reading an external list of includes

[Scott_Carter]

Problem that I am facing:  I am compiling a source base of about 3500 java
files, but there are about 350 files that I would like to exclude from the
build.  the list of excludes changes from time to time, and the list can be
automatically generated.  But how can I make ant use this list of excludes?
Is there some way to make ant read an external file, or some way to read
this list into my build.xml file.

Thanks for the help