lib64objc2 software package provides Runtime library for GNU Objective-C applications (64bit), 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 lib64objc2
lib64objc2 is installed in your system.
Make ensure the lib64objc2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep lib64objc2 *
You will get with lib64objc2 package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Libraries |
| Package | lib64objc2 |
| Version | 4.5.3-12ubuntu2 |
| Description | Runtime library for GNU Objective-C applications (64bit) |
| Sub Section | libs |