Install asterisk 1.8.* in Ubuntu 14.04

Get the latest version of 1.8 * from asterisk download

Install dependencies
apt-get install build-essential libxml2-dev ncurses-dev libssl-dev subversion

--prefix is optional if you want to install asterisk in particular source directory
./configure CFLAGS=-pg LDFLAGS=-pg --prefix=/usr/local/

To do minimum or selected installation
make menuconfig 

make && make install
make samples && make config

To start asterisk
asterisk -i  or  /etc/init.d/asterisk start

connect to cli
asterisk -rvvvvvvvv