[MacPorts] #27370: Error by building gmock. error: 'NO_CONSTRUCTOR_NEEDED_FOR_STATIC_MUTEX' is not a member of 'testing::internal::Mutex'

[MacPorts]

#27370: Error by building gmock. error: 'NO_CONSTRUCTOR_NEEDED_FOR_STATIC_MUTEX' is
not a member of 'testing::internal::Mutex'
------------------------------+---------------------------------------------
 Reporter:  blueduck@…        |       Owner:  josephholsten@…           
     Type:  defect            |      Status:  new                       
 Priority:  Normal            |   Milestone:                            
Component:  ports             |     Version:  1.9.2                     
 Keywords:                    |        Port:  gmock                     
------------------------------+---------------------------------------------

Comment(by jmr@…):

 Both failure logs appear to be on a system where an older version of gmock
 is already installed (/opt/local/bin/gtest-config exists).

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Ticket URL: <https://trac.macports.org/ticket/27370#comment:5>
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