Hi Roland,
yeah, this is an old recommendation. It might work as well, but now you
don't have to modify any source. Setting project type to DLL and declaring
macros PJ_DLL and PJ_EXPORTING at projects (i.e. pjlib, pjmedia, ...) whose
functions you want to use is enough. Resulting DLL works fine.
Cheers
Vali
----- Original Message -----
From: "Roland Klabunde" <roland.klabunde@xxxxxxxxxx>
To: "pjsip embedded/DSP SIP discussion" <pjsip at lists.pjsip.org>
Sent: Friday, November 16, 2007 2:48 PM
Subject: Re: Building pjsua as DLL
May I ask that again?
Regards
----- Original Message -----
From: "Roland Klabunde" <roland.klabunde@xxxxxxxxxx>
To: "pjsip embedded/DSP SIP discussion" <pjsip at lists.pjsip.org>
Sent: Friday, November 16, 2007 9:20 AM
Subject: Re: Building pjsua as DLL
Hello guys,
I've found a rather old recommendation from Benny in my notes about how to
build a DLL, which I used a year ago or so in order to build DLLs:
<snip>
Next, you'd need to modify pjsua.h. Just below PJ_BEGIN_DECL line, add
this snippet:
#if defined(PJ_EXPORTING) && PJ_EXPORTING!=0
# undef PJ_DECL
# undef PJ_DEF
# define PJ_DECL(T) __declspec(dllexport) T
# define PJ_DEF(T) PJ_DECL(T)
#elif defined(PJ_IMPORTING) && PJ_IMPORTING!=0
# undef PJ_DECL
# undef PJ_DEF
# define PJ_DECL(T) __declspec(dllimport) T
# define PJ_DEF(T) PJ_DECL(T)
#endif
Next, add PJ_EXPORTING=1 macro in the DLL project settings.
Build the project, and you'll get the DLL.
I haven't tried loading the DLL myself, but if you have any problems,
then perhaps you need to implement DllMain() function.
cheers,
-benny
</snip>
Because I already handed over the project to a colleague, who reported
problems to rebuild the DLLs using one of the latest SVN revs: Is the
recommendation above still OK, or did it change? If yes, how is the way to
build a DLL now?
Kind regards
----- Original Message -----
From: "Benny Prijono" <bennylp@xxxxxxxxx>
To: "pjsip embedded/DSP SIP discussion" <pjsip at lists.pjsip.org>
Sent: Friday, November 16, 2007 4:51 AM
Subject: Re: Building pjsua as DLL
Thanks for testing it, Vali. I've committed the change in SVN.
cheers,
-benny
Tom?s Valenta wrote:
> Thank you, it does work! And it is smart. I could not find this because
> Intellisense keep telling me that the source is C++ (__cplusplus defined;
> I was playing only with this branch of macros) but it is compiled as ANSI
> C.
> Strange.
> Cheers
> Vali
>
>
> ----- Original Message -----
> From: "Benny Prijono" <bennylp@xxxxxxxxx>
> To: "pjsip embedded/DSP SIP discussion" <pjsip at lists.pjsip.org>
> Sent: Wednesday, November 14, 2007 4:45 AM
> Subject: Re: Building pjsua as DLL
>
>
> Thanks for the info. Can I ask for a favor to try out these patch?
>
> What if instead of commenting out PJ_EXPORT_DEF_SPECIFIER, we change
> the PJ_DECL_NO_RETURN declaration in pj/config.h to something like this:
>
> #ifdef __cplusplus
> # define PJ_DECL_NO_RETURN(type) PJ_DECL(type) PJ_NORETURN
> #else
> # define PJ_DECL_NO_RETURN(type) PJ_NORETURN PJ_DECL(type)
> #endif
>
> Does this work for your DLL?
>
> If it does, I would prefer this approach since the empty
> PJ_EXPORT_DEF_SPECIFIER may not work for other platforms (such as
> Symbian, which IIRC expects the export specification in the
> definition rather than in declaration).
>
> cheers,
> -benny
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