menuconfig

Add an entry to kernel config menu
** make sure library has been installed, "ncurses-devel"

/kernel source$ make clean
/kernel source$ make menuconfig

Change emacs theme

M-x load-library
color-theme
M-x color-theme-select

After you've selected a theme on the list then press ENTER

P.S. Place color-theme folder to ~/.emacs.d

Tags with Emacs

For emacs you can't use the file, which is generated by ctags. You should use etags.

$ find -E . -iregex '.*\.(cpp|[ch])$' | etags -

Inside Emacs

M-x visit-tags-table <RET> FILE <RET>

M-. Find the first definition of TAG

M-* Pop back

C-u M-. Find the next definition

Reference:

http://www.gnu.org/software/emacs/manual/html_node/emacs/Tags.html

http://www.gnu.org/software/emacs/manual/html_node/emacs/Create-Tags-Table.html#Create-Tags-Table

Synopsis:

http://ctags.sourceforge.net/ctags.html#SYNOPSIS