get_filename_component — CMake 3.23.0-rc4 Documentation
cmake.org › cmake › helpIf no base directory is provided, the default base directory will be CMAKE_CURRENT_SOURCE_DIR. Paths are returned with forward slashes and have no trailing slashes. If the optional CACHE argument is specified, the result variable is added to the cache. get_filename_component (<var> <FileName> PROGRAM [PROGRAM_ARGS <arg_var>] [CACHE])
CMAKE_CURRENT_LIST_DIR — CMake 3.23.0-rc3 Documentation
cmake.org › variable › CMAKE_CURRENT_LIST_DIRAs CMake processes the listfiles in your project this variable will always be set to the directory where the listfile which is currently being processed ( CMAKE_CURRENT_LIST_FILE) is located. The value has dynamic scope. When CMake starts processing commands in a source file it sets this variable to the directory where this file is located. When CMake finishes processing commands from the file it restores the previous value.