libxrender1-dbg software package provides X Rendering Extension client library (unstripped), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libxrender1-dbg
libxrender1-dbg is installed in your system.
Make ensure the libxrender1-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep libxrender1-dbg *
You will get with libxrender1-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libxrender1-dbg |
| Version | 1:0.9.8-1build0.14.04.1 [amd64 |
| Description | X Rendering Extension client library (unstripped) |
| Sub Section | libdevel |