[MacPorts] #69875: libgcc7 build failed (MacOS Big Sur)

[MacPorts]

#69875: libgcc7 build failed (MacOS Big Sur)
----------------------+--------------------
  Reporter:  clegra   |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.9.3
Resolution:           |   Keywords:
      Port:  libgcc7  |
----------------------+--------------------

Comment (by ryandesign):

 emacs depends on gcc13, which depends on libgcc, which depends on
 libgcc13, and that should be it. I do not see gcc7 in its dependency
 chain, at least not on macOS 12 x86_64:

 {{{
 % port rdeps emacs | grep gcc
   gcc13
     gcc_select
     libgcc
       libgcc13
     gcc13-libcxx
 }}}

 emacs only needs gcc when its +nativecomp variant is used, which it is by
 default. You can turn it off by installing with `sudo port install emacs
 -nativecomp`.

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Ticket URL: <https://trac.macports.org/ticket/69875#comment:4>
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