From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Bavier <ericbavier@openmailbox.org>
Subject: Re: [PATCH 18/43] gnu: ghc-async: New variable.
Date: Mon, 19 Oct 2015 09:08:36 -0500
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To: Paul van der Walt <paul@denknerd.org>
Cc: guix-devel@gnu.org

On Thu, 15 Oct 2015 14:21:12 +0200
Paul van der Walt <paul@denknerd.org> wrote:

> * gnu/packages/haskell.scm (ghc-async): New variable.
> ---
>  gnu/packages/haskell.scm | 27 +++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
> index e7476e4..cb2af0a 100644
> --- a/gnu/packages/haskell.scm
> +++ b/gnu/packages/haskell.scm
> @@ -1239,4 +1239,31 @@ lets you set up HTTP connections, transmitting requests and processing the
>  responses coming back.")
>      (license bsd-3)))
>  
> +(define-public ghc-async
> +  (package
> +    (name "ghc-async")
> +    (version "2.0.2")
> +    (source
> +     (origin
> +       (method url-fetch)
> +       (uri (string-append
> +             "http://hackage.haskell.org/package/async/async-"
> +             version
> +             ".tar.gz"))
> +       (sha256
> +        (base32
> +         "0azx4qk65a9a2gvqsfmz3w89m6shzr2iz0i5lly2zvly4n2d6m6v"))))
> +    (build-system haskell-build-system)
> +    (arguments `(#:tests? #f)) ; FIXME: testing libraries are missing.

If this is the case, can the "ghc-hunit" input be left out?

> +    (propagated-inputs
> +     `(("ghc-stm" ,ghc-stm)))
> +    (inputs
> +     `(("ghc-hunit" ,ghc-hunit)))
> +    (home-page "https://github.com/simonmar/async")
> +    (synopsis "Run IO operations asynchronously and wait for their results")
> +    (description "Higher-level interface over threads in Haskell, in which
> +Async a is a concurrent thread that will eventually deliver a value of type
> +a.")

The first sentence here is a fragment.  Also, I believe our new texinfo
support could come in handy here (and in other haskell packages, as
they seem to like including code fragments):

"This package provides a higher-level interface over threads in
Haskell, in which @code{Async a} is a concurrent thread that will
eventually deliver a value of type @code{a}."

`~Eric