[MacPorts] #60167: lilypond 2.20.0: +docs variant will not build (was: lilypond 2.20.0: Failed to configure lilypond)

[MacPorts]

#60167: lilypond 2.20.0: +docs variant will not build
----------------------------+----------------------
  Reporter:  JunTamura1959  |      Owner:  nerdling
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.6.2
Resolution:                 |   Keywords:
      Port:  lilypond       |
----------------------------+----------------------

-- 
Ticket URL: <https://trac.macports.org/ticket/60167#comment:6>
MacPorts <https://www.macports.org/>
Ports system for macOS