title: Automatic Build for Non-Java Eclipse Project
body: <p>I have a project that contains xml files.  I also have an Ant build in that project to generate documentation based on the xml files. The Ant build calls a Ruby script for generation.</p>
  
  <p>I would like a way run that Ant build after the modification of any resource in the "{project}/xml" folder. I know that I can right click on the build.xml and Run As->Ant Build, but I want it to be more like the incremental build for Java projects.  I have tried creating a builder, importing the Ant build and setting up relevant resources, but when I make a change to the XML file, a build does not start.  I have "Build Automatically" checked for the project as well.</p>
  
  <p>This must be possible.  What am I missing?</p>