* gnu/packages/patches/gdm-default-session.patch: Make GDM look in
the system profile for the "wayland-sessions" directory.
Reported-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
* gnu/packages/patches/gdm-elogind-support.patch: New file.
* gnu/packages/patches/gdm-default-session.patch: Update it.
* gnu/local.mk (DIST_PATCH_DATA): Add the new patch.
* gnu/packages/gnome.scm (gdm): Update to 40.1.
[source]: Add the gdm-elogind-support support.
[build-system]: Switch to meson-build-system.
[arguments]<#:glib-or-gtk>: Set to true.
<#:configure-flags>: Convert to meson options. Add logind-provider,
systemsystemunitdir and systemduserunitdir options.
<#:phases>{pre-configure}: Remove the libelogind intoduction that is now
handled by the patch. Remove trailing #t.
[inputs]: Add eudev.
Fixes <https://bugs.gnu.org/37831>.
Reported by Pierre Neidhardt <mail@ambrevar.xyz>.
* gnu/packages/patches/gdm-default-session.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/gnome.scm (gdm)[source]: Use it.
