Re: [boost] [filesystem][1.35] dependency on boost::system

From: Vladimir Prus (ghost_at_[hidden])
Date: 2008-04-07 11:49:35

Alexander Arhipenko wrote:

> Guys, we've got an issue while upgrading to release 1.35 of boost libraries.
> Since boost::filesystem now depends on boost::system, following list of linker
> errors appears ONLY on windows platform (VC9 compiler is used):
> 
> source.obj : error LNK2019: unresolved external symbol
> "__declspec(dllimport) class boost::system::error_category const & __cdecl
> boost::system::get_system_category(void)"
>  (__imp_?get_system_category_at_system@boost@@YAABVerror_category_at_12@XZ)
>  referenced in function
> "public: __thiscall boost::system::error_code::error_code(void)"
> (??0error_code_at_system@boost@@QAE_at_XZ)
> source.obj : error LNK2019: unresolved external symbol
> "__declspec(dllimport) class boost::system::error_category const &
> __cdecl boost::system::get_posix_category(void)"
> (__imp_?get_posix_category_at_system@boost@@YAABVerror_category_at_12@XZ)
> referenced in function
> "void __cdecl boost::system::`dynamic initializer for 'posix_category''(void)"
> (??__Eposix_category_at_system@boost@@YAXXZ)
> ..\bin\bsys\msvc-8.0\debug\threading-multi\use_boost_filesystem.dll :
> fatal error LNK1120: 2 unresolved externals
> 
> In attach there is a minimal project (source.cpp + Jamfile) that
> reproduces the problem and
> a patch that fixes the problem.
> 
> Thanks, waiting for your feedback

Why are you adding <library>/boost/system only for shared link. It seems
to be it should be added to build requirements unconditionally.

- Volodya