Somebody compiled KDE version 1 on Debian #Linux 13. It is a miracle that you can even able to compile it. Source https://www.reddit.com/r/unixporn/comments/1buqeeo/kde_112_kde_1_compiled_on_debian_13_trixie/ #opensource
@nixCraft Yes, I have done it before. I compiled X11 first, then Qt, then KDE 1.0. It took me a long time, a lot of time.