[MacPorts] #42506: sparsehash: configuration error

[MacPorts]

#42506: sparsehash: configuration error
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  Reporter:  jwhowse4@…  |      Owner:  hum@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.2.1
Resolution:              |   Keywords:
      Port:  sparsehash  |
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Comment (by jwhowse4@…):

 Replying to [comment:9 nicos@…]:
 > The issue seems to persist, and it seems to be a gcc vs. clang problem.
 Clang (apple-clang and macports-clang-3.{4, 5, 6} reduces to <functional>,
 while gcc-4.8, 4.9 and 5.0 reduce to <tr1/functional>

 In the build log I attached it appears to me that sparsehash is being
 built with apple-clang.  Am I reading the log wrong?  If I am not
 misreading the log, would mind explaining how this is a gcc vs. clang
 issue when my clang built sparsehash reduces to <tr1/functional>?  This
 may be a silly question, I am just trying to understand the issue.

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Ticket URL: <https://trac.macports.org/ticket/42506#comment:10>
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