Why does sudo apt-get build-dep not work for emacs24?

Question

this is my first post on this SX Forum.

After doing some searching myself (and failing), I wanted to ask why the command sudo apt-get build-dep emacs24 fail on a Pi running Raspbian Jessie?

The output I receive is the following error: E: You must put some 'source' URIs in your sources.list

What I am wondering then is:

1. Why doesn't Raspbian's deb and deb-src not have emacs24's dependencies upstream from Debian?

2. Is there another way to enable the command for emacs24? If not, how can I find all the dependencies needed for building emacs without X Windows (aka GUI) support?

   Thanks!

Answer 1

My system config is

Linux raspberrypi 4.4.13+ #894 Mon Jun 13 12:43:26 BST 2016 armv6l GNU/Linux

Please follow the below steps and it should get things ready for you.

1. sudo vi /etc/apt/sources.list
2. Un comment the line 
   deb-src http://archive.raspbian.org/raspbian/ jessie main contrib non-free rpi

Now the file will look like

deb http://mirrordirector.raspbian.org/raspbian/ jessie main contrib non-free rpi
# Uncomment line below then 'apt-get update' to enable 'apt-get source' 
deb-src http://archive.raspbian.org/raspbian/ jessie main contrib non-free rpi

Perform a sudo apt-get update

Now your command sudo apt-get build-dep emacs24 should work. Its just enabling the builds from deb-src doing the trick.