if (ade_DIR) # if ade_DIR is set, use ADE-supplied CMake script # to set up variables to the prebuilt ADE find_package(ade 0.1.0) endif() if(NOT TARGET ade) # if ade_DIR is not set, try to use automatically # downloaded one (if there any) include("${CMAKE_CURRENT_LIST_DIR}/DownloadADE.cmake") endif()