[MacPorts] #48857: gcc ports: support compiling multiple archs (universal)

[MacPorts]

#48857: gcc ports: support compiling multiple archs (universal)
-------------------------------------------------+-------------------------
  Reporter:  devernay                            |      Owner:  macports-
                                                 |  tickets@…
      Type:  enhancement                         |     Status:  assigned
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  gcc43 gcc44 gcc45 gcc46 gcc47       |
  gcc48 gcc49 gcc5 gcc6                          |
-------------------------------------------------+-------------------------

Comment (by kencu):

 Note -- this native support for `-arch` is gcc6+ only. The other older
 gcc's could be ignored now I think.

--
Ticket URL: <https://trac.macports.org/ticket/48857#comment:9>
MacPorts <https://www.macports.org/>
Ports system for macOS