[PATCH v3] build: install notmuch-emacs-mua.desktop file with emacs

[David Bremner]

Jani Nikula <jani at nikula.org> writes:

> There is really no need to have a separate install target for the
> desktop file. Just install the desktop file with emacs, with a
> configure option to opt out.
>
> ---
>
> v3: check for desktop-file-install in configure.
>

pushed to master.

d