Re: [Boost-users] Problem with program_options.

From: Andreas Sæbjørnsen (andreas.saebjoernsen_at_[hidden])
Date: 2006-01-06 14:00:21

Hi Simen,
>From what I can see from your example you simply forgot to link towards the
boost library. To link is at best a treacherous bussiness so what you have
to do is:

g++ -o first.x first.cpp -L/path/to/boost/libraries/build/dir/
-lboost_program_options_gcc -I/path/to//boost/includes/

It is not clear to me why the '-L' option is needed, but it is. If this does
not work on your system just write:

export LD_LIBRARY_PATH=/path/to/boost/libraries/build/dir/:$LD_LIBRARY_PATH

then it should work.

Good luck
Andreas Saebjoernsen

On 1/6/06, Simen Kvaal < simen.kvaal_at_[hidden]> wrote:
>
> Dear all,
>
> I have problems with the program_options library. I am using boost 1.33.1
> and gcc 3.2.3, and I notice that there are others with the same problem.
> However, I cannot find a reference to with a solution anywhere.
>
> Stated simply: My programs (even the example programs included with boost
> 1.33.1) using program_options do not link!
>
> For example (gcc 3.2.3):
>
> $ g++ -o first.x first.cpp
> /tmp/ccM0BLhg.o(.text+0x4a): In function `main':
> : undefined reference to
> `boost::program_options::options_description::options_description(std::basic_string<char,
>
> std::char_traits<char>, std::allocator<char> > const&, unsigned int)'
>
> [ ... and a dozen more similar errors ... ]
>
> (As far as I can see, all header files in boost/program_options/ are
> included in boost/program_options.hpp.)
>
> I would appreciate any help with this.
>
>
> Regards,
> Simen Kvaal.
>
>
> --
> ---- Simen Kvaal -- Ph.D student --------+-------------------------
>    Centre of Mathematics for Applications | cell:   [phone]
>          Room 1039, N.H.Abel's House, UiO | office: [phone]
>              http://folk.uio.no/simenkva/ | simen.kvaal_at_[hidden]
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