[MacPorts] #65969: Add port for gccgo - a Golang compiler based on gcc

[MacPorts]

#65969: Add port for gccgo - a Golang compiler based on gcc
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  Reporter:  iMacker2020  |      Owner:  (none)
      Type:  request      |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  gcc go golang
      Port:               |
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Comment (by barracuda156):

 Replying to [comment:1 cooljeanius]:
 > gccgo doesn't work on macOS, unfortunately:
 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46986

 As for the latest update, compiler itself may build, but runtime is not
 properly supported:
 https://github.com/golang/go/issues/22885#issuecomment-1822581110

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Ticket URL: <https://trac.macports.org/ticket/65969#comment:2>
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