GCC for Windows 64 & 32 bits

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Mingw-w64 is an advancement of the original mingw.org project, created to support the GCC compiler on Windows systems. It has forked it in 2007 in order to provide support for 64 bits and new APIs. It has since then gained widespread use and distribution.

The development and community are very active and welcoming with new contributors every month and simple installers.

Version 5 has been released

v5.0.2: 2017-03-28

initial Release: 2016-10-19

  • Fixes to the __mingw_printf family of functions.
  • DirectX updates from Wine.
  • Various updates to support Windows 7 and 10.
  • Various header typo fixes.

You can also look at the full list of versions.

Headers, Libraries and Runtime

  • More than a million lines of headers are provided, not counting generated ones, and regularly expanded to track new Windows APIs.
  • Everything needed for linking and running your code on Windows.
  • Winpthreads, a pthreads library for C++11 threading support and simple integration with existing project.
  • Winstorecompat, a work-in-progress convenience library that eases conformance with the Windows Store.
  • Better-conforming and faster math support compared to Visual Studio's.


  • gendef: generate Visual Studio .def files from .dll files.
  • genidl: generate .idl files from .dll files.
  • widl: compile .idl files.

Friend projects

Mingw-w64 interacts a lot with other projects in order to help everyone move forward. Contributions have been going to and coming from these projects:

Most Recent Activity

LH_Mouse committed [a52854]

include/stdio: Move macro push/pops outside any `#if...#endif` blocks

Jonathan Yong committed [5a4f14]

crt: _HUGE for UCRT

Jonathan Yong committed [c3b37d]

crt: regenerate Makefile.in

LH_Mouse committed [4ad253]

headers: Add more GUIDs in mfidl.idl.

LH_Mouse committed [69e13b]

include/mfidl: Regenerate header from IDL

Jonathan Yong committed [e66e20]

headers: Add wmsdk.h

Jonathan Yong committed [62b741]

headers: Add more constants to STORAGE_BUS_TYPE.

Jonathan Yong committed [c4616e]

wofutil: new import lib

Jonathan Yong committed [fc4c36]

crt: Regenerate Makefile.in

Jonathan Yong committed [90c998]

headers: Add definitions for Compact OS compression.