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

[Andrew Cagney]

New commits:
commit 7c7d9063ca7ff4bc6d50627923bf0d31ff442ea7
Author: Andrew Cagney <cagney at gnu.org>
Date:   Wed May 23 13:54:51 2018 -0400

    building: delete $(USE_SAREF_KERNEL) and -DSAREF_SUPPORTED
    
    C code doesn't test it.