To install libsm-dev just follow these instructions.
/debian/jessie/main///install/index.html X11 Session Management library (development headers) Debian 8.0 libdevel 2:1.2.2-1+b1
sudo apt-get install libsm-dev
Which will install libsm-dev and any other packages on which it depends.
Package | libsm-dev |
Version | 2:1.2.2-1+b1 |
Maintainer | Debian X Strike Force |
Description | X11 Session Management library (development headers) |
Distro | debian |
Release | jessie |
Repo | main |
Section | libdevel |