libfontconfig1-dbg software package provides generic font configuration library - debugging symbols, 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 libfontconfig1-dbg
libfontconfig1-dbg is installed in your system.
Make ensure the libfontconfig1-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep libfontconfig1-dbg *
You will get with libfontconfig1-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libfontconfig1-dbg |
| Version | 2.11.0-0ubuntu4.2 [amd64, i386 |
| Description | generic font configuration library - debugging symbols |
| Sub Section | libdevel |