What I'm looking for is conceptually similar to cygwin - where the "kernel", or better worded - the POSIX API - is provided as a library, not as a separate process that communicates via IPC with the minC "app"'s process. However, unlike cygwin, there should be a static libminc.a (or .lib) that can be used to make standalone binaries that don't need an external DLL like cygwin1.dll. MingW is not an option here as it lacks too many POSIX apis, but it could serve as the base toolchain to compile minc itself, and the programs linking against it, by switching out (or overriding) the default library and include paths. Basically making it use MinC's libc and OS syscall layer, but keeping its WinAPI interface. That would allow cross-compiling minc applications from linux, without having to use a win32 binary toolchain. Alas, the short project description on the website and on the github repo don't address any of these (imo crucial) details.