libclang-dev software package provides clang library - Development package, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libclang-dev
libclang-dev is installed in your system.
Make ensure the libclang-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libclang-dev *
You will get with libclang-dev package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Library development |
| Package | libclang-dev |
| Version | 3.0-6ubuntu3 |
| Description | clang library - Development package |
| Sub Section | libdevel |