How to compile mex files using gcc and makefiles

I want to compile C++ code to mex files with gcc using makefiles. Which options do I have to pass to the compiler for the compiled file to work with Matlab?

How do I choose between "-largeArrayDims" and "-compatibleArrayDims"?

[Walter Roberson]

The only reason to use compatibleArrayDims now is if you are stuck using a pretty old release or you are stuck having to interface a 32 bit program that you cannot update.

Answer 1

[Dave Behera]

According to the documentation at

http://www.mathworks.com/help/matlab/ref/mex.html?refresh=true#btw193f-1

-compatibleArrayDims — Uses the MATLAB Version 7.2 array-handling API, which limits arrays to 2^31-1 elements. Default option. -largeArrayDims — Uses the MATLAB large-array-handling API. This API handles arrays with more than 2^31-1 elements. Must use this option when calling LAPACK or BLAS functions.