Description: Make build reproducible.
Author: Chris Lamb <lamby@debian.org>

--- python-caja-1.10.0.orig/docs/Makefile.am
+++ python-caja-1.10.0/docs/Makefile.am
@@ -86,7 +86,7 @@ REFERENCE_DEPS = 	\
 if ENABLE_GTK_DOC
 
 reference/builddate.xml: $(REFERENCE_DEPS)
-	$(PYTHON) -c 'import datetime; print datetime.date.today()' > $@
+	$(PYTHON) -c "import os, time, datetime; print datetime.datetime.utcfromtimestamp(int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))).strftime('%Y-%m-%d')" > $@
 
 $(HTML_FILES): $(REFERENCE_DEPS)
 	xsltproc --nonet --xinclude -o $(BUILDDIR)/html/ \