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@cma.uio.no> 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: +47 90199552
Room 1039, N.H.Abel's House, UiO | office: +47 22855681
http://folk.uio.no/simenkva/
| simen.kvaal@cma.uio.no
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