| # Enable scanning by default for targets that explicitly use C++ 20. | |
| cmake_policy(SET CMP0155 NEW) | |
| # Force CMAKE_CXX_STANDARD_DEFAULT to be C++ 20. | |
| set(ENV{CXXFLAGS} "$ENV{CXXFLAGS} ${CMAKE_CXX20_STANDARD_COMPILE_OPTION}") | |
| enable_language(CXX) | |
| # Hide any real scanning rule that may be available. | |
| unset(CMAKE_CXX_SCANDEP_SOURCE) | |
| # Create a target that does not explicitly use C++ 20 to verify it works | |
| # without any scanning rule available. | |
| add_executable(cmp0155-new sources/module-use.cxx) |