Description of problem:
The devhelp spec file should have an explicit mozilla version specified in the
corresponding BuildRequires line. The explicit mozilla version is also
mentioned in the Requires line, but because the build autodetects the mozilla
version, the package is not cooperating with that version if another version was
present on the build host.
Version-Release number of selected component (if applicable):
RHEL4 is EOL now, closing as won't fix. IIRC it should have been fixed anyway.