[jezek2]

I think the issues you're referring to are related to C++ ABI which is inherently incompatible between different compilers (and sometimes versions). This can be sometimes issue for plugins, though sane programs always use C wrappers.

I never had issues with C ABI, calling into other DLLs, creating DLLs, COM objects, or whatever. I fail to see what is fundamentally incompatible here.

[forrestthewoods]

Yes if you go pure C API and write libraries that conform to this and don’t pass owned memory around then sure that works.

MSVC is ABI stable since 2015. Many libraries that distribute pre-compiled binaries that rely on this stability. ~None of them include MinGW binaries in their matrix. (Debug/release X MT/MD).

Being a good citizen means meeting people where they are. Libraries and programs should expect to be integrated into other build systems and environments. I have literally never ever in my career worked in a Windows dev environment that used MinGW. The ~only reason to use MinGW is because you primarily use Linux and you want to half-ass do the bare minimum.

[jezek2]

Interestingly I've never used Visual Studio on Windows (only for a brief time for ARM based PDAs where I could experience the infamous MFC which was okay to me despite the hate).

I've used Borland C++ and Watcom C/C++ back in the day and MinGW after that. Also COM was invented for interoperation between languages/compilers.

Being a good citizen means to not use the inherently unstable C++ ABI directly. You can use C API or even COM for that. Relying on it is cute but it's accidental and it will break in the future. Microsoft can't guarantee that it will stay stable because C++ is always evolving, forcing to break the compatibility.

Open source projects shouldn't depend on proprietary compilers (they can support them, but not as the only option). It just undermines the purpose of it.

The reasons I use MinGW is because it produces better compatible binaries on Windows, allowing me to support all Windows versions from Windows 2000 to latest with a single binary (and sometimes 64bit if there is a need/advantage) and it doesn't require me to bundle dozens of DLLs (or worse, installing them system-wide) and artifically limit the compatibility for no reason.

Breaking the compatibility is hostile to the users who can't or want to always use the latest Windows.