--- Makefile.orig	2014-06-26 23:11:34.738471328 +0800
+++ Makefile	2014-06-26 23:11:57.588499251 +0800
@@ -14,10 +14,10 @@ battmond: battmond.c
 	${CC} ${CFLAGS} battmond.c -o battmond -lutil
 
 install: battmond
-	$(INSTALL) -s battmond ${PREFIX}/sbin/battmond
-	$(INSTALL) battmond.sh ${PREFIX}/etc/rc.d/battmond
-	$(INSTALL) -c battmond.1 ${PREFIX}/man/man1/battmond.1
-	gzip -9f ${PREFIX}/man/man1/battmond.1
+	$(INSTALL) -s battmond $(DESTDIR)${PREFIX}/sbin/battmond
+	$(INSTALL) battmond.sh $(DESTDIR)${PREFIX}/etc/rc.d/battmond
+	$(INSTALL) -c battmond.1 $(DESTDIR)${PREFIX}/man/man1/battmond.1
+	gzip -9f $(DESTDIR)${PREFIX}/man/man1/battmond.1
 
 clean:
 	rm -f battmond