 +0800
@@ -1,10 +1,10 @@
 # $Id: Makefile,v 1.3 2007/10/29 22:50:16 carregal Exp $
 
 # Default prefix
-PREFIX = /usr/local
+PREFIX ?= $(DESTDIR)/usr
 
 # System's lua directory (where Lua libraries are installed)
-LUA_DIR= $(PREFIX)/share/lua/5.1
+LUA_DIR= $(PREFIX)/lib/lua
 
 install:
 	mkdir -p $(LUA_DIR)/copas