Tobias Geerinckx-Rice <me@tobias.gr> writes:

> * gnu/packages/scheme.scm (hop)[source]: Fix sha256 hash.
> ---
>
> Guix, Kei,
>
> Building hop fails with a hash mismatch. Here's what I get now, however: 
>
> - I don't have a copy of the original tarball with which to compare.
> - The build now fails with ‘cc: command not found’, and I assume it
>   didn't previously.
>
> Could you investigate?
>
> Kind regards,
>
> T G-R
>
>  gnu/packages/scheme.scm | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
> index 657ca875d..9ec13dcb1 100644
> --- a/gnu/packages/scheme.scm
> +++ b/gnu/packages/scheme.scm
> @@ -300,7 +300,7 @@ Scheme and C programs and between Scheme and Java programs.")
>                                   version ".tar.gz"))
>               (sha256
>                (base32
> -               "09m7pahjsp7wxzd20cdph9j3mgf2nq5dyckcjljcd40m25v85kks"))))
> +               "0bvq79vxcpgwydwi923cxb5w9isx2x8r3d0xndbdhacmmsw1m811"))))
>      (build-system gnu-build-system)
>      (arguments
>       `(#:test-target "test"

The one copy of hop's source I have in my /gnu/store has a hash
different than both of these:
0bq7f4z33kg4dyqlhz004sdgf04a5zrlhdknil0is2vf4pg0v5hx.

The diff between my copy and the latest copy is attached.