--- Makefile.orig	2016-06-20 15:08:34 UTC
+++ Makefile
@@ -30,12 +30,12 @@ delbadfiles.o: delbadfiles.c ibsh.h
 	${CC} -c delbadfiles.c
 
 ibsh_install:
-	cp ./ibsh /bin/
-	mkdir /etc/ibsh
-	mkdir /etc/ibsh/cmds
-	mkdir /etc/ibsh/xtns
-	cp ./globals.cmds /etc/ibsh/
-	cp ./globals.xtns /etc/ibsh/
+	cp ./ibsh ${PREFIX}/bin/
+	mkdir ${PREFIX}/etc/ibsh
+	mkdir ${PREFIX}/etc/ibsh/cmds
+	mkdir ${PREFIX}/etc/ibsh/xtns
+	cp ./globals.cmds ${PREFIX}/etc/ibsh/
+	cp ./globals.xtns ${PREFIX}/etc/ibsh/
 
 ibsh_uninstall:
 	rm -rf /etc/ibsh/globals.cmds