To Install gtkmm on ubuntu 16.04 / 14.04 follow the 3 steps bellow.
- step 1 : install the updates
sudo apt-get update 
- step 2 :   Install the Gnu c++ compiler "g++" if is not installed (you will need it to compile your code ).
sudo apt-get update 
 sudo apt-get install g++
 sudo apt-get install g++


 

