--- tools/Makefile.in.orig	2014-05-24 19:23:17.169958767 +0800
+++ tools/Makefile.in	2014-05-24 19:23:28.096959808 +0800
@@ -111,7 +111,7 @@ distclean: clean
 install: $(PROGRAMS)
 	list='$(PROGRAMS)'; \
 	for prog in $$list; do \
-	  $(INSTALL_PROGRAM) $$prog $(bindir)/ ; \
+	  $(INSTALL_PROGRAM) $$prog $(DESTDIR)$(bindir)/ ; \
 	done
 
 uninstall: $(PROGRAMS)