[MacPorts] #57228: upgrading or installing gmp fails with Mac OSX 10.14 Mojave

[MacPorts]

#57228: upgrading or installing gmp fails with Mac OSX 10.14 Mojave
------------------------+---------------------------------
  Reporter:  manulcaux  |      Owner:  MarcusCalhoun-Lopez
      Type:  defect     |     Status:  reopened
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.4
Resolution:             |   Keywords:
      Port:  gmp        |
------------------------+---------------------------------

Comment (by MarcusCalhoun-Lopez):

 The problem seems to be your cctools.\\
 Installing cctools with the variant +llvm50 should not even be possible
 with Xcode 9 or greater.\\
 There is [https://github.com/macports/macports-
 ports/blob/ae129261c20a4ecfa5382fd47aa90a0fba466b0a/devel/cctools/Portfile#L64
 code] that is supposed to prevent it.\\
 You mentioned that you "cleaned all of the installed ports"
 when you updated your OS, but did you reinstall all of the ports as
 required in [https://trac.macports.org/wiki/Migration the migration
 page]?\\
 If not, you will keep running into these kinds of problems.

 Just to test this particular issue, you can use
 [https://guide.macports.org/#using.port.upgrade --enforce-variants] to
 reinstall cctools.

-- 
Ticket URL: <https://trac.macports.org/ticket/57228#comment:8>
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