--- Makefile	2012-02-02 11:49:43.000000000 -0500
+++ ../../Makefile	2012-02-02 11:50:42.000000000 -0500
@@ -14,7 +14,7 @@
 WISH = wish
 
 ### Directory where to install executable files
-INSTALL_DIR = /usr/bin
+INSTALL_DIR = $(DESTDIR)/usr/bin