[MacPorts] #60347: p5.28-socket6 @0.290.0: error: use of undeclared identifier 'sv_undef'

[MacPorts]

#60347: p5.28-socket6 @0.290.0: error: use of undeclared identifier 'sv_undef'
----------------------------+--------------------
  Reporter:  SerpentChris   |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.6.2
Resolution:                 |   Keywords:
      Port:  p5.28-socket6  |
----------------------------+--------------------

Comment (by SerpentChris):

 Replying to [comment:1 ryandesign]:
 > We've seen this `use of undeclared identifier 'sv_undef'` error before
 with other perl software; see for example #43112. However the cause may be
 different here.
 >
 > We have binaries of this port built for all versions of macOS, including
 Catalina. So at least we know there was not a general problem building
 this port back when those binaries were built. Do you know why your
 computer is trying to build this port from source rather than downloading
 our binary?

 It's building from source because I told it to in `macports.conf`. I have
 8 cores on my 16 inch MBP, so I wanna use them! :)

 I will try uninstalling everything and starting the build with a clean
 slate.

-- 
Ticket URL: <https://trac.macports.org/ticket/60347#comment:2>
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