How to call .c file from matlab script

I have a Matlab script which calls .c file using mex command

mex cSameGroup.c;

On running the script, I'm getting the following error message

Error using mex
No supported compiler or SDK was found. For options, visit 
http://www.mathworks.com/support/compilers/R2015a/win64.html.

I tried using

mex -setup

but got same error. I'm using Matlab R2015a

[James Tursa]

You need to install a supported compiler before you will be able to mex (i.e., compile) that cSameGroup.c file.

[Atinesh Singh]

I have Code Blocks installed on my machine

[James Tursa]

The list on the provided link shows Microsoft SDK 7.1 or Visual C/C++ (various releases) are supported.