Tests/RunCMake/file/COPY_FILE-input-missing.cmake - third_party/github.com/Kitware/CMake - Git at Google

 set(oldname "${CMAKE_CURRENT_BINARY_DIR}/input-missing")
 set(newname "${CMAKE_CURRENT_BINARY_DIR}/output")
 file(COPY_FILE "${oldname}" "${newname}")
	set(oldname "${CMAKE_CURRENT_BINARY_DIR}/input-missing")
	set(newname "${CMAKE_CURRENT_BINARY_DIR}/output")
	file(COPY_FILE "${oldname}" "${newname}")