[MacPorts] #57462: gstreamer1-gst-plugins-base 1.14.4: fails to build under OSX 10.11.6

[MacPorts]

#57462: gstreamer1-gst-plugins-base 1.14.4: fails to build under OSX 10.11.6
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  Reporter:  thetrial                     |      Owner:  (none)
      Type:  defect                       |     Status:  new
  Priority:  Normal                       |  Milestone:
 Component:  ports                        |    Version:  2.5.4
Resolution:                               |   Keywords:  sse2
      Port:  gstreamer1-gst-plugins-base  |
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Comment (by mopihopi):

 I am also encountering this error on macOS 10.12.6 16G1510, Xcode 9.2
 9C40b, upgrading gstreamer1-gst-plugins-base from @1.14.4_0+ogg+universal
 to @1.14.4_1+ogg+universal+x11 (I don't want x11 but the new Portfile
 automatically adds +x11 if +universal is set).

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Ticket URL: <https://trac.macports.org/ticket/57462#comment:7>
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