[MacPorts] #63418: mkvtoolnix @41.0.0_1: fatal error: static_assert failed due to requirement 'sizeof(char) == 0' "If you want to output boost::optional, include header <boost/optional/optional_io.hpp>"

[MacPorts]

#63418: mkvtoolnix @41.0.0_1: fatal error: static_assert failed due to requirement
'sizeof(char) == 0' "If you want to output boost::optional, include header
<boost/optional/optional_io.hpp>"
---------------------------+------------------------
  Reporter:  sambthompson  |      Owner:  ryandesign
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.1
Resolution:                |   Keywords:  elcapitan
      Port:  mkvtoolnix    |
---------------------------+------------------------

Comment (by sambthompson):

 As #67324 is fixed and closed (thanks to mascguy), this is also fixed and
 can be closed, too. Thanks.

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Ticket URL: <https://trac.macports.org/ticket/63418#comment:5>
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