lv2-dev software package provides LV2 audio plugin specification, 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 lv2-dev
lv2-dev is installed in your system.
Make ensure the lv2-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep lv2-dev *
You will get with lv2-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | lv2-dev |
| Version | 1.8.0~dfsg0-1 |
| Description | LV2 audio plugin specification |
| Sub Section | libdevel |