On 27 February 2010 08:34, Alex Farber wrote:

Tried this, got error message: cannot find -llibboost_thread.a (added libboost_thread.a to the likker libraries list in the Eclipse CDT project).

You need to add ":libboost_thread.a" - with the colon... Eclipse will call the linked with -l:libboost_thread.a

On 27 February 2010 20:08, Alex Farber wrote:

Thank you. This is my command line: g++ -o"MyProgram" ./main.o -l:libboost_thread.a

The result is huge number of messages like: undefined reference to `pthread_key_create'

The same result as I got with this: g++ -static -o"MyProgram" ./main.o -lboost_thread Some problems with static library libboost_thread.a?

Add -lpthread

Sakharuk, Vladimir wrote:

Trying to access positional arguments with sample program bellow:

If I run: "a.out one" Error: unknown option positional Same error I got on "a.out -h one" and "a.out one -h"

If I run: "a.out one two" Error: too many positional options

But "a.out -h works" Thanks \/.

namespace po=boost::program_options; po::options_description cmds("Options"); cmds.add_options() ("help,h", "output help message");

po::positional_options_description positional; positional.add("positional", 1);

po::variables_map vm; po::parsed_options parsed = po::command_line_parser(argc, argv).options(cmds).positional(positional).run();

Per documentation, this code only makes the first positional option be treated as option named 'positional'. You still need to define such an option inside an options_description object, since otherwise the library will have no idea what type it has and what to do with it. Does this help? - Volodya