[MacPorts] #54614: gr-fosphor @20160522_4 crashes when running

[MacPorts]

#54614: gr-fosphor @20160522_4 crashes when running
-------------------------+------------------------
 Reporter:  roythompson  |      Owner:
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.4.1
 Keywords:               |       Port:  gr-fosphor
-------------------------+------------------------
 After installing gr-fosphor on OSX Sierra 10.12.6, it always crashes with
 this message whenever I try to run any GNU Radio flowgraph with a gr-
 fosphor sink.  I have tried completely wiping and re-installing ports from
 scratch several times, and always get this error.

 {{{
 2017-08-15 10:10:41.119 Python[51516:919968] *** Terminating app due to
 uncaught exception 'NSInternalInconsistencyException', reason:
 'nextEventMatchingMask should only be called from the Main Thread!'
 *** First throw call stack:
 (
     0   CoreFoundation                      0x00007fff9ae9f2cb
 __exceptionPreprocess + 171
     1   libobjc.A.dylib                     0x00007fffafcaf48d
 objc_exception_throw + 48
     2   AppKit                              0x00007fff9908ae82
 -[NSApplication(NSEvent)
 _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 4480
     3   libglfw.3.dylib                     0x000000010d8c6c78
 _glfwPlatformPollEvents + 140
     4   libgnuradio-fosphor.3.7.0git.dylib  0x000000010d7be055
 _ZN2gr7fosphor16base_sink_c_impl6workerEv + 119
     5   libboost_thread-mt.dylib            0x0000000108c03ab5
 _ZN5boost12_GLOBAL__N_112thread_proxyEPv + 53
     6   libsystem_pthread.dylib             0x00007fffb07ae93b
 _pthread_body + 180
     7   libsystem_pthread.dylib             0x00007fffb07ae887
 _pthread_body + 0
     8   libsystem_pthread.dylib             0x00007fffb07ae08d
 thread_start + 13
 )
 libc++abi.dylib: terminating with uncaught exception of type NSException
 }}}

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Ticket URL: <https://trac.macports.org/ticket/54614>
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