Fix for NameError caught by PyChecker.

(This command seems to be essentially untested; should fix that...)

Lib/distutils/command/config.py

@@ -272,7 +272,7 @@ class config (Command):
         from distutils.ccompiler import CompileError, LinkError
         self._check_compiler()
         try:
-            self._link(body, headers, include_dirs,
+            src, obj, exe = self._link(body, headers, include_dirs,
                                        libraries, library_dirs, lang)
             self.spawn([exe])
             ok = 1