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 6 has been released

v6.0.0: 2018-09-17

Notable changes:

  • C++ __cxa_atexit thanks to Martin Storsjö and Liu Hao
  • Massive additions to support UCRT thanks to Martin Storsjö
  • Sync COM interface headers with Wine development thanks to Jacek Caban
  • WinRT additions thanks to Hugo Beauzée-Luyssen
  • ARM32 and ARM64 additions thanks to Martin Storsjö
  • CRT library api-ms-win-core additions thanks to Martin Storsjö
  • CRT library def file reorganization thanks to Martin Storsjö
And many other additions thanks to, but not limited to (in Alphabetical order)

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

Jacek Caban committed [6c8dfd]

libd3dcompiler.a: Default to d3dcompiler_47.dll to match headers.

LH_Mouse posted a comment on ticket #597

Yes it has been reported here but apparently nobody has been working on it. Sorry for that.

Andrew Ng posted a comment on ticket #597

I have run into this issue just recently, so it is still a problem! I've done some investigation and it appears to be related to the use of std::condition_variable in "lib/Support/Parallel.cpp" of LLVM. In this file, there is a use of notify_one() which is called without the lock for the mutex used in the associated wait(). This is valid code according to the specification of std::condition_variable. However, the default MinGW libstdc++ runtine is built using POSIX threading and thus the std::condition_variable...

Jacek Caban committed [425c3f]

windows.system.idl: Add new file.

Jacek Caban committed [d1980f]

dispatherqueue.h: Add new file.

Jacek Caban committed [b6ecdb]

widl: Updated to current Wine version.

Jacek Caban committed [62b07d]

headers: Updated imported headers to current Wine version.

kljena2050 posted a comment on discussion Open Discussion

Hi, This is kamal, I am new to Mingw. Was trying to cross compile a Hello.cpp application in Linux using below command, compilation goes success but while executing in window if fails with error mentioned: <cmd> mingw64/bin/x86_64-w64-mingw32-g++ Hello.cpp -o Hello.exe</cmd> I copied the Hello.exe to Windows 10 and while executing it getting below error. Error: The application was unable to start correctly (0xc000007b). Please refere that attached file for details. Could any one please help me on...

kljena2050 created ticket #143

Getting execution error, while cross compiling Hello.cpp in Linux for window 64

LH_Mouse committed [65042f]

crt/kernel32.def.in: Remove multimedia timer functions again.