--- Makefile.orig	2014-01-11 00:02:15.000000000 +0800
+++ Makefile	2014-01-11 00:02:45.000000000 +0800
@@ -23,10 +23,10 @@ clean:
 distclean: clean
 
 install: yalias
-	mkdir -p $(bindir)
-	install -m755 yalias $(bindir)/yalias
-	mkdir -p $(YALIASDIR)
-	install -m644 system.yaliasrc $(YALIASDIR)/system.yaliasrc
+	mkdir -p $(DESTDIR)$(bindir)
+	install -m755 yalias $(DESTDIR)$(bindir)/yalias
+	mkdir -p $(DESTDIR)$(YALIASDIR)
+	install -m644 system.yaliasrc $(DESTDIR)$(YALIASDIR)/system.yaliasrc
 
 dist: distclean
 	-cd .. && ln -sf $(PACKAGE) $(DISTNAME) && tar --exclude='CVS' --exclude='old' -czhpvf $(DISTNAME).tar.gz $(DISTNAME)
