Red Hat Bugzilla – Bug 88186
In "man rpm", package rpm-build is refered to as rpmbuild
Last modified: 2007-04-18 12:52:49 EDT
In "man rpm" it is said
Install the rpmbuild package, and see rpmbuild(8) for documentation...
Although the intended package name is rpm-build.
Fixed in CVS, will end up in rpm-4.3.