OS X: always copy Cocoa platform plugin into OpenMW bundle

CMakeLists.txt

@@ -710,6 +710,18 @@ endif()
 
 # Apple bundling
 if (APPLE)
+    get_property(QT_COCOA_PLUGIN_PATH TARGET Qt5::QCocoaIntegrationPlugin PROPERTY LOCATION_RELEASE)
+    get_filename_component(QT_COCOA_PLUGIN_DIR "${QT_COCOA_PLUGIN_PATH}" DIRECTORY)
+    get_filename_component(QT_COCOA_PLUGIN_GROUP "${QT_COCOA_PLUGIN_DIR}" NAME)
+    get_filename_component(QT_COCOA_PLUGIN_NAME "${QT_COCOA_PLUGIN_PATH}" NAME)
+    configure_file("${QT_COCOA_PLUGIN_PATH}" "${APP_BUNDLE_DIR}/Contents/MacOS/${QT_COCOA_PLUGIN_GROUP}/${QT_COCOA_PLUGIN_NAME}" COPYONLY)
+
+    if (BUILD_OPENCS)
+      get_property(OPENCS_BUNDLE_NAME_TMP TARGET openmw-cs PROPERTY OUTPUT_NAME)
+      set(OPENCS_BUNDLE_NAME "${OPENCS_BUNDLE_NAME_TMP}.app")
+      configure_file("${QT_COCOA_PLUGIN_PATH}" "${OPENCS_BUNDLE_NAME}/Contents/MacOS/${QT_COCOA_PLUGIN_GROUP}/${QT_COCOA_PLUGIN_NAME}" COPYONLY)
+    endif ()
+
     set(INSTALL_SUBDIR OpenMW)
 
     install(DIRECTORY "${APP_BUNDLE_DIR}" USE_SOURCE_PERMISSIONS DESTINATION "${INSTALL_SUBDIR}" COMPONENT Runtime)
@@ -726,8 +738,6 @@ if (APPLE)
     set(CPACK_PACKAGE_VERSION_PATCH ${OPENMW_VERSION_RELEASE})
 
     set(OPENMW_APP "\${CMAKE_INSTALL_PREFIX}/${INSTALL_SUBDIR}/${APP_BUNDLE_NAME}")
-
-    set(OPENCS_BUNDLE_NAME "OpenMW-CS.app")
     set(OPENCS_APP "\${CMAKE_INSTALL_PREFIX}/${INSTALL_SUBDIR}/${OPENCS_BUNDLE_NAME}")
 
     install(CODE "