[MacPorts] #55773: textmate2 @2.0-rc.4 fails to build when sparsehash @2.0.3 was built with libstdc++

[MacPorts]

#55773: textmate2 @2.0-rc.4 fails to build when sparsehash @2.0.3 was built with
libstdc++
-----------------------------------+-----------------
  Reporter:  ryandesign            |      Owner:
      Type:  defect                |     Status:  new
  Priority:  Normal                |  Milestone:
 Component:  ports                 |    Version:
Resolution:                        |   Keywords:
      Port:  sparsehash textmate2  |
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Comment (by neverpanic):

 Isn't 10.8 the oldest system that still uses libstdc++ by default, so this
 is only an issue for 10.8? If so, I'm not very interested in fixing this
 myself, but I certainly don't mind you doing it either.

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Ticket URL: <https://trac.macports.org/ticket/55773#comment:1>
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