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

[Andrew Cagney]

New commits:
commit 553f7ee85db1716a8c15504b47e3df5975ee5d95
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Jul 20 15:31:15 2018 -0400

    building: directly include more of "virtual.h"'s dependencies