On Wed, Aug 04 2021, pukkamustard wrote:

> * gnu/packages/ocaml.scm (ocaml-cstruct-unix): New variable.
> ---
>  gnu/packages/ocaml.scm | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
> index 6effe1ff12..a9a4c8a684 100644
> --- a/gnu/packages/ocaml.scm
> +++ b/gnu/packages/ocaml.scm
> @@ -3412,6 +3412,22 @@ to access C-like structures directly from OCaml.  It supports both reading and
>  writing to these structures, and they are accessed via the Bigarray module.")
>      (license license:isc)))
>  
> +(define-public ocaml-cstruct-unix
> +  (package
> +    (inherit ocaml-cstruct)
> +    (name "ocaml-cstruct-unix")
> +    (build-system dune-build-system)
> +    (arguments
> +     `(#:package "cstruct-unix"
> +       #:test-target "."))
> +    (propagated-inputs
> +     `(("ocaml-cstruct" ,ocaml-cstruct)))
> +    (synopsis "Unix variation of the @code{ocaml-cstruct} library for accessing C-like structures directly from OCaml")

Keep lines at around ~80 characters (applies to the description too).
Maybe drop the second half of the synopsis, so

  "Unix variation of the @code{ocaml-cstruct} library"

The desciption already mentions “access C-like structures directly from
OCaml.”; the synopsis of ‘ocaml-cstruct’ also mentions “Access C
structures via a camlp4 extension”.

WDYT?