I'm learning Ant, have downloaded the version 1.8.2 bin from the ANT page on Apache, but it's coming in Bin form and not Source.
I'm coming across difficulty regarding following paragraph :-
Building the Ant Source Distribution with the Build Script
Now that you have the source distribution on your file system, you can build Ant. If you are installing Ant for the first time, you will have to use the build script (build.bat on Windows and build.sh on Unix). If you have a distribution of Ant already, then you can use the build.xml build file. The "Upgrading Ant" section covers the latter situation.
Installing Ant from source for the first time presents an interesting problem: if you don't have a build tool, how do you build Ant? To solve this problem, the Ant source distribution comes with a build script that compiles the source distribution.
Run the build script appropriate for your system as follows:
This will first compile the core Ant classes from source, before using them to build the rest of the distribution. This happens in two stages. First, the build script calls the bootstrap script, which in turn compiles the bare minimum of Ant classes required and then calls org.apache.tools.ant.Main to build the core of the Ant distribution. Listing 2-3 shows the important part of build.xml that creates the bootstrap build.