libldap2-dev software package provides OpenLDAP development libraries, 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 libldap2-dev
libldap2-dev is installed in your system.
Make ensure the libldap2-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libldap2-dev *
You will get with libldap2-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libldap2-dev |
| Version | 2.4.31-1+nmu2ubuntu8.2 [amd64, |
| Description | OpenLDAP development libraries |
| Sub Section | libdevel |