When I try to compile a program with ocamlopt,  
the following  exception is raised

Uncaught exception: Stack overflow

How can I do to avoid it .
 
 The program has been automatically generated. (by tagcc 
www.lami.univ-evry.fr/~delapla/tagcc/)  
 And it contains a  weighted finite state automata .

Here the command line
bio1:~/Tagcc>ocamlopt -o annotation  -ccopt "-O" -noassert -unsafe -I 
bin/ bin/curses.o bin/libtagcc.cmxa annotation.ml  -cclib lncurses
Uncaught exception: Stack overflow

Thank you

PS: You will find attached the source code 

-- 
Franck Delaplace @w3:http://www.lami.univ-evry.fr/~delapla/
Equipe BioInfo, La.M.I-U.M.R 8042 C.N.R.S
523 Place des Terrasses 
91025 Evry CEDEX (France)