[MacPorts] #62966: gnutls @3.6.15: configure fails -- "arm64-apple not recognized

[MacPorts]

#62966: gnutls @3.6.15: configure fails -- "arm64-apple not recognized
---------------------+--------------------
 Reporter:  mbarbar  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.7.0
 Keywords:           |       Port:  gnutls
---------------------+--------------------
 Hi,

 I'm trying to install gnutls for gnupg2 and `configure` fails:
 {{{
 :info:configure configure: error: /bin/sh build-aux/config.sub arm64
 -apple-darwin20 failed
 :info:configure checking build system type... Invalid configuration `arm64
 -apple-darwin20': machine `arm64-apple' not recognized
 }}}

 I'm on an M1 machine with 11.3.1.

 Full log is attached.

-- 
Ticket URL: <https://trac.macports.org/ticket/62966>
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