FYI since so many folks here use qmail and daemontools...
With Red Hat 9 (and other distros that use a recent version of glibc) there has been a change in glibc that breaks all of DJB's software.
If you go to the main qmail site at http://qmail.org/top.html and scroll down to the bottom of the page you'll find a link to the patches you need to compile qmail, daemontools, etc.