Xlib is a library for clients of X window system, written in C language. Includes subroutines that interact with the X server. By using these subroutines, it is possible to write programs without knowing the details of the X protocol.
[vagrant@localhost ~]$ yum list installed | grep xlib
[vagrant@localhost ~]$
[vagrant@localhost ~]$ yum list installed | grep libX11
libX11.x86_64 1.6.4-3.el6 @base
libX11-common.noarch 1.6.4-3.el6 @base
[vagrant@localhost ~]$ yum list installed | grep libXext
libXext.x86_64 1.3.3-1.el6 @base
[vagrant@localhost ~]$ yum list installed | grep libXi
libXi.x86_64 1.7.8-1.el6 @base
[vagrant@localhost ~]$ yum list installed | grep libXrender
libXrender.x86_64 0.9.10-1.el6 @base
[vagrant@localhost ~]$ yum list installed | grep libXtst
libXtst.x86_64 1.2.3-1.el6 @base
[vagrant@localhost ~]$ yum list installed | grep libjpeg-turbo
libjpeg-turbo.x86_64 1.2.1-3.el6_5 @base
[vagrant@localhost ~]$ yum list installed | grep libpng
libpng.x86_64 2:1.2.49-2.el6_7 @base
[vagrant@localhost ~]$ yum list installed | grep tzdata-java
tzdata-java.noarch 2018f-1.el6 @updates
