[MacPorts] #65573: libgcc12: build fails for macOS 12.6 and 13 Beta

[MacPorts]

#65573: libgcc12: build fails for macOS 12.6 and 13 Beta
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  Reporter:  adamgao1996  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.7.2
Resolution:               |   Keywords:  monterey
      Port:  libgcc12     |
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Comment (by soapdog):

 Even though the version numbers in the command-line tools in Xcode 14.1 RC
 2 and the downloadable RC 2 CLT-only package from Apple are the same, this
 package will fail to build with the one bundled in Xcode and build
 successfully with the one from the CLT-only package. It is very strange
 since in theory they're the exact same dev tools.

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Ticket URL: <https://trac.macports.org/ticket/65573#comment:20>
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