--- bitmaps/Makefile.in.orig	2014-08-13 10:06:22.257001172 +0800
+++ bitmaps/Makefile.in	2014-08-13 10:06:44.483997380 +0800
@@ -100,12 +100,12 @@ Makefile: $(top_builddir)/config.status 
 
 install-bitmapDATA: $(bitmap_DATA)
 	$(NORMAL_INSTALL)
-	$(mkinstalldirs) $(bitmapdir)
+	$(mkinstalldirs) $(DESTDIR)$(bitmapdir)
 	list="$(bitmap_DATA)"; for p in $$list; do \
 	  if test -f $(srcdir)/$$p; then \
-	    $(INSTALL_DATA) $(srcdir)/$$p $(bitmapdir)/$$p; \
+	    $(INSTALL_DATA) $(srcdir)/$$p $(DESTDIR)$(bitmapdir)/$$p; \
 	  else if test -f $$p; then \
-	    $(INSTALL_DATA) $$p $(bitmapdir)/$$p; \
+	    $(INSTALL_DATA) $$p $(DESTDIR)$(bitmapdir)/$$p; \
 	  fi; fi; \
 	done