doctest/examples/exe_with_static_libs/lib_2_src.cpp

#include <doctest/doctest.h>
DOCTEST_MAKE_STD_HEADERS_CLEAN_FROM_WARNINGS_ON_WALL_BEGIN
#include <iostream>
DOCTEST_MAKE_STD_HEADERS_CLEAN_FROM_WARNINGS_ON_WALL_END

TEST_CASE("asd") { std::cout << "hello from <lib_2_src.cpp>" << std::endl; }