Hi Gabriel!
Am Montag, 16. Juli 2007 16:27:15 schrieb Gabriel C.:
> I've been trying to compile a static library version of libsigc using MSVS.
> It compiles ok despite a few warnings.
>
> When i try to compile other libs that need libsigc they all complain about
> an undefined reference to functions inside libsigc (eg: error LNK2001:
> unresolved external symbol "__declspec(dllimport) public: __thiscall
> sigc::connection::~connection(void)")
IIRC a colleague of mine had a similar error with compiling our code using
MSVC. However, I might be wrong since he wrote today that his error is
related to std::list, and he discovered the following comment in
sigc++config.h:
// MS VC7 Warning 4251 says that the classes to any member objects in an
// exported class must be also be exported. Some of the libsigc++
// template classes contain std::list members. MS KB article 168958 says
// that it's not possible to export a std::list instantiation due to some
// wacky class nesting issues, so our only options are to ignore the
// warning or to modify libsigc++ to remove the std::list dependency.
// AFAICT, the std::list members are used internally by the library code
// and don't need to be used from the outside, and ignoring the warning
// seems to have no adverse effects, so that seems like a good enough
// solution for now.
So maybe sigc++ needs to get a workaround for this compiler bug.
Ciao, / /
/--/
/ / ANS
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