[MacPorts] #47754: Vigra @1.10.0_6 build fails

[MacPorts]

#47754: Vigra @1.10.0_6 build fails
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  Reporter:  macports@…  |      Owner:  benjamin.seppke@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.3
Resolution:              |   Keywords:
      Port:  vigra       |
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Comment (by mmoll@…):

 I can reproduce the problem, but at the same time I can see that the
 symbol *is* defined in libc++:
 {{{
 > nm /usr/lib/libc++.dylib |c++filt|grep ::widen\(char\)
 000000000000a7e4 unsigned short std::__1::basic_ios<char,
 std::__1::char_traits<char> >::widen(char) const
 000000000000af16 unsigned short std::__1::basic_ios<wchar_t,
 std::__1::char_traits<wchar_t> >::widen(char) const
 }}}

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Ticket URL: <https://trac.macports.org/ticket/47754#comment:3>
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