m4 software package provides a macro processing language, 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 m4
m4 is installed in your system.
Make ensure the m4 package were installed using the commands given below,
$ sudo dpkg-query -l | grep m4 *
You will get with m4 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Interpreters |
| Package | m4 |
| Version | 1.4.17-2ubuntu1 |
| Description | a macro processing language |
| Sub Section | Interpreters |