Re: [sigc] Compiling libsic++ as a DLL under Windows

[Martin Schulze <martin-ml hippogriff de>]

Hi!

James attached a patch solving these problems to the bugzilla bug  
report. I've just committed to cvs. Please try whether it is working  
for you and confirm! If further modifications of the project file are  
necessary for your needs, please let us know.

Thanks!

Regards,

 Martin


Am 29.07.2004 16:46:24 schrieb(en) Martin Schulze:
> Hi Arnaud!
>
> We would happily accept a patch against cvs. Please modify the  
> affected header files to include sigc++config.h.
> Don't forget that most header files get generated from .m4 files in  
> the macros/ subdirectories; these are the files to modify.
>
> sigc++config.h is also generated by the configure script, so please  
> add the #defines in sigc++config.h.in. We already need a patch that  
> provides (and makes the library use) a pregenerated sigc++config.h in  
> the MSVC project directory. Maybe you can also include this in your  
> patch.
>
> Thanks!
>
>  Martin
>
>
> Am 28.07.2004 11:34:07 schrieb(en) Arnaud Debaene:
> > I am trying to build a Win32 DLL from libsigc++ (see
> > http://lists.gnome.org/archives/libsigc-list/2004-July/msg00027.html
> > for
> > another message on the subject).
> >
> >
> >
> > Among other things, I need to export some symbols from the DLL using
> > the
> > __declspec(dllexport) Microsoft stuff. I have therefore defined a
> > SIC_API macro as suggested by James Lin.
> >
> >
> >
> > The macro is used on several places:
> >
> > connection.h :
> >
> >    l 39 : struct SIGC_API connection
> >
> >
> >
> > trackable.h :
> >
> >    l 35 : struct SIGC_API trackable_callback
> >
> >    l 49 : struct SIGC_API signal_base : public trackable
> >
> >    l 89 : struct SIGC_API trackable
> >
> >
> >
> > signal_base.h :
> >
> >    l 43 : struct SIGC_API signal_impl
> >
> >    l 139 : struct SIGC_API signal_exec
> >
> >    l 195 : struct SIGC_API signal_base : public trackable
> >
> >
> >
> > adaptors\lambda\select.h :
> >
> >    l 335 : SIGC_API extern const lambda<internal::lambda_select1>  
> > _1;
> >
> >              SIGC_API extern const lambda<internal::lambda_select2>
> > _2;
> >
> >              SIGC_API extern const lambda<internal::lambda_select3>
> > _3;
> >
> >              SIGC_API extern const lambda<internal::lambda_select4>
> > _4;
> >
> >              SIGC_API extern const lambda<internal::lambda_select5>
> > _5;
> >
> >              SIGC_API extern const lambda<internal::lambda_select6>
> > _6;
> >
> >              SIGC_API extern const lambda<internal::lambda_select7>
> > _7;
> >
> >
> >
> > Functors\slot_base.h :
> >
> >    l 52 : struct SIGC_API slot_rep : public trackable
> >
> >    l 123 : struct SIGC_API slot_do_bind
> >
> >    l 141 : struct SIGC_API slot_do_unbind
> >
> >    l 206 : class SIGC_API slot_base : public functor_base
> >
> >
> >
> > These are all the symbols I have identified that need to be exported
> > from the DLL (basically, that is everything that is non template).
> >
> >
> >
> > Now, the definition of the SIGC_API macro should be (according to MS
> > standard way of doing things):
> >
> >
> >
> > #ifndef SIGC_API
> >
> > #ifdef _MSC_VER    //Visual C++ only
> >
> > #ifdef SIGC_DLL_EXPORT
> >
> > #define SIGC_API __declspec(dllexport)
> >
> > #else
> >
> > #define SIGC_API __declspec(dllimport)
> >
> > #endif
> >
> > #else
> >
> > #define SIGC_API
> >
> > #endif
> >
> > #endif
> >
> >
> >
> > And SIGC_DLL_EXPORT should be defined in the Visual C++ project file
> > used to build the DLL.
> >
> >
> >
> > My question is: *WHERE* do I put the SIGC_MACRO definition?
> > sigc++_config.h sounds like a good candidate, but it isn't #included
> > by
> > all the headers where this macro is used. In fact there doesn't  
> > seems
> > to
> > be a common header included by everyone where I could put it.  In
> > LibSigC++ 1.2, it was done in sigcconfig.h, but there does not seems
> > to
> > be an equivalent in version 2.
> >
> >
> >
> > Thanks for any idea.
> >
> >
> >
> > PS: Once this problem solved, I could post an updated version of the
> > Visual C++ project, if it may help.
> >
> >
> >
> >
> > _______________________________________________
> > libsigc-list mailing list
> > libsigc-list gnome org
> > http://mail.gnome.org/mailman/listinfo/libsigc-list
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