[MacPorts] #54331: libass-0.13.7 not building on macOS 10.12.5 + Xcode 8.

[MacPorts]

#54331: libass-0.13.7 not building on macOS 10.12.5 + Xcode 8.
---------------------+------------------------------
  Reporter:  ssisak  |      Owner:
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.4.1
Resolution:          |   Keywords:  libass universal
      Port:  libass  |
---------------------+------------------------------
Changes (by ssisak):

 * Attachment "config.log" added.

 config.log from failure

--
Ticket URL: <https://trac.macports.org/ticket/54331>
MacPorts <https://www.macports.org/>
Ports system for macOS