[ELGIS] Conflicts with libdrm

[Mathieu Baudier]

> libdrm.i686                      2.4.23-1.el6                     @sl
> libdrm.x86_64                    2.4.23-1.el6                     @sl
> libdrm-devel.x86_64              2.4.23-1.el6                     @sl
> Available Packages
> libdrm.x86_64                    2.4.26-1.el6.elrepo
>  elrepo-testing
> libdrm-devel.i686                2.4.23-1.el6                     sl
> libdrm-devel.x86_64              2.4.26-1.el6.elrepo
>  elrepo-testing

You issue seems to be related to ElRepo, not ELGIS.
Apparently you have ElRepo Testing enabled.