mingw-w64

GCC for Windows 64 & 32 bits

Mingw-w64

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 8 has been released

v8.0.0: 2020-09-18

Notable changes:

  • New Hyper-V headers and libraries by Biswapriyo Nath
  • Many headers updated from Wine by Jacek Caban.
  • ARM math improvements by Martin Storsjö
  • floating point fixes by Liu Hao
  • many *printf compatibility fixes by Liu Hao and Martin Storsjö
  • massive Windows App Store API updates by Steve Lhomme
  • winstorecompat library updates by Martin Storsjö
  • __USE_MINGW_ANSI_STDIO now automatically enabled in C99 and C11 mode when not using UCRT by Pali Rohár
  • wdm and ddk updates by Zebediah Figura
  • UCRT for Windows Store Apps (-lucrtapp) by Martin Storsjö
  • Audioclient and ActivateAudioInterfaceAsync API updates by Liu Hao
  • DirectX SDKs are now always installed
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.

Tools

  • 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

Hernandi Francisco Krammes Filho modified a comment on discussion Open Discussion
12.05.2021

I detect a bug when using ifstream followed by ofstream. Occurs only in Windows 10 (2004 OS build 19041.804) one was a phisical pc other a clean VM over Virtual Box). Problem not happen in Windows 7. Using x86_64-8.1.0-posix-seh-rt_v6-rev0 git-bash 2.30 Compiled using g++ test.cpp -o t.exe Running the file t.exe caused a segmentation fault. #include <iostream> #include <fstream> using namespace std; int CopyAFile( const char* inpath, const char* outpath) { std::ifstream ini_file; std::ofstream out_file;...

Hernandi Francisco Krammes Filho modified a comment on discussion Open Discussion
12.05.2021

I detect a bug when using ifstream followed by ofstream. Occurs only in Windows 10. Not happen in Windows 7. Using x86_64-8.1.0-posix-seh-rt_v6-rev0 git-bash 2.30 Compiled using g++ test.cpp -o t.exe Running the file t.exe caused a segmentation fault. #include <iostream> #include <fstream> using namespace std; int CopyAFile( const char* inpath, const char* outpath) { std::ifstream ini_file; std::ofstream out_file; ini_file.open( inpath ); out_file.open( outpath ); std::cout << "Testing CopyAFile()....

Hernandi Francisco Krammes Filho posted a comment on discussion Open Discussion
12.05.2021

I detect a bug when using ifstream followed by ofstream. Occurs only in Windows 10. Not happen in Windows 7. Using x86_64-8.1.0-posix-seh-rt_v6-rev0 git-bash 2.30 Compiled using g++ test.cpp -o t.exe Running the file t.exe caused a segmentation fault. ========================================== include <iostream></iostream> include <fstream></fstream> using namespace std; int CopyAFile( const char inpath, const char outpath) { std::ifstream ini_file; std::ofstream out_file; ini_file.open( inpath );...

Jonathan Yong posted a comment on merge request #18
11.05.2021

Please send the patch to the public mailing list for review, thanks.

Jonathan Yong posted a comment on merge request #18
11.05.2021

Please send the patch to the public mailing list for review, thanks.

Jonathan Yong posted a comment on merge request #18
11.05.2021

Please send the patch to the public mailing list for review, thanks.

Jonathan Yong committed [caa821]
11.05.2021

adsiid: Active Directory GUIDs

Jonathan Yong committed [750374]
11.05.2021

crt: Regenerate Makefile.in

Jonathan Yong committed [caa821]
11.05.2021

adsiid: Active Directory GUIDs

Jonathan Yong committed [750374]
11.05.2021

crt: Regenerate Makefile.in