[MacPorts] #63147: Darwin 20 not supported for package on M1

[MacPorts]

#63147: Darwin 20 not supported for package on M1
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 Reporter:  TheWrongGuy  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.7.1
 Keywords:               |       Port:
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 Dear all,

 I'm experiencing a strange, imo, bug. When trying to install 'mpich-gcc9
 +fortran' I get the error message 'Failed to fetch mpich-gcc9: mpich-gcc9
 is not supported on darwin 20'. However on the source, so
 'https://packages.macports.org/mpich-gcc9' there is definitly a darwin 20
 named package available. Do you have an idea whats going on there? I'm on
 the latest version on a M1 MacMini.

 Thanks!

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Ticket URL: <https://trac.macports.org/ticket/63147>
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