use 'mex -setup' to select compiler

When I typed 'mex -setup' in the Matlab command window, the echo is like this:

MEX 配置为使用 'Microsoft Windows SDK 7.1 (C)' 以进行 C 语言编译。 Warning: The MATLAB C and Fortran API has changed to support MATLAB variables with more than 2^32-1 elements. In the near future you will be required to update your code to utilize the new API. You can find more information about this at: http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.

There are no options for me to choose. What should I do?