CMAKE_BINARY_DIR ---------------- The path to the top level of the build tree. This is the full path to the top level of the current CMake build tree. For an in-source build, this would be the same as :variable:`CMAKE_SOURCE_DIR`. When run in -P script mode, CMake sets the variables :variable:`CMAKE_BINARY_DIR`, :variable:`CMAKE_SOURCE_DIR`, :variable:`CMAKE_CURRENT_BINARY_DIR` and :variable:`CMAKE_CURRENT_SOURCE_DIR` to the current working directory.