[MacPorts] #57178: pinentry-mac fails to compile with Xcode 10

[MacPorts]

#57178: pinentry-mac fails to compile with Xcode 10
---------------------------+----------------------
  Reporter:  pmetzger      |      Owner:  Ionic
      Type:  defect        |     Status:  assigned
  Priority:  High          |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  xcode10
      Port:  pinentry-mac  |
---------------------------+----------------------

Comment (by Ionic):

 I typically wait until upstream releases a new version (or tags it, for
 that matter), but that normally takes a few months after the initial OS X
 release date.


 Note that the issue is not as critical as it may seem to be, since users
 can just switch to `pinentry` via the provided variants (i.e.,
 `-pinentry_mac+pinentry`) if they need to. It's just the default selection
 that might be unfit due to newer OS/toolchain versions.

-- 
Ticket URL: <https://trac.macports.org/ticket/57178#comment:9>
MacPorts <https://www.macports.org/>
Ports system for macOS