`yum install` **** atom **** (yukihane)
(RHEL5)
# yum whatprovides libgtk-x11-2.0.so.0
gtk2-2.10.4-30.el5.x86_64 : The GIMP ToolKit (GTK+), a library for creating GUIs for X
...
`gtk2``yum install`
# yum install gtk2