find_package(PythonInterp REQUIRED) execute_process( COMMAND ${PYTHON_EXECUTABLE} "${CMAKE_SOURCE_DIR}/script/getSystemString.py" OUTPUT_VARIABLE SYSSTRING OUTPUT_STRIP_TRAILING_WHITESPACE ) set(EXTERNAL_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/../Coati_External") set(EXTERNAL_SRC "${EXTERNAL_ROOT}/src") set(EXTERNAL_BUILD "${EXTERNAL_ROOT}/${SYSSTRING}/${CMAKE_BUILD_TYPE}")