MinGW-w64 is a compiler suite for Windows based on the GNU tool chain. It includes a GCC compiler and related tools for compiling C and C++ applications for Windows. C and C++ applications compiled with MinGW-w64 GCC can be called from MATLAB using MEX. This GCC compiler can also be helpful for other MathWorks products that require a C or C++ compiler.

Instructions for R2015b, R2016a, R2016b, and R2017a:
Complete the workaround instructions in the Bug Report, then follow the instructions, below, for R2017b and later.

Instructions for R2017b and later:
Select the download button, above, then double click on the file or drag it into the MATLAB Command Window to install.

FAQ: This link provides answers to some frequently asked questions.
//www.tatmou.com/matlabcentral/answers/311290-faq-how-do-i-install-the-mingw-compiler#answer_242526?s_tid=prof_contriblnk

This Add-On installs one of the following versions of MinGW GCC based on your version of MATLAB:
MATLAB version__________MinGW version__For more information
R2015b through R2017a____GCC 4.9.2_____http://tdm-gcc.tdragon.net
R2017b and R2018a_______GCC 5.3______http://mingw-w64.org
R2018b and later__________GCC 6.3______http://mingw-w64.org

See additional information on installing this compiler at:
//www.tatmou.com/help/matlab/matlab_external/install-mingw-support-package.html

Learn more about other compilers supported by MathWorks Products at:
//www.tatmou.com/support/requirements/supported-compilers.html

If you are having difficulty installing, please contact Technical Support or see MATLAB Answers:
//www.tatmou.com/support/contact_us.html
//www.tatmou.com/matlabcentral/answers/?term=mingw