Building mex files on Mac Yosemite OSX.

I have some .C files associated with a toolbox I recently downloaded. My C compiler is XCode 6.2 and I'm running Yosemite OS 10.10.2 on a 64-bit Macbook Pro. My version of Matlab is R_2015A.

mex -setup indicates the Matlab will use XCode as the compiler, but I run into errors when trying to create the mex files.

Here's one example, where I've tried to compile the file "ArrayOperations.c:"

> mex ArrayOperations.c Building with 'Xcode with Clang'.

"Error using mex Undefined symbols for architecture x86_64: "_mexFunction", referenced from: -exported_symbol[s_list] command line option ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)"

Does anyone have insights as to what the problem is?

Answer 1

[Aarti Ghatkesar]

Looks like you are using an unsupported compiler for the mex operation. The supported compiler for Mac OS for MATLAB R2015a is Xcode 5.1+ or 6.

Try to check if the issue occurs while using Xcode 6.0

Check the supported compilers list for MAC for R2015a at the following link: http://www.mathworks.com/support/compilers/R2015a/index.html?sec=maci64