[bug#73157] [PATCH] gnu: mscgen: Fix dependencies.

[Maxim Cournoyer <maxim.cournoyer@gmail.com>]

Hello,

Sébastien Lerique <sl@eauchat.org> writes:

> * gnu/packages/graph.scm (mscgen)
> [inputs]: Add fontconfig, freetype, ijg-libjpeg, libpng, zlib.
>
> Change-Id: If185bcb2f786f6493c20040b47e93440987d7243
> ---
>  gnu/packages/graph.scm | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/gnu/packages/graph.scm b/gnu/packages/graph.scm
> index 5c985eaf5b..e987e656a0 100644
> --- a/gnu/packages/graph.scm
> +++ b/gnu/packages/graph.scm
> @@ -53,10 +53,12 @@ (define-module (gnu packages graph)
>    #:use-module (gnu packages datastructures)
>    #:use-module (gnu packages docbook)
>    #:use-module (gnu packages flex)
> +  #:use-module (gnu packages fontutils)
>    #:use-module (gnu packages gd)
>    #:use-module (gnu packages graphics)
>    #:use-module (gnu packages graphviz)
>    #:use-module (gnu packages gtk)
> +  #:use-module (gnu packages image)
>    #:use-module (gnu packages linux)
>    #:use-module (gnu packages machine-learning)
>    #:use-module (gnu packages maths)
> @@ -813,7 +815,7 @@ (define-public mscgen
>      (native-inputs
>       (list pkg-config))
>      (inputs
> -     (list gd))
> +     (list fontconfig freetype gd ijg-libjpeg libpng zlib))
>      (home-page "https://www.mcternan.me.uk/mscgen/")
>      (synopsis "Message Sequence Chart Generator")
>      (description "Mscgen is a small program that parses Message Sequence Chart
>
> base-commit: 590904cca15922e6474fbd3a71af9b3a45b268af

I've built this locally, and checked if references were retained to the
added inputs; it seems ijg-libjpeg is not retained as a reference, which
means it is unused at run time and could be left out (or perhaps it
tries to dynamically load it, in which case the dlopen calls could be
patched, but I doubt so).

--8<---------------cut here---------------start------------->8---
$ guix gc -R /gnu/store/jbdbq8kxy5956wkqg4qrvfdks776gfb1-mscgen-0.20 |
grep ijg-libjpeg
-> no output
--8<---------------cut here---------------end--------------->8---

Could you verify the above, and if my assumption is correct, send a v2
without the added ijg-libjpeg?

-- 
Thanks,
Maxim