qtmultimedia FTBFS due to a CMake error in QtFFmpegMediaPluginImpl

-- Running syncqt.cpp for module: QtFFmpegMediaPluginImpl
CMake Error at /home/build/qt/qtbase/cmake/QtPublicWalkLibsHelpers.cmake:275 (message):
  The OpenGLPrivate target is mentioned as a dependency for
  FFmpegMediaPluginImplPrivate, but not declared.
Call Stack (most recent call first):
  /home/build/qt/qtbase/cmake/QtPrlHelpers.cmake:8 (__qt_internal_walk_libs)
  /home/build/qt/qtbase/cmake/QtPrlHelpers.cmake:47 (qt_collect_libs)
  /home/build/qt/qtbase/cmake/QtModuleHelpers.cmake:1214 (qt_generate_prl_file)
  /home/build/qt/qtbase/cmake/QtScopeFinalizerHelpers.cmake:24:EVAL:1 (qt_finalize_module)
  src/plugins/multimedia/ffmpeg/CMakeLists.txt:DEFERRED