@Suiseiseki @xianc78

> Which one? MIT released many licenses.

The one commonly called "the MIT license".

> Just slapping a copy of MIT expat into a repo doesn't really mean anything legally.

The author grants a license; if the author says a license is the public license, that's the license the author has granted.

> I reckon it'll be easier to port DOS C free software than to get sepples to compile.

Yeah, but although with Unix there's some amount of pressure (provided by the APIs available to developers) to use C, there was no such pressure with DOS. People used assembly half the time, people wrote code in random dialects of Pascal. On top of that, the "API" half the time was "write to video memory" or "trigger this BIOS interrupt". It's not easy to translate, even if it's C code.

> Please provide examples.

Impulse Tracker is BSD-licensed now. It's written in assembly, so porting is effectively a rewrite. I think you probably know this, but tools for composing music or drawing, people get attached to them, they're not easy to replace.

> I don't see why you would do that instead of using the superior GNU GRUB.

Well, aside from GRUB not having existed for a long time, if I had to pick a bootloader, I'd pick DOS before picking GRUB.

> There is mere investigation (you'll soon realize garbage it is and stop using it)

Well, of course it's all garbage: most DOS software doesn't even have resource-sharing via 9P. But people have put a lot of effort into SIMH, for example. It's difficult to tell if you've ported something competently without being able to run the old version.