kupfer: fix build with py 3.8

srcpkgs/kupfer/patches/py38.patch

@@ -0,0 +1,18 @@
+commit 167c895b28df8f9be619dd5a7ed1e2e3f31dd4d8
+Author: q66 <daniel@octaforge.org>
+Date:   Sun Jan 5 22:23:53 2020 +0100
+
+    Fix waflib on python 3.8
+
+diff --git waflib/Node.py waflib/Node.py
+index c86c4c1..a81779a 100644
+--- waflib/Node.py
++++ waflib/Node.py
+@@ -487,7 +487,6 @@ class Node(object):
+ 					if maxdepth:
+ 						for k in node.ant_iter(accept=accept, maxdepth=maxdepth - 1, pats=npats, dir=dir, src=src, remove=remove):
+ 							yield k
+-		raise StopIteration
+ 
+ 	def ant_glob(self, *k, **kw):
+ 		"""