CMake ExternalProject_Add ignore cmake dependency

One of the libraries I use gives developers its warning. I am trying to suppress this warning in ExternalProject_Add

with-Wno-dev

I tried to set it to:

• CMAKE_ARGS
  
  
• CMAKE_CACHE_ARGS
  
  
• CMAKE_CACHE_DEFAULT_ARGS
  
  

This is yaml-cpp.txt.in:

cmake_minimum_required(VERSION 3.5)
project(yaml-cpp-download NONE)

include(ExternalProject)
ExternalProject_Add(tinyxml2
        GIT_REPOSITORY      "git@github.com:jbeder/yaml-cpp.git"
        GIT_TAG             "yaml-cpp-0.5.3"
        SOURCE_DIR          "${CMAKE_BINARY_DIR}/yaml-cpp-src"
        BINARY_DIR          "${CMAKE_BINARY_DIR}/yaml-cpp-build"
        CONFIGURE_COMMAND   "" 
        BUILD_COMMAND       ""
        INSTALL_COMMAND     ""
        TEST_COMMAND        ""
        CMAKE_ARGS          -Wno-dev
        )

      

        
        
        
      

    

And I use it as my main one CMakeLists.txt

like this:

macro(Libraries arg)
    configure_file(CMakeDownloadPackages/${arg}.txt.in
            ${arg}-download/CMakeLists.txt)
    execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
            WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/${arg}-download)
    execute_process(COMMAND ${CMAKE_COMMAND} --build .
            WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/${arg}-download)
    add_subdirectory(${CMAKE_BINARY_DIR}/${arg}-src
            ${CMAKE_BINARY_DIR}/${arg}-build)
endmacro()
Libraries(yaml-cpp)

      

        
        
        
      

    

So far I had time to suppress the warning. How can I suppress developer cmake warnings via ExternalProject_Add?