Here is a quick run down of how to build and run Netbeans from source under OS X 10.6. I highly recommend giving this a go as there are always lots of good features being added to Netbeans at the moment I am trying out the Zend support in the latest version.

  1. Install Ant & Java SDK I did this by installing the OS X developer tool kit or follow the guide here
  2. Download & Install the latest version of Mercurial –
  3. Clone the main branch
    `hg clone`
  4. Create a .antrc in your home directory and add `ANT_OPTS=”-Xmx512m -XX:MaxPermSize=256m”` to the file.
  5. Change into the directory main
    `cd main`
  6. Then just run ant
  7. It takes about 30 minutes the first time on my MacBook Pro if it builds with no errors your good, to run it you need to run the built file `./nbbuild/netbeans/bin/netbeans`