Where to store module-specific read-only data?

Hi,

this question is only loosely connected to Module::Build
therefore pointers to more focused ressources are welcome.
I'm trying to re-pack a small Perl web application from a
traditional Makefile to App::Build and modularize it in the
process.

  Part of the application is a rather huge SQLite database
that gets generated from text data before installation. In a
standard FHS environment, it should probably end up below
/usr/share/$WEBAPP. Module::Build does not seem to provide
an option to install data there, so:

  Where do CPAN modules usually store read-only data? Does
someone know of a module that I could use for reference?
Also I'm interested in modules using Module::Build with such
a generation/transformation step in its Build.PL.

TIA,
Tim