[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
----------------------+--------------------
  Reporter:  cgilles  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.4
Resolution:           |   Keywords:
      Port:  gmp      |
----------------------+--------------------

Comment (by kencu):

 Not certain what we are going to do here. Might have to build the
 universal version on the arm64 machine, and let the Intel systems download
 it.

 This is another one that tries to run test software during the
 configuration and/or build, and that doesn't work on an Intel system.

 {{{
 87      configure:5940: /usr/bin/clang
 -isysroot/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk
 -arch arm64 -O2 -pedantic -fomit-frame-pointer -m64
 -I/opt/digikam.org.arm64/include conftest.c >&5
 88      configure:5943: $? = 0
 89      configure:5948: ./a.out || ./b.out || ./a.exe || ./a_out.exe ||
 ./conftest
 90      ./configure: line 5949: ./a.out: Bad CPU type in executable
 }}}

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Ticket URL: <https://trac.macports.org/ticket/62173#comment:4>
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