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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.
You can also look at the full list of versions.
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:
I was just attempting to use this project for the first time (via msys2). Great work with all you've done! I was compiling TigerVNC and discovered I could get a working winvnc4.exe for Windows 10. However, the same binary on Windows 7 would give a runtime error of "The procedure entry point CreateProcessAsUserA could not be located in the dynamic link library KERNEL32.dll" I tracked this down to the Windows KERNEL32.dll on Windows 10 exports that symbol. However, the KERNEL32.dll on Windows 7 does...
wdm.h: Define DMA_COMPLETION_STATUS.
wdm.h: Define KSYNCHRONIZE_ROUTINE.
sal.h: Add more SAL directives.
wdm.h: Add some power framework definitions.
driverspecs.h: Add more SAL directives.
wdm.h: Add some EX_TIMER definitions.
multimonitor api should be enabled only if WINVER >= 0x0500
crt: update api-ms-win-core-winrt-error-l1-1-1
Cannot build 32-bit LLVM using 8.1.0