[MacPorts] #61431: openal-soft @1.21.0: error: inline declaration of 'PopCount<unsigned long long>' follows non-inline definition

[MacPorts]

#61431: openal-soft @1.21.0: error: inline declaration of 'PopCount<unsigned long
long>' follows non-inline definition
--------------------------+--------------------------------
  Reporter:  thetrial     |      Owner:  ryandesign
      Type:  defect       |     Status:  closed
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.3
Resolution:  fixed        |   Keywords:  elcapitan yosemite
      Port:  openal-soft  |
--------------------------+--------------------------------

Comment (by thetrial):

 I still was not able to build that with the patch file. Can someone tell
 me step by step how to do that? When I follow the steps from the macports
 page I always get the message that a file was not found (line three).

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Ticket URL: <https://trac.macports.org/ticket/61431#comment:26>
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