[MacPorts] #64204: R: 4.1.2 fails to build on macOS 12.0.1 on M1 mac

[MacPorts]

#64204: R: 4.1.2 fails to build on macOS 12.0.1 on M1 mac
-----------------------+------------------------
  Reporter:  colmconn  |      Owner:  i0ntempest
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.1
Resolution:            |   Keywords:  arm64
      Port:  R         |
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Changes (by ryandesign):

 * keywords:   => arm64


Comment:

 Could you also attach
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_math_R/R/work/R-4.1.2/config.log?

 We have successful builds on our buildbot on macOS 10.8.x through 12.x on
 x86_64 but failures on macOS 11 and 12 on arm64 so this may be an
 arm64-specific issue.

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Ticket URL: <https://trac.macports.org/ticket/64204#comment:3>
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