> boot/ocamlrun boot/ocamlc -nostdlib -I boot  -compat-32 -o ocamlc \
>            compilerlibs/ocamlcommon.cma compilerlibs/ocamlbytecomp.cma driver/main.cmo
> File "_none_", line 1:
> Error: Error while linking boot/stdlib.cma(Array):
> The external function `caml_create_vect' is not available

So, caml_create_vect is in boot/ocamlrun but the boot/ocamlc that's shipped
in the tarball apparently don't know how to reach it.

Evgeny Roubinchtein suggested me to read again the manual about mixing C and
ocaml, and so I tried to add the -use-runtime parameter and it solved this
issue. In my limited understanding of the bootstraping process this option
should really always be present when using the shipped boot/ocamlc.

This was not enough, though, to trick myocamlbuild, so eventualy I used a
shell wrapper around ocamlrun (see attached patch).

There ought to be a better way!