[MacPorts] #60449: gcc10 missing header <wchar.h>

[MacPorts]

#60449: gcc10 missing header <wchar.h>
-----------------------+----------------------
  Reporter:  haberg-1  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.2
Resolution:            |   Keywords:  catalina
      Port:  gcc10     |
-----------------------+----------------------

Comment (by cjones051073):

 b.t.w. another option is to run your compilation through xcrun. e.g.

 {{{
  > xcrun g++-mp-10 ./test.cpp
 }}}

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Ticket URL: <https://trac.macports.org/ticket/60449#comment:2>
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