[MacPorts] #53226: gcc5 @5.4: error: 'std::log2' has not been declared

[MacPorts]

#53226: gcc5 @5.4: error: 'std::log2' has not been declared
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  Reporter:  noloader  |      Owner:  mww@…
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.3.5
Resolution:            |   Keywords:  powerpc
      Port:  gcc5      |
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Comment (by noloader):

 Thanks Ken. I passed on the libc++ commit to Jonathan Wakely in the GCC
 bug report. It should be very helpful to him if he decides to proceed.

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Ticket URL: <https://trac.macports.org/ticket/53226#comment:6>
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