The ability to suppress this warning message is not available inside MATLAB.
To work around this issue,
1. Open the file named "mex" found in the $MATLABROOT/bin directory, where $MATLABROOT is the MATLAB root directory on your machine, as returned by executing the following at the MATLAB Command Prompt:
matlabroot
2. Navigate to Lines 402-409 of the file. The error message is being printed from the if-statement contained on these lines:
if (need_to_warn == 1)
{
printf("\n");
printf("Warning: You are using gcc version \"%s\". The version\n", version_number);
printf(" currently supported with %s is \"%s\".\n", toolName, versions[2]);
printf(" For a list of currently supported compilers see: \n");
printf(" <http://www.mathworks.com/support/compilers/current_release/\n\n http://www.mathworks.com/support/compilers/current_release/\n\n">);
}
Commenting the above lines of code will suppress the warning in MATLAB.
