[macports-ports] branch master updated (17dab68 -> ef3b497)

[David B. Evans]

David B. Evans (dbevans) pushed a change to branch master
in repository macports-ports.

    from 17dab68  libproxy: Fix a build failure on Sierra with Xcode 9
     new 0a8e92f  mozjs52, gjs: update compiler.blacklist to fix build on 10.9 and earlier
     new ef3b497  libsigcxx3: blacklist compilers that don't support C++14

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 devel/libsigcxx3/Portfile | 4 ++++
 gnome/gjs/Portfile        | 4 ++--
 lang/mozjs52/Portfile     | 3 ++-
 3 files changed, 8 insertions(+), 3 deletions(-)