#include <iostream>
#include <boost/program_options.hpp>
namespace po = boost::program_options;

int main (int argc, char *argv[])
{
    // 1st group
    po::options_description groups1 ("Option group 1");
    groups1.add_options()
        ("opt1",     "Short option 1")
        ("option 2", "Short option 2\n^\nAligned here");

    // 2nd group
    po::options_description groups2 ("Option group 2");
    groups2.add_options()
	  ("much_longer_option", po::value<int>(), ("Misaligned description "
												"in 2nd group if option "
												"column length > magic 23 "
												"character limit\n^\n"
												"Aligned here"));


    po::options_description cmdline_args("Overall");
    cmdline_args.add(groups1);
    cmdline_args.add(groups2);
    std::cerr << cmdline_args << "\n";

    return 0;
}