How do I use the BLAS library provided by MATLAB?

I have noticed that MATLAB provides the BLAS and LAPACK headers among others:

$ ls ${MATLAB_DIR}/extern/include/
blas.h            engine.h    lapack.h           mat.h            mclmcr.h      mex.h           mwutil.h
blascompat32.h    fintrf.h    libmatlbm.mlib     matrix.h         mclmcrrt.h    mwdebug.h       tmwtypes.h
emlrt.h           io64.h      libmatlbmx.mlib    mclcppclass.h    mcr.h         mwservices.h

I would like to use them for my compiled code, so I tried to compile the following:

ex_blas.c

#include <blas.h>

int main()
{
    return 0;
}

with the following command:

$ mex ex_blas.c

But this returns an error:

In file included from ex_blas.c:1:
/Applications/MATLAB_R2009b.app/extern/include/blas.h:51: error: syntax error before ‘*’ token
/Applications/MATLAB_R2009b.app/extern/include/blas.h:62: error: syntax error before ‘*’ token
/Applications/MATLAB_R2009b.app/extern/include/blas.h:77: error: syntax error before ‘*’ token
/Applicati开发者_运维技巧ons/MATLAB_R2009b.app/extern/include/blas.h:92: error: syntax error before ‘*’ token
/Applications/MATLAB_R2009b.app/extern/include/blas.h:103: error: syntax error before ‘ptrdiff_t’
/Applications/MATLAB_R2009b.app/extern/include/blas.h:122: error: syntax error before ‘ptrdiff_t’

Is the blas.h provided by MATLAB usable by a 3rd party application outside of MATLAB? If yes, what is causing the error above?

I'm not sure if it will completely resolve your problems, but you may also have to include stddef.h since that is where the ptrdiff_t type is defined.