[MacPorts] #54829: libgcc6 @6.4.0: fatal error: bits/locale_facets.h: No such file or directory

[MacPorts]

#54829: libgcc6 @6.4.0: fatal error: bits/locale_facets.h: No such file or
directory
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  Reporter:  braslau  |      Owner:
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.4.1
Resolution:           |   Keywords:  highsierra
      Port:  libgcc6  |
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Comment (by cjones051073):

 Replying to [comment:6 mojca]:
 > It seemed strange to me indeed that when we continued building manually,
 the build would sometimes succeed.

 No so strange when you read up on how foobarr'ed gcc's build system is in
 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797

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Ticket URL: <https://trac.macports.org/ticket/54829#comment:11>
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