During RPM installation under the Requires section of my spec file how do I install a group of things?  For instance:Requires: Developer Toolswhich will pull from yum because I execute this like so:yum install myRpm.rpm
RPM Requires group
centos;yum;rpm
You can't. RPM used to have a built-in concept of groups (look at /usr/share/doc/rpm/GROUPS for the canonical list, still), but this turned out to not be very useful and was dropped. (But even then, there was no way to express requirements in this way.) Now, package groups are done at a higher level in comps files understood by yum  but there's no way to refer to them in a package.Some distributions address this by creating metapackages  packages which by their own Requires lines define a sort of group. We don't do that in Fedora (and that's inherited into CentOS and RHEL).So, basically  you'll have to either document that this RPM requires a certain group to really be useful, or list all of the real dependencies one by one.