From Bugzilla Helper:
User-Agent: Mozilla/4.77 [en] (X11; U; Linux 2.4.9-34smp i686)
Description of problem:
The zlib.h file is missing from the rpm. This file is required to
compile against the library, and also contains the documentation.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
rpm -qf zlib
You didn't install the devel subpackage.