MATLAB Answers

Jac Billington


Asked by Jac Billington
on 11 Jul 2011

I'm trying to get Libsvm up and running on my PC (windows XP, sp3, 32-bit).

When I run mex setup I get the following.

" mex -setup Please choose your compiler for building external interface (MEX) files: Would you like mex to locate installed compilers [y]/n? y Select a compiler: [1] Lcc-win32 C 2.4.1 in C:\PROGRA~1\MATLAB~1\R2009b\sys\lcc [0] None Compiler: 1 Please verify your choices: Compiler: Lcc-win32 C 2.4.1 Location: C:\PROGRA~1\MATLAB~1\R2009b\sys\lcc Are these correct [y]/n?

this seems to run but then when I try to run make.m I get the following error.

"??? Error using ==> mex at 221 Unable to complete successfully.

Error in ==> make at 5 mex -O -largeArrayDims -I..\ -c ..\svm.cpp"

Can anyone please give me some advice on getting this working, I'm going in circles trying to follow forum threads on this topic.

Many thanks, Jac




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1 Answer

Answer by Friedrich
on 11 Jul 2011


the LCC is a C compiler but like the file extension suggest you are trying to compile C++ code. Please install a supported C++ Compiler and try again.

  1 Comment

Jac Billington
on 11 Jul 2011


thanks for responding so quickly. I downloaded Microsoft Visual C++ 2010 Express and installed this. It's still saying my compiler is " Lcc-win32 C 2.4.1", and not working. I got that from here

I'm running mex -setup adding the following path

"addpath('C:\Program Files\MATLAB2009\R2009b\extern\examples\mex')"

is this where I'm going wrong?

Thank you again. J

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