[MacPorts] #60390: lilypond 2.20 cannot be configured

[MacPorts]

#60390: lilypond 2.20 cannot be configured
-----------------------+-----------------------------------------------
  Reporter:  trg818    |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.2
Resolution:            |   Keywords:  Mojave (OS X 10.14.6), Xcode 10.3
      Port:  lilypond  |
-----------------------+-----------------------------------------------

Comment (by mf2k):

 In the future, please add the port maintainer(s) to Cc ({{{port info
 --maintainers lilypond}}}), if any.

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Ticket URL: <https://trac.macports.org/ticket/60390#comment:1>
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