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

[Andrew Cagney]

New commits:
commit 1710c576329377859ccd56d4909300438b545eb0
Author: Andrew Cagney <cagney at gnu.org>
Date:   Wed Mar 8 11:53:02 2017 -0500

    building: set PORTINCLUDE once
    
    Recursive make can cause PORTINCLUDE+= to keep adding
    the same argument.