[MacPorts] #65518: libgcc9 @9.5.0_2: compilation fails with error "gcc9 9.5.0 is not supported on Darwin 19 i386"

[MacPorts]

#65518: libgcc9 @9.5.0_2: compilation fails with error "gcc9 9.5.0 is not supported
on Darwin 19 i386"
----------------------+---------------------------------------------------
  Reporter:  jfgobin  |      Owner:  cjones051073
      Type:  defect   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.7.2
Resolution:  wontfix  |   Keywords:  gcc9 libgcc9 architecture i386 x86_64
      Port:           |
----------------------+---------------------------------------------------
Changes (by cjones051073):

 * status:  assigned => closed
 * resolution:   => wontfix


Comment:

 This is intentional.

 With the rpath migration upstream has started with gcc 10, 11 and 12,
 older versions can no longer be supported, due to the way we share the
 libgcc runtime across all gcc versions. Upstream have indicated they may
 port support back to some older gcc release, in due time, but until that
 happens we no longer can support gcc9 or older, on OSX 10.11 or newer,
 which are the OS version where gcc now relies on @rpath support.

 You therefore need to migrate to a newer gcc version. If you have any
 ports using gcc9 variants, they will undoubtedly now have migrated to use
 a newer gcc variant by default, and you should uninstall any ports using
 gcc9 and reinstall with a newer variant.

-- 
Ticket URL: <https://trac.macports.org/ticket/65518#comment:3>
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