android_build_environment_arch_linux

Commands starting with # should be run as root or sudo
Commands starting with $ should be run by your regular user

You will need a seperate directory for symlinks to old versions of python and
java. To do this we need to create a new directory that can be added to our
$PATH environment variable.

# mkdir /build_path
# pacman -S git gnupg flex bison gperf sdl wxgtk squashfs-tools curl ncurses zlib schedtool perl-switch zip unzip libxslt python2-virtualenv bc rsync jdk7-openjdk

If you already have some of these packages you will get warnings that you are
reinstalling packages, this is totally fine but if you want to remove them from
the list of packages you are installing so that you aren't wasting bandwidth
then go ahead and do that.

Now refer to the Arch Wiki on how to enable the multilib repository in pacman
if it isn't already enabled, then install these packages.

# pacman -S gcc-multilib lib32-zlib

Refer to the Arch Wiki on how to install these AUR packages. Use any AUR
helper you want, or cower and makepkg.
NOTICE: THIS COMMAND SHOULD NOT BE RUN AS ROOT

$ mkdir packages; cd $_
$ cower -d ncurses5-compat-libs lib32-ncurses5-compat-libs lib32-readline pngcrush repo android-sdk libtinfo-5

With my above example you will need to cd into each directory and makepkg -s,
pacman -U. If you don't know how, refer to the Arch Wiki.

# ln -s /usr/bin/python2 /build_path/python
# ln -s /usr/bin/python2-config /build_path/python-config
# ln -s /usr/lib/jvm/java-7-openjdk/bin/java /build_path/java
# ln -s /usr/lib/jvm/java-7-openjdk/bin/javac /build_path/javac

Assuming you have followed this guide from the this far, you can now create a
file to hold your environment settings when you want to build. Call it whatever
you want to and store it wherever you like, but this is what it should contain.

#!/bin/bash
export PATH=/opt/android-sdk/tools:$PATH
export PATH=/opt/android-sdk/tools:$PATH
export PATH=/build_path:$PATH
export JAVA_HOME=/usr/lib/jvm/java-7-openjdk/
export LANG=C

Now before building, you run this command. Assuming that's what it is called and
where you saved it.

$ source ~/android_environment.sh

If you have clang errors when building, you need to merge this commit http://review.cyanogenmod.org/#/c/120824/

Please leave a comment if you think there is an error 😃