Subject: [bug#28667] [PATCH] gnu: cflow: Fix preprocess option.

From: Oleg Pykhalov <[email-masked]>
Date: Tue, 03 Oct 2017 10:41:10 +0300

Oleg Pykhalov <[email-masked]> writes:

>>>From c2a8265ecb4e52b4447f75112dace21ed5ccc12a Mon Sep 17 00:00:00 2001
> From: Oleg Pykhalov <[email-masked]>
> Date: Mon, 2 Oct 2017 07:38:09 +0300
> Subject: [PATCH] gnu: cflow: Fix preprocess option.
>
> * gnu/packages/code.scm (cflow): Fix preprocess option.
> ---
>  gnu/packages/code.scm | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/gnu/packages/code.scm b/gnu/packages/code.scm
> index 6e04739f6..819c3e8d4 100644
> --- a/gnu/packages/code.scm
> +++ b/gnu/packages/code.scm
> @@ -58,7 +58,12 @@
>  
>      ;; Needed to have cflow-mode.el installed.
>      (native-inputs `(("emacs" ,emacs-minimal)))
> -
> +    (propagated-inputs `(("gcc" ,gcc-7)))

I also build and used successfully without propagated-inputs.  

$ guix gc --references /gnu/store/v71isli6q49clai9kkc0yylq26sl5x1d-cflow-1.5
/gnu/store/3x53yv4v144c9xp02rs64z7j597kkqax-gcc-5.4.0-lib
/gnu/store/5sv5zy2kgg6iaqyv8zw49w4243j0xkd0-gcc-5.4.0
/gnu/store/n6nvxlk2j8ysffjh3jphn1k5silnakh6-glibc-2.25
/gnu/store/v71isli6q49clai9kkc0yylq26sl5x1d-cflow-1.5

Do I actually need to propagated input `gcc-5' (aka `gcc')?