Quantifying the time overhead of Cygwin make

[Tor Lillqvist]

> it's possible that Msys has a lot of the things we need,

Technically MSYS is a fork of Cygwin, though. Faster? Assume so, yes,
why else would they have bothered. More immune to the "Imagine a
future Windows version breaking cygwin fundamentally" effect? No idea.

I did use MSYS quite a lot some years ago, but I have forgotten
exactly what the differences to Cygwin were.

--tml