--- Makefile.orig	2014-01-11 19:21:51.000000000 +0800
+++ Makefile	2014-01-11 19:22:23.000000000 +0800
@@ -37,9 +37,8 @@ osd_clock: osd_clock.o
 tar: xosd-$(VERSION).tar.gz
 
 install: all
-	$(INSTALL) osd_clock $(BINDIR)
-	mkdir -p $(MANDIR)/man1 $(MANDIR)/man3
-	$(INSTALL_DATA) osd_clock.1 $(MANDIR)/man1/
+	$(INSTALL) osd_clock $(DESTDIR)$(BINDIR)
+	$(INSTALL_DATA) osd_clock.1 $(DESTDIR)$(MANDIR)/man1/
 
 clean:
 	rm -f *~ *.o *.o.pic osd_clock