#150 setjmp.h does not return any setjmp implementation during compilation.

[Юрий Реутов]

setmp.h from MSYS2 i686 mingw-w64 distro does not retun any setjmp implementetion here.
https://github.com/HaxeFoundation/hashlink/blob/f96bdb3a5b45956505b9e12724d989b5f270d9c6/src/jit.c#L3936
Why? msvc preprocessor replaces setjmp with _setjmp which i think gets mapped to _setjmp3