Brendan Tildesley <brendan.tildesley@openmailbox.org> writes:

> From 9317684cdc23bcf6edb8f38abf5f057b319a0a68 Mon Sep 17 00:00:00 2001
> From: Brendan Tildesley <brendan.tildesley@openmailbox.org>
> Date: Tue, 16 May 2017 10:53:44 +1000
> Subject: [PATCH 10/10] gnu: calibre: Don't create uninstaller.
>
> gnu/packages/ebook.scm (calibre). Don't create uninstaller.
> ---
>  gnu/packages/ebook.scm | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/gnu/packages/ebook.scm b/gnu/packages/ebook.scm
> index 289c2d07d..cca5e7895 100644
> --- a/gnu/packages/ebook.scm
> +++ b/gnu/packages/ebook.scm
> @@ -84,6 +84,8 @@
>              (delete-file-recursively "resources/fonts/liberation")
>              (delete-file-recursively "src/chardet")
>              (substitute* (find-files "." "\\.py")
> +              ;; We can't use the uninstaller in Guix. Don't build it.
> +              (("self\\.create_uninstaller()") "")

I moved this to a phase instead since 'snippets' affects the result of
`guix build -S`. We try to keep the original source code as original as
possible, and apply guix-specific tweaks in phases instead. 

Sorry I missed it the first round, and thanks for finding it!