[MacPorts] #39699: Unable to build due to unknown compiler version?

[MacPorts]

#39699: Unable to build due to unknown compiler version?
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  Reporter:  frankdmartinez@…  |      Owner:  macports-tickets@…
      Type:  defect            |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  base              |    Version:  2.1.3
Resolution:                    |   Keywords:
      Port:                    |
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Comment (by frankdmartinez@…):

 Replying to [comment:11 ryandesign@…]:
 > However, it is an established MacPorts policy that we do not support
 users installing software in /usr/local, for precisely this reason:
 software (in this case `xcrun`) can find software installed there (in this
 case clang) and this can cause unexpected problems. Please remove
 /usr/local and the problem should go away. For clang 3.3, or any other
 software you have installed in /usr/local that you want to keep, you
 should install it with MacPorts instead.
 It looks like that worked, thanks!

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Ticket URL: <https://trac.macports.org/ticket/39699#comment:12>
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