[MacPorts] #63364: mu @1.6.3: error: no matching constructor for initialization of 'value_type' (aka 'pair<const std::__1::basic_string<char>, Container>')

[MacPorts]

#63364: mu @1.6.3: error: no matching constructor for initialization of
'value_type' (aka 'pair<const std::__1::basic_string<char>, Container>')
-------------------------+--------------------------------
  Reporter:  ryandesign  |      Owner:  ra1nb0w
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:  fixed       |   Keywords:  yosemite elcapitan
      Port:  mu          |
-------------------------+--------------------------------

Comment (by ra1nb0w):

 still fails on 10.10 and 10.11 (these only).
 I write to upstream. For reference https://github.com/djcb/mu/issues/2086

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Ticket URL: <https://trac.macports.org/ticket/63364#comment:4>
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