The Notify-0.7.gir GIR file is required by cs_notifications.py script from Cinnamon and is provided by the libnotify package with introspection flag enabled. See https://github.com/linuxmint/Cinnamon/blob/2499b0920ddbc86692f89cb54777486005add497/files/usr/share/cinnamon/cinnamon-settings/modules/cs_notifications.py#L4 for details.
Created attachment 547062 [details, diff] Add libnotify[introspection] dependency to cinnamon-3.6.6 ebuild
Created attachment 547064 [details, diff] Add libnotify[introspection] dependency to cinnamon-3.8.8 ebuild
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=999d64da43c7547c07e76226e7ded7fd3568e302 commit 999d64da43c7547c07e76226e7ded7fd3568e302 Author: Kristian Fiskerstrand <k_f@gentoo.org> AuthorDate: 2018-11-24 18:25:45 +0000 Commit: Kristian Fiskerstrand <k_f@gentoo.org> CommitDate: 2018-11-28 19:55:18 +0000 gnome-extra/cinnamon: New upstream version 4.0.3 Closes: https://bugs.gentoo.org/671296 Closes: https://bugs.gentoo.org/666388 Closes: https://bugs.gentoo.org/666386 Closes: https://bugs.gentoo.org/666382 Signed-off-by: Kristian Fiskerstrand <k_f@gentoo.org> Package-Manager: Portage-2.3.51, Repoman-2.3.11 gnome-extra/cinnamon/Manifest | 1 + gnome-extra/cinnamon/cinnamon-4.0.3.ebuild | 209 +++++++++++++++++++++++++++++ 2 files changed, 210 insertions(+)