[Libguestfs] [PATCH] Fix building on architectures where ocamlopt is not available

[Hilko Bengen]

* Richard W.M. Jones:

> (1) Removing .NOTPARALLEL.  This fails, as expected.
>
> (2) mlguestfs.cmxa: mlguestfs.cma  -- fails
>
> (3) mlguestfs.cmxa: | mlguestfs.cma  -- fails after a longer time

I find it strange that (2) and (3) fail.

> (4) The attached patch which is derived from dce94f -- this ran
> without failing for 120 iterations (and still going).

The patch looks good to me.

-Hilko