Ant script to choose between multiple version of classpaths

Question

I am new to Ant scripts.

below is description of requirement

in my workspace, there are various projects and I have to have my project work on RAD and eclips

Answer 1

I would like to share the approach that I finally implemented.

There were classpath, settings and some project config xmls that were dependent on runtime.

In each project we created a runtime_classpah & runtime_settings and configxml_runtime version of each file.

Created a target in ant that takes in runtime as param ,itrates over each project & copies contents of classpath_runtime to classpath ,setting_runtime to settings.

And a target that overrites configxml with contents of configxml_runtime