Installing wiringpi ?

[Skywatch]

I am trying to install wiring pi, but which ever way I try I get....

Terminal

root@cinema /home/wiringpi # ls
wiringPi-5edd177 wiringPi-5edd177.tar.gz
root@cinema /home/wiringpi # cd /home/wiringpi/wiringPi-5edd177
root@cinema /home/wiringpi/wiringPi-5edd177 # ./build
wiringPi Build script
=====================


WiringPi Library
sudo: make: command not found
./build: 130: ./build: make: not found

Make Failed...
Please check the messages and fix any problems. If you're still stuck,
then please email all the output and as many details as you can to
projects@drogon.net

Can anyone tell me how to proceed to complete this installation please?

Thanks.