app-backup/timeshift-21.09.1: revbump, use make instead of emake

- update xdg icon cache after install

    Bug: https://bugs.gentoo.org/849626
    Bug: https://bugs.gentoo.org/849629
    Bug: https://bugs.gentoo.org/883157

Signed-off-by: Pascal Jäger <pascal.jaeger@leimstift.de>

app-backup/timeshift/timeshift-21.09.1-r2.ebuild

@@ -1,9 +1,8 @@
 # Copyright 2019-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
-VALA_MIN_API_VERSION="0.44"
-inherit vala xdg
+EAPI=8
+inherit optfeature toolchain-funcs vala xdg
 
 DESCRIPTION="A system restore utility for Linux"
 HOMEPAGE="https://github.com/teejee2008/timeshift"
@@ -40,3 +39,21 @@ src_prepare() {
 	vala_src_prepare
 	default
 }
+
+src_compile() {
+	tc-export CC
+	# can't use emake here, fails to compile because some files getting removed
+	# during compilation, which are missing afterwards.
+	# https://bugs.gentoo.org/883157
+	# Pascal Jäger <pascal.jaeger@leimstift.de> (2022-11-26)
+	make all || die
+}
+
+pkg_postinst() {
+	xdg_pkg_postinst
+	optfeature "btrfs support" sys-fs/btrfs-progs
+}
+
+pkg_postrm() {
+	xdg_pkg_postrm
+}