| set(oldname "${CMAKE_CURRENT_BINARY_DIR}/input") | |
| set(newname "${CMAKE_CURRENT_BINARY_DIR}/output") | |
| file(WRITE "${oldname}" "") | |
| file(MAKE_DIRECTORY "${newname}") | |
| file(COPY_FILE "${oldname}" "${newname}" RESULT result ONLY_IF_DIFFERENT) | |
| message(STATUS "file(COPY_FILE) failed with result: ${result}") | |
| if(NOT EXISTS "${oldname}") | |
| message(FATAL_ERROR "The old name still does not exist:\n ${oldname}") | |
| endif() |