For more information on why this happened check out Richard's blog post: https://devblogs.microsoft.com/commandline/microsoft-open-so...
> Alas, we’re unable to provide sources for these ports and/or customizations.
I wonder why. (I guess it might involve code licensed from third parties, co-developed and jointly owned with OEM vendors, or unclear provenance of IP.)
I wonder if it will ever change. I hope one day it does.
One of these days (probably long after I'm dead) the copyright will expire. I hope the source code hasn't been lost by then. (Sadly, there's a decent chance it will have been.)