Compiling libdevmapper based application using C++

Compiling libdevmapper based application using C++

[Xyber Blue]

Hello people,

I hope someone have had done this one. I am developing application
that uses libdevmapper for accesing kernel based device mapper. Im
having problem compiling my program which is coded using C++ and it
seems that it can't link to libdevmapper libraries.

Did someone experienced this one? It would be very much help if
someone here can give me some tips on compiling my libdevmapper based
application using C++.

Thanks,
xyber
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Re: Compiling libdevmapper based application using C++

[Bryn M. Reeves]

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Xyber Blue wrote:
> Hello people,
> 
> I hope someone have had done this one. I am developing application
> that uses libdevmapper for accesing kernel based device mapper. Im
> having problem compiling my program which is coded using C++ and it
> seems that it can't link to libdevmapper libraries.
> 
> Did someone experienced this one? It would be very much help if
> someone here can give me some tips on compiling my libdevmapper based
> application using C++.
> 
> Thanks,
> xyber

You'll need to wrap the libdevmapper.h include in the usual extern "C"
block like this:

extern "C" {
	#include "libdevmapper.h"
}

But beyond that I don't know of any specific problems and you didn't
describe what actually goes wrong so it's hard to make a more definite
suggestion.

Kind regards,
Bryn.
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Re: Compiling libdevmapper based application using C++

[Xyber Blue]

Bryn,

Thanks man, it really works. Now I know that's the use of extern C.

Thanks again,
Ervin

On 5/24/07, Bryn M. Reeves <breeves@redhat.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Xyber Blue wrote:
> > Hello people,
> >
> > I hope someone have had done this one. I am developing application
> > that uses libdevmapper for accesing kernel based device mapper. Im
> > having problem compiling my program which is coded using C++ and it
> > seems that it can't link to libdevmapper libraries.
> >
> > Did someone experienced this one? It would be very much help if
> > someone here can give me some tips on compiling my libdevmapper based
> > application using C++.
> >
> > Thanks,
> > xyber
>
> You'll need to wrap the libdevmapper.h include in the usual extern "C"
> block like this:
>
> extern "C" {
>         #include "libdevmapper.h"
> }
>
> But beyond that I don't know of any specific problems and you didn't
> describe what actually goes wrong so it's hard to make a more definite
> suggestion.
>
> Kind regards,
> Bryn.
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.7 (GNU/Linux)
> Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
>
> iD8DBQFGVIj16YSQoMYUY94RAimxAJ9v51hfQ7xh4+NTQTp30sAXu+MvvQCg1U8W
> u+qfat5tIIto+/jwP8cAaWQ=
> =8nrT
> -----END PGP SIGNATURE-----
>
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