libapr1 software package provides Apache Portable Runtime Library, 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 libapr1
libapr1 is installed in your system.
Make ensure the libapr1 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libapr1 *
You will get with libapr1 package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Libraries |
| Package | libapr1 |
| Version | 1.4.6-1 |
| Description | Apache Portable Runtime Library |
| Sub Section | libs |