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

[Andrew Cagney]

New commits:
commit 729d0c953b8508bfa34068a87c02a8a64ce28274
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Sep 29 14:24:30 2017 -0400

    building: fix "jobserver unavailable: using -j1.  Add '+' to parent make rule."
    
    $(MAKE) vs $$(MAKE) grrrr
    
    See dd4d84c4e233bdaed3787636d6e21780f8b5d4e1