--- Makefile.orig	2014-06-09 11:10:17.744127904 +0800
+++ Makefile	2014-06-09 11:10:39.050126273 +0800
@@ -14,9 +14,9 @@ CFLAGS  += $(INCLUDE)
 all:	$(LIBNAME) vstream-client
 
 install:	$(LIBNAME) vstream-client
-	$(INSTALL) -m 755 vstream-client $(BINDIR)/vstream-client
-	$(INSTALL) -m 644 $(LIBNAME) $(LIBDIR)/$(LIBNAME)
-	$(INSTALL) -m 644 vstream-client.h $(INCDIR)/vstream-client.h
+	$(INSTALL) -m 755 vstream-client $(DESTDIR)$(BINDIR)/vstream-client
+	$(INSTALL) -m 644 $(LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBNAME)
+	$(INSTALL) -m 644 vstream-client.h $(DESTDIR)$(INCDIR)/vstream-client.h
 
 .c.o:
 	$(CC) -c $(CFLAGS) -o $@ $<