[MacPorts] #61483: neon @0.30.2 does not build on Big Sur (11.0.1)

[MacPorts]

#61483: neon    @0.30.2 does not build on Big Sur (11.0.1)
--------------------+--------------------
 Reporter:  AP1010  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.4
 Keywords:  socket  |       Port:  neon
--------------------+--------------------
 configure stage fails with:

 {{{
 ...
 checking for library containing socket... not found
 configure: error: could not find library containing socket
 ...
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61483>
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