[doctest] run with "--help" for options
hello from <lib_1_src1.cpp>
hello from <lib_1_src2.cpp>
hello from <lib_2_src.cpp>
hello from <main.cpp>
===============================================================================
[doctest] test cases: 4 | 4 passed | 0 failed | 0 skipped
[doctest] assertions: 0 | 0 passed | 0 failed |
[doctest] Status: SUCCESS!
