x11-libs/libdrm: add "udev" USE flag

udev support switches internal logic and does not require any external
libs.

Closes: https://github.com/gentoo/gentoo/pull/22163
Signed-off-by: Karlson2k (Evgeny Grin) <k2k@narod.ru>
Signed-off-by: Matt Turner <mattst88@gentoo.org>

x11-libs/libdrm/libdrm-9999.ebuild

@@ -26,15 +26,17 @@ for card in ${VIDEO_CARDS}; do
 	IUSE_VIDEO_CARDS+=" video_cards_${card}"
 done
 
-IUSE="${IUSE_VIDEO_CARDS} valgrind"
+IUSE="${IUSE_VIDEO_CARDS} udev valgrind"
 RESTRICT="test" # see bug #236845
 LICENSE="MIT"
 SLOT="0"
 
-RDEPEND="
+COMMON_DEPEND="
 	video_cards_intel? ( >=x11-libs/libpciaccess-0.13.1-r1:=[${MULTILIB_USEDEP}] )"
-DEPEND="${RDEPEND}
+DEPEND="${COMMON_DEPEND}
 	valgrind? ( dev-util/valgrind )"
+RDEPEND="${COMMON_DEPEND}
+	udev? ( virtual/udev )"
 BDEPEND="${PYTHON_DEPS}
 	$(python_gen_any_dep 'dev-python/docutils[${PYTHON_USEDEP}]')"
 
@@ -44,8 +46,7 @@ python_check_deps() {
 
 multilib_src_configure() {
 	local emesonargs=(
-		# Udev is only used by tests now.
-		-Dudev=false
+		$(meson_use udev)
 		-Dcairo-tests=disabled
 		$(meson_feature video_cards_amdgpu amdgpu)
 		$(meson_feature video_cards_exynos exynos)