--- src/Makefile.in.orig	2014-05-24 19:19:02.324979295 +0800
+++ src/Makefile.in	2014-05-24 19:19:51.359974924 +0800
@@ -168,23 +168,23 @@ distclean: clean
 	/bin/rm -f Makefile
 
 install: $(LIB_DIR)/$(LIB_SHARED) $(LIB_DIR)/$(LIB_STATIC)
-	$(top_srcdir)/mkinstalldirs $(bindir)
-	$(top_srcdir)/mkinstalldirs $(libdir)
-	$(top_srcdir)/mkinstalldirs $(includedir)
-	$(top_srcdir)/mkinstalldirs $(includedir)/serdisplib
+	$(top_srcdir)/mkinstalldirs $(DESTDIR)$(bindir)
+	$(top_srcdir)/mkinstalldirs $(DESTDIR)$(libdir)
+	$(top_srcdir)/mkinstalldirs $(DESTDIR)$(includedir)
+	$(top_srcdir)/mkinstalldirs $(DESTDIR)$(includedir)/serdisplib
 	
-	$(INSTALL_PROGRAM) $(PROGRAMS) $(bindir)/
-	$(INSTALL_PROGRAM) $(LIB_DIR)/$(LIB_SHARED) $(libdir)/
-	$(INSTALL_DATA) $(LIB_DIR)/$(LIB_STATIC) $(libdir)/
+	$(INSTALL_PROGRAM) $(PROGRAMS) $(DESTDIR)$(bindir)/
+	$(INSTALL_PROGRAM) $(LIB_DIR)/$(LIB_SHARED) $(DESTDIR)$(libdir)/
+	$(INSTALL_DATA) $(LIB_DIR)/$(LIB_STATIC) $(DESTDIR)$(libdir)/
 	list='$(LIB_HEADERFILES)'; \
 	for headerfile in $$list; do \
-	  $(INSTALL_DATA) ../include/serdisplib/$$headerfile $(includedir)/serdisplib/ ; \
+	  $(INSTALL_DATA) ../include/serdisplib/$$headerfile $(DESTDIR)$(includedir)/serdisplib/ ; \
 	done
 	if [ -n "$(VERSION_SUBMINOR)" ]  ; then \
-	  cd $(libdir) && $(LN_S) -f $(LIB_SHARED) lib$(LIB_NAME).so.$(VERSION_MAJOR).$(VERSION_MINOR) ; \
+	  cd $(DESTDIR)$(libdir) && $(LN_S) -f $(LIB_SHARED) lib$(LIB_NAME).so.$(VERSION_MAJOR).$(VERSION_MINOR) ; \
 	fi
-	cd $(libdir) && $(LN_S) -f $(LIB_SHARED) lib$(LIB_NAME).so.$(VERSION_MAJOR)
-	cd $(libdir) && $(LN_S) -f lib$(LIB_NAME).so.$(VERSION_MAJOR) lib$(LIB_NAME).so
+	cd $(DESTDIR)$(libdir) && $(LN_S) -f $(LIB_SHARED) lib$(LIB_NAME).so.$(VERSION_MAJOR)
+	cd $(DESTDIR)$(libdir) && $(LN_S) -f lib$(LIB_NAME).so.$(VERSION_MAJOR) lib$(LIB_NAME).so
 
 uninstall:
 	-/bin/rm -f $(libdir)/libserdisp*