Building fop from source with hyph also from source

[Mathieu Malaterre <malat@debian.org>]

Dear fop-dev,

I am trying to update fop in Debian archive to the latest release. I
see that the main build system switched from ant to mvn.

Could someone please point to the instructions on how to build fop
from source with hyph (mandatory for a Debian package) ?

All I could find is old documentation:

https://xmlgraphics.apache.org/fop/dev/release.html#prepare
http://offo.sourceforge.net/source-installation.html

Unless I missed something I do not see mvn driving ant under the fop
subfolder (I do see a fop/build.xml file though).

Thanks much for your time,