NO WAY! ... At least no straight forward way. But if you are prepared to
waste some harddisk capacity and to assemble a select script, you can 
build a multi-lingual BBS.

Move to [./src] and follow this:

make english
make mbox
mv mbox ../mbox.english

make francais
make mbox
mv mbox ../mbox.francais

make deutsch
make mbox
mv mbox ../mbox.deutsch


The files [mbox.english], [mbox.francais] and [mbox.deutsch] are executables
of the BBS. You now can write a little script to let your users select one of
the files to be started.

It's not much convenient, it's not completely multi-lingual cause the editors
are not yet adapted and it's a huge waste of disk space but there you go. It's
a way out ...
