Ah, I forgot to leave a blank line in the commit message.

Here is a patch for the current master as of a few minutes ago.

On Thu, Feb 20, 2020 at 17:04, Jakub Kądziołka <kuba@kadziolka.net> 
wrote:
> On Wed, Feb 19, 2020 at 02:41:21PM +0100, raingloom wrote:
>>  The project has not seen much development in some time, so it 
>> needed a few
>>  patches. I found them in the Arch package, but they seem to be from 
>> the
>>  upstream SourceForge project and mailing list.
>> 
> 
> Hi,
> 
> the bullet points in your commit message are at the end of the lines 
> for
> some reason. Also, the added .patch files don't apply when I `guix 
> build
> desmume'. I think you'll need to resend the patch. Also, when you add
> .patch files, you need to add them to a list in gnu/local.mk.
> 
> Regards,
> Jakub Kądziołka