[Swan-commit] Changes to ref refs/heads/master

[Andrew Cagney]

New commits:
commit d0a999e96d887871563be4e03d9c9ef044a850f5
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Jul 20 16:48:08 2018 -0400

    building: add mk/configs.mk that builds a few random config combinations