If you would like to build any jNetPcap module from source, here is the information you will need. jNetPcap utilizes SVN for source code version control on SourceForge SVN servers. You can download the source code to any jNetPcap module anonymously and compile it on a number of platforms.
Here is a general outline for setting up your build environment:
The build ANT script will generate 2 new directories under your working source copy, "build" and "dist" directories. "dist" is only created when you are creating a distributable package, otherwise only "build" directory will be created.
In the build directory, after successfully ant build, you will find "classes1.5" and "lib" directories, among few others not important after the build completes successfully. The "classes1.5" directory will have the binary java classfiles, while the "lib" directory will contain the compiled native shared library (.so on unix and .dll on win systems).
You can also execute ant tests task which will run various jUnit test cases directly from the compiled classes1.5 directory and include the newly created shared library as native library.