| # Ensure propagation through many subdirectories each with multiple scopes | |
| cmake_policy(SET CMP0220 NEW) | |
| add_subdirectory(outer) | |
| if(NOT CMAKE_CXX_COMPILER_LOADED) | |
| message(FATAL_ERROR | |
| "enable_language(): language configuration was not propagated up across " | |
| "multiple levels of directories.") | |
| endif() |