From MRT Wiki

Building prerequisites

Run this on Ubuntu/Debian etch:

apt-get install subversion g++ libncurses5-dev zlib1g-dev bison flex unzip autoconf gawk make

Downloading

• Login as user (not root)
• Create a work folder and move on it
• Download+uncompress OpenWRT kamikaze running 'svn co https://svn.openwrt.org/openwrt/trunk/'
• Rename folder running 'mv trunk kamikaze_dev'
• Add additional packages running 'make package/symlinks'
• Download my patch running 'wget http://www.arsenio.net/openwrt/gemini/kamikaze_7.09-gemini-0.1.patch.bz2 -O - | bunzip2 > kamikaze-gemini.patch'

Patching

• Move to kamikaze folder running 'cd kamikaze_dev'
• Apply my patch to OpenWRT running 'cat ../kamikaze-gemini.patch | patch -p1'

Configuring

• To change my default OpenWRT configuration run 'make menuconfig'
• To change kernel options use 'make kernel_menuconfig'

Building

• Do a simple 'make'

Developer Notes

To compile a single package run:

make package/my_package_name-rebuild

Always refer to OpenWrt Wiki