newlib-source software package provides C library and math library intended for use on embedded systems (source), 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 newlib-source
newlib-source is installed in your system.
Make ensure the newlib-source package were installed using the commands given below,
$ sudo dpkg-query -l | grep newlib-source *
You will get with newlib-source package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | newlib-source |
| Version | 2.1.0-3 |
| Description | C library and math library intended for use on embedded systems (source) |
| Sub Section | devel |