$NetBSD: patch-aa,v 1.2 2014/01/21 10:45:22 wiz Exp $

--- setup.py.orig	2011-02-05 13:55:21.000000000 +0000
+++ setup.py
@@ -5,7 +5,8 @@ import commands
 def pkgconfig(*packages, **kw):
     flag_map = {'-I': 'include_dirs', '-L': 'library_dirs', '-l': 'libraries'}
     for token in commands.getoutput("pkg-config --libs --cflags %s" % ' '.join(packages)).split():
-        kw.setdefault(flag_map.get(token[:2]), []).append(token[2:])
+        if flag_map.has_key(token[:2]):
+            kw.setdefault(flag_map.get(token[:2]), []).append(token[2:])
     return kw
 
 module1 = Extension('libmtag', ['libmtagmodule.c'], **pkgconfig('libmtag'))