Description: clean python cache directory
Forwarded: https://github.com/AdaCore/gprbuild/pull/91
Author: Nicolas Boulenguez <nicolas@debian.org>

--- a/doc/Makefile
+++ b/doc/Makefile
@@ -38,7 +38,8 @@
 		$(BUILDDIR)/pdf \
 		$(BUILDDIR)/txt \
 		$(BUILDDIR)/info \
-		$(BUILDDIR)/doctrees
+		$(BUILDDIR)/doctrees \
+		share/__pycache__
 
 html: force
 	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html