| # No languages are enabled by the enclosing project. | |
| add_library(headers INTERFACE) | |
| target_include_directories(headers INTERFACE | |
| "${CMAKE_CURRENT_SOURCE_DIR}" | |
| "$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_CURRENT_SOURCE_DIR}/cxx>" | |
| "$<$<COMPILE_LANGUAGE:NONE>:${CMAKE_CURRENT_SOURCE_DIR}/none>" | |
| "$<$<COMPILE_LANG_AND_ID:CXX,GNU>:${CMAKE_CURRENT_SOURCE_DIR}/gnu>") |