[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      |
-----------------------+----------------------

Comment (by noloader):

 Now open in the GCC issue tracker:
 [http://gcc.gnu.org/bugzilla/show_bug.cgi?id=79017 Issue 79017: Old
 PowerMac G5, MacPorts GCC 5.4, C++11 and "std::log2 has not been
 declared"]

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Ticket URL: <https://trac.macports.org/ticket/53226#comment:4>
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