1string(TIMESTAMP output "%a;%b")
2message("~${output}~")
3
4list(LENGTH output output_length)
5
6set(expected_output_length 2)
7
8if(NOT output_length EQUAL ${expected_output_length})
9    message(FATAL_ERROR "expected ${expected_output_length} entries in output "
10        "with all specifiers; found ${output_length}")
11endif()
12