[MacPorts] #65698: libgcc7 depends on later libgcc8, libgcc9, libgcc10

[MacPorts]

#65698: libgcc7 depends on later libgcc8, libgcc9, libgcc10
---------------------------+--------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:  worksforme    |   Keywords:
      Port:  libgcc7       |
---------------------------+--------------------

Comment (by kencu):

 libgcc9, for example, would be needed only if gcc9 is supported. If gcc9
 is not supported, no need for libgcc9.

 ie when/if the jump to libgcc12 happens, 10.4/10.5 could support only gcc7
 and then gcc12 on MacPorts, and there is no need for libgcc8-11 to exist.

-- 
Ticket URL: <https://trac.macports.org/ticket/65698#comment:5>
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