Bummer. How about this? https://github.com/bsdimp/v7 https://github.com/bsdimp/v7 or maybe here? https://github.com/bbarker/AncientenUnixen/tree/main/v7x86-

Bummer. How about this? https://github.com/bsdimp/v7 https://github.com/bsdimp/v7 or maybe here? https://github.com/bbarker/AncientenUnixen/tree/main/v7x86-0.8a-all/release/usr/src https://github.com/bbarker/AncientenUnixen/tree/main/v7x86-0... or you might find something exploring the old v7x86 page on Nordier.com using archive.org: https://web.archive.org/web/20181205153811/https://www.nordier.com/v7x86/ https://web.archive.org/web/20181205153811/https://www.nordi... https://web.archive.org/web/20181205154120/http://www.nordier.com/v7x86/download.html https://web.archive.org/web/20181205154120/http://www.nordie... EDIT: going back and looking at that original file, it looks like if you expand it, then drill down in there and extract v7x86-0.8a.tar.bz2 you will find some source files under usr/src/ Not sure if that's the entire source tree or not. I'm not super up on the state of "ancient unix". :-)