use DESTDIR in install-data-hook

diff --git a/Makefile.am b/Makefile.am
index d4da4a9..0d688f1 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -286,7 +286,7 @@ dist_userscript_DATA = \
        tools/themeupdate/themeupdate.py
 
 install-data-hook:
-       chmod +x $(userscriptdir)/themeupdate.py
+       chmod +x $(DESTDIR)$(userscriptdir)/themeupdate.py
 
 dist_desktopfiles_DATA = \
        data/openbox.desktop