Joerg, David and I are discussing alternatives to the current build file entities for the sub-targets. One that's on the table now is to use ANTModule from http://www.ct42.de/en/ch02.html. See below for the discussion that's happened so far.
As this would refactor the build (to a degree), I figure this should be discussed. What do "we" think?...
Assuming this is really needed, wouldn'it be easier to store well-formed ant include files and pre-process them (with XSLT for example) during the build, instead of introducing yet another build tool?
-Bertrand