[MacPorts] #70859: GMP build with GCC, not Clang

[MacPorts]

#70859: GMP build with GCC, not Clang
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  Reporter:  haberg-1  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  ventura
      Port:  gmp       |
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Comment (by kencu):

 Now unfortunately it is currently difficult to build with gcc in MacPorts
 (or HomeBrew I believe) targeting a non-native arch. The gcc compilers
 installed by either package manager only compile for the native arch, and
 current gcc cross-compilers have not been properly set up.

 So there is no way for me to build gmp using gcc on this arm64 Mac as an
 Intel build to test it.

 I would have to build a custom intel cross compiling gcc to do that --
 which is actually not all that hard, just have to do it manually.

 Let me see if any of my Intel machines can run a new enough MacOS to
 demonstrate the problem. They are generally running OpenCore now, but even
 with that, I don't think I can get to a new enough OS to show this issue.

-- 
Ticket URL: <https://trac.macports.org/ticket/70859#comment:5>
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