Description of problem:
The tcllib package is not available in EPEL7; it is present in EPEL5 and EPEL6.
Steps to Reproduce:
1. yum install tcllib
No package tcllib available.
Successful installation of package tcllib.
Why is this considered an "extra" anyway? It should be in the main repository like tcl is.
Incidentally, I was able to use the tcllib package from Fedora 19.