Darktable windows build help needed

[heckflosse (Ingo Weyrich)]

@phweyland

I had to add this line:
setvbuf(stdout, NULL, _IONBF, 0);
to avoid buffering.

setbuf(stdout, NULL);

may do that as well

Edit: for reference: Do not buffer stdout when rawtherapee.exe is called from msys2 consol… · Beep6581/RawTherapee@eab7483 · GitHub