[MacPorts] #66331: libgcc9: Error: gcc9 9.5.0 is not supported on Darwin 17 i386

[MacPorts]

#66331: libgcc9: Error: gcc9 9.5.0 is not supported on Darwin 17 i386
---------------------------+------------------------
  Reporter:  WolfgangFahl  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  highsierra
      Port:  libgcc9       |
---------------------------+------------------------

Comment (by WolfgangFahl):

 port info OpenBLAS
 OpenBLAS @0.3.21_1 (math, science)
 Sub-ports:            OpenBLAS-devel
 Variants:             g95, gcc10, gcc11, [+]gcc12, gccdevel, [+]lapack,
 native,
                       universal

 Description:          OpenBLAS is an optimized BLAS library based on
 GotoBLAS2
 Homepage:             https://github.com/xianyi/OpenBLAS

 Build Dependencies:   coreutils, gcc12
 Library Dependencies: libgcc
 Conflicts with:       OpenBLAS-devel
 Platforms:            darwin
 License:              BSD
 Maintainers:          Email: nicos at macports.org, GitHub: NicosPavlov
                       Email: michaelld at macports.org, GitHub: michaelld
                       Policy: openmaintainer

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Ticket URL: <https://trac.macports.org/ticket/66331#comment:4>
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