[MacPorts] #65512: libgcc9 not available on Darwin 18 i386

[MacPorts]

#65512: libgcc9 not available on Darwin 18 i386
----------------------+--------------------
  Reporter:  efji     |      Owner:  (none)
      Type:  defect   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:  wontfix  |   Keywords:
      Port:  gcc9     |
----------------------+--------------------

Comment (by cjones051073):

 You are using out-of-date variants of OpenBLAS.

 {{{
 Oberon ~/Projects/MacPorts/ports > port info OpenBLAS
 OpenBLAS @0.3.20 (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:   cctools, 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
 }}}

 see how gcc(10,11,12) are now the only available gcc variants, and gcc12
 is now the default.

 Uninstall your current OpenLAS, and then reinstall with the latest
 configuration, which will migrate you to using gcc12.

 Then, repeat the above of any other ports you have installed that are
 still using out of date gcc variants.

 This tickit will not be reopened, as at this time there is nothing we can
 do to support gcc9 on the newer (OSX10.11+) systems.

-- 
Ticket URL: <https://trac.macports.org/ticket/65512#comment:4>
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