OUCH... Why do that when mysql.com already provides a compat package?
Because "Kanwar Ranbir Sandhu" says "I've rebuilt mysql-4.1.9-1 on my FC3 machine from the Fedora development source RPM".
So i think it's a better solution to use all the package from the same source. And this packages are very well integrated with other Fedora ones.
Remi.