Build Instructions Updated

Build Instructions

So are you ready to build Processing in its raw form? Dive in!

You require the following components (latest versions obviously):

• JDK 6
• Apache Ant
• git (Windows/Mac users may install GitHub for Windows/Mac)

## Setup Environment Variables

The process of setting up environment variables is different for each platform. ###Windows

• Windows XP, right-click My Computer → Properties → Advanced → Environment Variables
• Windows 7, Start → Search "Environment Variables", and click "Edit the system environment variables".
• Windows 8: Control Panel → Click More Settings on the left →Search "Environment Variables" in Control Panel, and click "Edit the system environment variables".

We need to set two environment variables. **Set JAVA_HOME** Under user variables, click New. Set Name as: ```JAVA_HOME``` Set value as location to the JDK 6 installation folder. For ex, on our system the value is ```C:\Program Files\Java\jdk1.6.0_41``` **Set Path** Double click on ```Path``` variable. If a variable named ```Path``` doesn’t exist, create a new one and set its name as ```Path```. Set its value as location to JDK 6’s bin folder. Insert a semi-colon separator too, if multiple paths already exist in the value field. For ex, Add this to the end of value: ```;C:\Program Files\Java\jdk1.6.0_41\bin``` Log out and log back in for changes to take effect.

###Mac OS X Set JAVA_HOME

To set JAVA_HOME, open Terminal and type: ```open /Applications/TextEdit.app/ ~/.bash_profile```

Add the following line:

```export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home```

Save the file, log out and log back in for changes to take effect.

###Linux Set JAVA_HOME

To set JAVA_HOME, open Terminal and type: ```sudo gedit ~/.bashrc```

Add the following line:

```export JAVA_HOME=''```

Save the file, log out and log back in for changes to take effect.

Cloning Time!

To grab a copy of the Processing source code to your system, go to Processing GitHub repo. If you see the Clone in Windows/Mac button, click that. If you want to clone via the terminal (git shell for Windows users), type:

```git clone https://github.com/processing/processing.git```

The repo is kinda big, nearly 1.5 GB. So go take a break while it downloads. Also remember that git's cloning process can’t be paused. If the download gets interrupted midway, you’ll have to clone the full thing again.

##Build It

Now it’s time to build the beast! cd to the processing/build folder and type:

ant run

It can take a few minutes if you’re building for the first time. If you did everything correctly, the Processing window should greet you. Cheers!

##Updating the latest version

The main Processing repo gets updated regularly as the team continues development. To add the latest changes to your clone, cd to processing folder and type:

git pull

git update

If after updating you’re getting build errors, from processing/build folder, type:

ant clean

Try building again.