[BRLTTY] Patch: support for OCaml-4.04

[Jaroslav Skarvada]

----- Original Message -----
> [quoted lines by Jaroslav Skarvada on 2016/11/08 at 07:58 -0500]
> 
> >it seems that brltty-5.4 doesn't compile with OCaml-4.04.
> >Tthe code uses CAMLlocal without calling CAMLparam which is against
> >current OCaml documentation. More details in Fedora bug [1]. Attached
> >patch should fix the problem
> 
> This gives me the following two warnings. How can they be resolved?
> 
> ./brlapi_stubs.c: In function ‘raise_brlapi_error’:
> ./brlapi_stubs.c:147:29: warning: unused variable ‘caml__frame’
> [-Wunused-variable]
> ./brlapi_stubs.c: In function ‘raise_brlapi_exception’:
> ./brlapi_stubs.c:161:29: warning: unused variable ‘caml__frame’
> [-Wunused-variable]
> 
> --
> Dave Mielke           | 2213 Fox Crescent | The Bible is the very Word of
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Which version of OCaml? I haven't encountered these warnings with OCaml-4.04.
To be honest I don't know much about OCaml, but this looks like OCaml bug,
I can forward it to OCaml maintainer

thanks & regards

Jaroslav