MATLAB: How to use ‘mbuild’ command to generate C/C++ dll

MATLABmatlab coder

In previous MATLAB Compiler versions I used MBUILD in combination with an .exports-file to compile shared libraries, for example: mbuild myLibrary.c myLibrary.exports

And this worked fine, if I now try to do the same in release R2014a however, I receive the following error: ERROR: Error using mbuild (line 164) Unable to complete successfully. Unknown file extension '.exports'.