pkg-wizard - simple framework and tools to build and manage RPM packages
pkg-wizard is both a ruby library to deal with common RPM tasks and set of commands to build and create RPM packages.
pkg-wizard installs pkgwiz, the command line tool used to manage and build RPMS/SRPMS.
Follow these steps (as root):
yum install rubygems make ruby-devel gcc gcc-c++
gem install pkg-wizard
Setup the environment
This will install all the required dependencies to use pkg-wizard tools.
If you are a packager interested in using pkg-wizard build tools, have a look at pkgwiz.