libraries

Hello! I continue to suffer with the included files and libraries. I can't understand, why there is a following error:

>> mex -IC:\OgreSDK\samples\include -IC:\OgreSDK\include -LC:\OgreSDK\lib OgreAppSource.cpp -l OgreMain_d.lib -l OIS_d.lib

Warning: MEX could not find the library "" specified with -l option. 
         MEX looked for a file with one of the names: 
               .lib 
               lib.lib 
         MEX looked for the library in the following directories: 
               C:\Program Files\Microsoft Visual Studio 9.0\VC\ATLMFC\LIB 
               C:\Program Files\Microsoft Visual Studio 9.0\VC\LIB 
               C:\Program Files\\Microsoft SDKs\Windows\v6.0A\lib 
               C:\Program Files\Microsoft Visual Studio 9.0\SDK\v2.0\lib 
               C:\Program Files\MATLAB\R2010b\extern\lib\win32 
               C:\Program Files\SQLXML 4.0\bin\ 
               C:\Program Files\MATLAB\R2010b\extern\lib\win32\microsoft 
               C:\OgreSDK\lib 

Warning: MEX could not find the library "" specified with -l option. 
         MEX looked for a file with one of the names: 
               .lib 
               lib.lib 
         MEX looked for the library in the following directories: 
               C:\Program Files\Microsoft Visual Studio 9.0\VC\ATLMFC\LIB 
               C:\Program Files\Microsoft Visual Studio 9.0\VC\LIB 
               C:\Program Files\\Microsoft SDKs\Windows\v6.0A\lib 
               C:\Program Files\Microsoft Visual Studio 9.0\SDK\v2.0\lib 
               C:\Program Files\MATLAB\R2010b\extern\lib\win32 
               C:\Program Files\SQLXML 4.0\bin\ 
               C:\Program Files\MATLAB\R2010b\extern\lib\win32\microsoft 
               C:\OgreSDK\lib 

LINK : fatal error LNK1181: cannot open input file 'OgreMain_d.lib' 

    C:\PROGRA~1\MATLAB\R2010B\BIN\MEX.PL: Error: Link of 'OgreAppSource.mexw32' failed. 
??? Error using ==> mex at 208
Unable to complete successfully.

I will be grateful for any help.

Answer 1

[Kaustubha Govind]

I'm sorry, I think I made a mistake in my answer to your previous question - there should be no blankspace between -l and your library name. Also, you don't need to add the .lib extension since MEX does that automatically for you. Try:

>> mex -IC:\OgreSDK\samples\include -IC:\OgreSDK\include -LC:\OgreSDK\lib OgreAppSource.cpp -lOgreMain_d -lOIS_d

[Natalia]

I am running the mex command from the directory where is my source file OgreAppSource.cpp.

Thank you, Kaustubha, but I have faced a new problem

>> mex -IC:\OgreSDK\samples\include -IC:\OgreSDK\include -LC:\OgreSDK\lib OgreAppSource.cpp -lOgreMain_d -lOIS_d

LINK : error LNK2001: unresolved external symbol mexFunction

C:\Users\98AF~1\AppData\Local\Temp\mex_C4W8i8\templib.x : fatal error LNK1120: 1 unresolved externals

C:\PROGRA~1\MATLAB\R2010B\BIN\MEX.PL: Error: Link of 'OgreAppSource.mexw32' failed.

??? Error using ==> mex at 208

Unable to complete successfully.

The code(which I try to make mex)has no problems in visual studio 2008. If it is necessary, I am ready to lay out source codes...

Very,very much grateful

Natalia

[Kaustubha Govind]

Okay, so it appears that OgreAppSource.cpp is not really a MEX-function (remember that a MEX-function has not main(), but a mexFunction()instead) - I am assuming that you build an executable from this file in Visual Studio, which is why it works. But MEX actually produces a DLL-like binary, and needs a different interface. You will need to modify your source code and create a MEX wrapper around it.

[Natalia]

Thank you, many, many :)

Answer 2

[Arnaud Miege]

The error message seems to suggest that mex can't find the file OgreMain_d.lib. Are you sure this file is on your MATLAB path or in your current directory?

HTH,

Arnaud

[Natalia]

Yes, I am sure. The file 'OgreMain_d.lib' is in a folder C:\OgreSDK\lib. I have checked up names.

[Arnaud Miege]

OK, but from which directory are you running the mex command? Shouldn't you have:

>> mex -IC:\OgreSDK\samples\include -IC:\OgreSDK\include -LC:\OgreSDK\lib OgreAppSource.cpp -l C:\OgreSDK\lib\OgreMain_d.lib -l OIS_d.lib

HTH,

Arnaud

[Natalia]

Has changed nothing