[MacPorts] #62173: GMP do not compile under BigSur with Inel computer for ARM64 target

[MacPorts]

#62173: GMP do not compile under BigSur with Inel computer for ARM64 target
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  Reporter:  cgilles  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.4
Resolution:           |   Keywords:
      Port:  gmp      |
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Comment (by jmroot):

 True cross-compiling (where the build machine can't run the built
 binaries) has a good chance of not working in general. Sometimes it takes
 extra configure parameters or toolchain files, and sometimes it just can't
 work without a major refactor of the way a project's build system is set
 up. We historically have not actively pursued this, and I wouldn't blame
 any maintainer for not wanting to put in the effort in to support it.
 Universal builds are better supported because the build machine can
 usually run at least one of the archs.

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Ticket URL: <https://trac.macports.org/ticket/62173#comment:6>
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