How to install Emacs source code under Ubuntu

2013-08-12 11:44 | Source

Only one command:

sudo apt-get install emacs24-el

How I locate that package emacs24-el:

sudo apt-get install apt-file;sudo apt-file update;
apt-file search help.el.gz

BTW, I assign hot key C-h C-f to command find-function which "Find the definition of the FUNCTION near point".