Manually remove $(BUILT_SOURCES) since no-dist-built-sources doesnt work
diff --git a/contrib/fb303/py/Makefile.am b/contrib/fb303/py/Makefile.am
index 060495e..706e10a 100644
--- a/contrib/fb303/py/Makefile.am
+++ b/contrib/fb303/py/Makefile.am
@@ -18,6 +18,9 @@
 #
 
 DESTDIR ?= /
+distdir:
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
 EXTRA_DIST = setup.py src
 
 all: