commitinfo to check local files

[Fischer, Balazs]

I use cvs to control xmath script files. When a mathscript 
function foo.msf is compiled the result is a file named foo.xf.
I want to make a commit impossible if there is no .xf file in the
users directory (that means that the user has to run the script
at least once before he checks it in). AFAIK Commitinfo
works in the repository and not on the local files. Is there another
way to check files before they are checked in or a way to force
commitinfo to work on the local files?

cu

Balazs Fischer