gmane.comp.multimedia.ogg.theora.general

Lee Wilson | 16 Apr 02:19

C++ Linker Warnings

Hi,

I have been trying to link to theora static libs I built with VC++ 2005 from libtheora-1.0beta2 and libogg-1.1.3. I get a couple of link warnings, the most significant is:

LINK : warning LNK4098: defaultlib 'libcmt.lib' conflicts with use of other libs; use /NODEFAULTLIB:library

I read up about libcmt.lib and found it is a statically linked library that supports multithreaded programs. It is linked to by default for multithreaded (MT[d]). I am actually using Multithreaded DLL (MD[d]) but by including <stream> in my program the libcmt.lib is automatically linked to. I also read that you cannot mix calls to the old iostream library and new C++ Library.

So I assume theora uses old iostream library, is that correct?

Has anyone else had this problem?

Is there a solution? Note I am using a proprietary game engine, and am not in a position to change it to use old style iostream.

Thanks.

Lee

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Marco Era | 16 Apr 09:29

Re: C++ Linker Warnings

Lee Wilson ha scritto:

I have been trying to link to theora static libs I built with VC++ 2005 from libtheora-1.0beta2 and libogg-1.1.3. I get a couple of link warnings, the most significant is:

LINK : warning LNK4098: defaultlib 'libcmt.lib' conflicts with use of other libs; use /NODEFAULTLIB:library

Just open libtheora project and change the c library option from libcmt to msvcrt; this can be done from menu project > properties > configuration properties > C/C++ > code generation > runtime library.

Then build the libtheora project again and link your program to the result libraries.

Regards.
Marco Era

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