GCC for Windows 64 & 32 bits


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

v5.0.3: 2017-11-04

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

Martin Storsjö committed [91459a]

ucrtbase: Make sure that compat symbols aren't autoexported

Anirban Sarkar created ticket #691

Windres not accepting spaces in include directory path.

Martin Storsjö committed [37f99e]

crt: Share shlwapi.def between lib64 and libarm32

Martin Storsjö committed [3e5210]

headers: Avoid producing repeated "static static" in __mingw_static_ovr

Martin Storsjö committed [00467c]

crt: Regenerate Makefile.in

Martin Storsjö committed [d95878]

headers: Avoid using the dllimported versions of Interlocked functions on i386

Martin Storsjö committed [483dda]

crt: Provide compat wrappers for the unprefixed "timezone" and "tzname"

niXman committed [987834]


niXman committed [4b1979]


Niyaz Nigmatullin created ticket #690

Slow scanf or printf