Merge branch 'fix-cmake-3.x-warnings'

* fix-cmake-3.x-warnings:
  Fix generator expression introduced in previous commit d779b43

CMake/ctkMacroBuildQtPlugin.cmake

@@ -170,7 +170,7 @@ macro(ctkMacroBuildQtPlugin)
     add_custom_command(
       TARGET ${lib_name}
       POST_BUILD
-      COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE> ${DIR_PATH}/../${MY_PLUGIN_DIR}/${CMAKE_SHARED_LIBRARY_PREFIX}${lib_name}${CMAKE_BUILD_TYPE}${CMAKE_SHARED_LIBRARY_SUFFIX}
+      COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:${lib_name}> ${DIR_PATH}/../${MY_PLUGIN_DIR}/${CMAKE_SHARED_LIBRARY_PREFIX}${lib_name}${CMAKE_BUILD_TYPE}${CMAKE_SHARED_LIBRARY_SUFFIX}
       )
   endif()