Patch #102588 / PEP 229:
    Tweak the configure script to build setup.cfg
diff --git a/configure.in b/configure.in
index 8e9d83c..3d57626 100644
--- a/configure.in
+++ b/configure.in
@@ -1433,7 +1433,7 @@
 fi
 
 # generate output files
-AC_OUTPUT(Makefile \
+AC_OUTPUT(Makefile setup.cfg \
  Objects/Makefile \
  Parser/Makefile \
  Grammar/Makefile \