Description: Add DESTDIR to install-data-local

--- gmap-2010-03-09.orig/Makefile.in
+++ gmap-2010-03-09/Makefile.in
@@ -642,7 +642,7 @@ uninstall-am:
 
 
 install-data-local:
-	$(mkinstalldirs) $(GMAPDB)
+	$(mkinstalldirs) $(DESTDIR)$(GMAPDB)
 
 dist-hook:
 	if test -d CVS; then \
