[MacPorts] #59133: libgcc9 fails to build with Mojave and Xcode 11 latestrelease

[MacPorts]

#59133: libgcc9 fails to build with Mojave and Xcode 11 latestrelease
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  Reporter:  vdoublie  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.0
Resolution:            |   Keywords:
      Port:  libgcc9   |
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Comment (by vdoublie):

 Yup very. there are only. a few major port that I need to run and it is
 the first time I am stomped by libgcc. Most of the port sI found not
 building had an easy "hack" like removing the use_parallel=yes or adding
 use_parallel=no in the Portfile, or forcing a OSX_TARGET ... but I am not
 expert enough to figure out the behaviour of libgcc errors (at least it
 stopped fault segmenting ;) )

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Ticket URL: <https://trac.macports.org/ticket/59133#comment:13>
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