temporary bootstrap (%_[nNlL] not yet handled by the typer)
    
    Bootstrap steps:
    
      disable "-warn-error A" in Makefile
    
      make library -j3 \
      && cp stdlib/stdlib.cma stdlib/std_exit.cmo stdlib/*.cmi boot/ \
      && make partialclean \
      && make ocamlc ocaml -j5
    
      enable -warn-error A again
    
    cp ocamlc boot/
    
    git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14821 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02