--- If you would rather use a ready-to-go Virtual Machine based on these instructions, check out this post! ---
With a new version of Ubuntu comes an update to my guide for setting up a build environment to compile Android ROMs. The aim of this is to simplify the configuration process and teach a little bit about the command line.
Follow the directions step-by-step. All you have to do is copy and paste the code in order, it will be up and running in no time!
This guide applies to all variations of Ubuntu 16.04 LTS Xenial Xerus 64 bit. Do not use the 32 Bit version.
Also, PAY CLOSE ATTENTION when to use "sudo" and when to not. It can cause unexpected issues if you do something as root that you shouldn't.
Much thanks goes out to Google, ProTekk, Canonical, and everyone else that I read a random paragraph here and snippet there.
Ready to begin?
1) Unless it's a completely fresh Ubuntu installation, many people might have the wrong version of Java installed. Let's fix that first.
The command below makes sure you're starting with a clean slate. Copy and paste it into a terminal (command prompt) window:
sudo apt-get remove openjdk-* icedtea-* icedtea6-*
2) Install the main build tools with this command:
sudo apt-get install git ccache automake lzop bison gperf build-essential zip curl zlib1g-dev zlib1g-dev:i386 g++-multilib python-networkx libxml2-utils bzip2 libbz2-dev libbz2-1.0 libghc-bzlib-dev squashfs-tools pngcrush schedtool dpkg-dev liblz4-tool make optipng maven
mkdir ~/bin && curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo && chmod a+x ~/bin/repo
export PATH=~/bin:$PATH export USE_CCACHE=1
mkdir ~/android cd ~/android
For the purposes of this tutorial, here's the command for Cyanogenmod 13 (Marshmallow) :
repo init -u https://github.com/CyanogenMod/android.git -b cm-13.0
Don't worry, it's automated. It's the last one!
10) Now, for Java. Some ROMs (Android Lollipop / CM 12.1 and below) require OpenJDK 7. Marshmallow / CM 13 and above require OpenJDK 8. If you're building for reallllllly old devices, OpenJDK 6. Here's the easiest way to install on Ubuntu 16.04.
First, add the PPA for OpenJDK:
sudo add-apt-repository ppa:openjdk-r/ppa
sudo apt-get update && sudo apt-get install openjdk-7-jdk