id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
4908,Bug in program_options,dix75@…,Vladimir Prus,"In a simple example, I get  errors

OS Linux x64 (Kubuntu 10.10)
g++ 4.5  
Example (boost/libs/program_options/example/first.cpp)

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

#include <iostream>
#include <iterator>
using namespace std;

int main(int ac, char* av[])
{
    try {

        po::options_description desc(""Allowed options"");
        desc.add_options()
            (""help"", ""produce help message"")
            (""compression"", po::value<int>(), ""set compression level"")
        ;

        po::variables_map vm;
        po::store(po::parse_command_line(ac, av, desc), vm);
        po::notify(vm);

        if (vm.count(""help"")) {
            cout << desc << ""\n"";
            return 1;
        }

        if (vm.count(""compression"")) {
            cout << ""Compression level was set to ""
                 << vm[""compression""].as<int>() << "".\n"";
        } else {
            cout << ""Compression level was not set.\n"";
        }
    }
    catch(exception& e) {
        cerr << ""error: "" << e.what() << ""\n"";
        return 1;
    }
    catch(...) {
        cerr << ""Exception of unknown type!\n"";
    }

    return 0;
}

I have[[BR]]
/home/dix/Projects/Test/CppApplication_1/main.cpp:13: undefined reference to `boost::program_options::options_description::m_default_line_length'
/home/dix/Projects/Test/CppApplication_1/main.cpp:13: undefined reference to `boost::program_options::options_description::m_default_line_length'
/home/dix/Projects/Test/CppApplication_1/main.cpp:13: undefined reference to `boost::program_options::options_description::options_description(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int, unsigned int)'
/home/dix/Projects/Test/CppApplication_1/main.cpp:15: undefined reference to `boost::program_options::options_description::add_options()'
/home/dix/Projects/Test/CppApplication_1/main.cpp:15: undefined reference to `boost::program_options::options_description_easy_init::operator()(char const*, char const*)'
/home/dix/Projects/Test/CppApplication_1/main.cpp:17: undefined reference to `boost::program_options::options_description_easy_init::operator()(char const*, boost::program_options::value_semantic const*, char const*)'
/home/dix/Projects/Test/CppApplication_1/main.cpp:19: undefined reference to `boost::program_options::variables_map::variables_map()'
/home/dix/Projects/Test/CppApplication_1/main.cpp:20: undefined reference to `boost::program_options::store(boost::program_options::basic_parsed_options<char> const&, boost::program_options::variables_map&, bool)'
/home/dix/Projects/Test/CppApplication_1/main.cpp:21: undefined reference to `boost::program_options::notify(boost::program_options::variables_map&)'
/home/dix/Projects/Test/CppApplication_1/main.cpp:24: undefined reference to `boost::program_options::operator<<(std::basic_ostream<char, std::char_traits<char> >&, boost::program_options::options_description const&)'
build/Debug/GNU-Linux-x86/main.o: In function `~validation_error':
/usr/local/include/boost/program_options/errors.hpp:153: undefined reference to `vtable for boost::program_options::validation_error'
build/Debug/GNU-Linux-x86/main.o: In function `value_semantic_codecvt_helper':
/usr/local/include/boost/program_options/value_semantic.hpp:91: undefined reference to `vtable for boost::program_options::value_semantic_codecvt_helper<char>'
build/Debug/GNU-Linux-x86/main.o: In function `~value_semantic_codecvt_helper':
/usr/local/include/boost/program_options/value_semantic.hpp:91: undefined reference to `vtable for boost::program_options::value_semantic_codecvt_helper<char>'
build/Debug/GNU-Linux-x86/main.o: In function `boost::program_options::variables_map::operator[](std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const':
/usr/local/include/boost/program_options/variables_map.hpp:150: undefined reference to `boost::program_options::abstract_variables_map::operator[](std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const'
build/Debug/GNU-Linux-x86/main.o: In function `~variables_map':
/usr/local/include/boost/program_options/variables_map.hpp:143: undefined reference to `vtable for boost::program_options::variables_map'
build/Debug/GNU-Linux-x86/main.o: In function `basic_command_line_parser':
/usr/local/include/boost/program_options/detail/parsers.hpp:43: undefined reference to `boost::program_options::detail::cmdline::cmdline(std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)'
build/Debug/GNU-Linux-x86/main.o: In function `boost::program_options::basic_command_line_parser<char>::options(boost::program_options::options_description const&)':
/usr/local/include/boost/program_options/detail/parsers.hpp:51: undefined reference to `boost::program_options::detail::cmdline::set_options_description(boost::program_options::options_description const&)'
build/Debug/GNU-Linux-x86/main.o: In function `boost::program_options::basic_command_line_parser<char>::style(int)':
/usr/local/include/boost/program_options/detail/parsers.hpp:69: undefined reference to `boost::program_options::detail::cmdline::style(int)'
build/Debug/GNU-Linux-x86/main.o: In function `boost::program_options::basic_command_line_parser<char>::extra_parser(boost::function1<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>)':
/usr/local/include/boost/program_options/detail/parsers.hpp:77: undefined reference to `boost::program_options::detail::cmdline::set_additional_parser(boost::function1<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>)'
build/Debug/GNU-Linux-x86/main.o: In function `boost::program_options::basic_command_line_parser<char>::run()':
/usr/local/include/boost/program_options/detail/parsers.hpp:104: undefined reference to `boost::program_options::detail::cmdline::run()'
build/Debug/GNU-Linux-x86/main.o: In function `std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > boost::program_options::to_internal<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >(std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)':
/usr/local/include/boost/program_options/detail/convert.hpp:79: undefined reference to `boost::program_options::to_internal(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
build/Debug/GNU-Linux-x86/main.o:(.rodata._ZTVN5boost15program_options11typed_valueIicEE[vtable for boost::program_options::typed_value<int, char>]+0x38): undefined reference to `boost::program_options::value_semantic_codecvt_helper<char>::parse(boost::any&, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, bool) const'
build/Debug/GNU-Linux-x86/main.o:(.rodata._ZTVN5boost15program_options20invalid_option_valueE[vtable for boost::program_options::invalid_option_value]+0x20): undefined reference to `boost::program_options::validation_error::what() const'
build/Debug/GNU-Linux-x86/main.o:(.rodata._ZTIN5boost15program_options11typed_valueIicEE[typeinfo for boost::program_options::typed_value<int, char>]+0x18): undefined reference to `typeinfo for boost::program_options::value_semantic_codecvt_helper<char>'
build/Debug/GNU-Linux-x86/main.o: In function `boost::program_options::typed_value<int, char>::name() const':
/usr/local/include/boost/program_options/detail/value_semantic.hpp:26: undefined reference to `boost::program_options::arg'
/usr/local/include/boost/program_options/detail/value_semantic.hpp:28: undefined reference to `boost::program_options::arg'
build/Debug/GNU-Linux-x86/main.o: In function `void boost::program_options::validate<int, char>(boost::any&, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, int*, long)':
/usr/local/include/boost/program_options/detail/value_semantic.hpp:85: undefined reference to `boost::program_options::validators::check_first_occurrence(boost::any const&)'
/usr/local/include/boost/program_options/detail/value_semantic.hpp:91: undefined reference to `boost::program_options::invalid_option_value::invalid_option_value(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
build/Debug/GNU-Linux-x86/main.o: In function `std::basic_string<char, std::char_traits<char>, std::allocator<char> > const& boost::program_options::validators::get_single_string<char>(std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, bool)':
/usr/local/include/boost/program_options/detail/value_semantic.hpp:58: undefined reference to `boost::program_options::validation_error::validation_error(boost::program_options::validation_error::kind_t, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/usr/local/include/boost/program_options/detail/value_semantic.hpp:62: undefined reference to `boost::program_options::validation_error::validation_error(boost::program_options::validation_error::kind_t, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
build/Debug/GNU-Linux-x86/main.o: In function `validation_error':
/usr/local/include/boost/program_options/errors.hpp:139: undefined reference to `vtable for boost::program_options::validation_error'",Bugs,reopened,To Be Determined,program_options,Boost 1.45.0,Problem,,,