I’ve done a bit of work to use http://merjis.com/developers/mod_caml|mod-caml with apache 2.2 . I’ve uploaded everything on the debian gforge website http://alioth.debian.org/projects/pkg-ocaml-maint/|alioth.
to recompile the package you can get it via svn
svn co svn://svn.debian.org/svn/pkg-ocaml-maint/trunk/packages/mod-caml
Then you can compile the package with svn-buildpackage.
I’ve also wrote a small patch to recursively load dependent modules. I attached a simple loader module that is partially a rip-off of some GPL code I found on the net.