if(WIN32 AND NOT VULKAN_PREBUILT)
set(BUILD_TESTS OFF CACHE BOOL "Build tests" FORCE)
set(BUILD_DEMOS OFF CACHE BOOL "Build demos" FORCE)
set(BUILD_LAYERS OFF CACHE BOOL "Build demos" FORCE)
set(BUILD_VKJSON OFF CACHE BOOL "Build demos" FORCE)
add_subdirectory( Vulkan-LoaderAndValidationLayers )
add_subdirectory( glslang )
endif()