To download MinGW-w64 5.3.0, you should use official mirrors to ensure the integrity of the binaries.
Essential for low-level Windows programming and certain security applications. Installation Guide for Windows mingw-w64 5.3 download
Since version 5.3 is the officially supported compiler for specific MATLAB versions (like 2017b), MathWorks maintains a dedicated repository for it. MATLAB Support for MinGW-w64 5.3 Key Features of Version 5.3 To download MinGW-w64 5
The primary repository for archived versions. You can find the 5.3.0 personal builds under the "Toolchains targeting Win64" or "Win32" directories. MinGW-w64 5.3.0 Release (SourceForge) To download MinGW-w64 5.3.0
MinGW-w64 5.3 is based on , which introduced several major improvements to the GNU Compiler Collection:
Allows a single installation to target multiple architectures.