games-strategy/unciv-bin: use xdg eclass

This ebuild installs desktop/icon files.

Signed-off-by: Takuya Wakazono <pastalian46@gmail.com>

games-strategy/unciv-bin/unciv-bin-4.15.6_p1.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit desktop java-pkg-2
+inherit desktop java-pkg-2 xdg
 
 MY_PV=${PV/_p/-patch}
 DESCRIPTION="Turn-based historical strategy game, a remake of Civ V"
@@ -32,3 +32,8 @@ src_install() {
 	# this desktop file is better than upstream's
 	make_desktop_entry "${PN}" Unciv-bin unciv "Game;StrategyGame" "Terminal=false"
 }
+
+pkg_preinst() {
+	java-pkg-2_pkg_preinst
+	xdg_pkg_preinst
+}