liblbfgs0-dbg software package provides L-BFGS solver for unconstrained nonlinear optimization problems, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install liblbfgs0-dbg
liblbfgs0-dbg is installed in your system.
Make ensure the liblbfgs0-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep liblbfgs0-dbg *
You will get with liblbfgs0-dbg package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Debug packages |
| Package | liblbfgs0-dbg |
| Version | 1.10-5 |
| Description | L-BFGS solver for unconstrained nonlinear optimization problems |
| Sub Section | Debug |