wlroots depends on wayland-server-1.16

dev-libs/wayland/Manifest

@@ -0,0 +1,2 @@
+DIST wayland-1.16.0.tar.xz 435216 BLAKE2B 862cc8ca9da060f9b8345aa0a62a4af76a31562246b75d2679bcf30cc894cc94ec28f97951f766b6e5297b2e113cd8b08e5682dacbfc79544c0085995693ec55 SHA512 64eca2b1c0bc7913508a5499dae87e2723c712d8024acbb4c77c3c4a6c20de78c10704ae9827fd034116ca540a547aeec28c5a1e3bd382b23f85231424b0f49c
+EBUILD wayland-1.16.0.ebuild 1745 BLAKE2B 833f9fa82246d92583090cc859fd98fe1084e4ce1f82f1ed135da2d6b48e075174239de3dc824a7a6f08c663d6b14807af593456da1a5c99617799b679792179 SHA512 d13a68804828eed61dddb4ca73e91898ad316fc7adbcb0bc94c73a13f4cbb6d6bf73787bcfa39724baa07aa9a49305d963edf0b0c7fe567d499dc4ba9d9497d1

dev-libs/wayland/wayland-1.16.0.ebuild

@@ -0,0 +1,73 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+EGIT_REPO_URI="https://anongit.freedesktop.org/git/wayland/wayland.git"
+
+if [[ ${PV} = 9999* ]]; then
+	GIT_ECLASS="git-r3"
+fi
+
+inherit autotools libtool ltprune multilib-minimal toolchain-funcs $GIT_ECLASS
+
+DESCRIPTION="Wayland protocol libraries"
+HOMEPAGE="https://wayland.freedesktop.org/"
+
+if [[ $PV = 9999* ]]; then
+	SRC_URI=""
+else
+	SRC_URI="https://wayland.freedesktop.org/releases/${P}.tar.xz"
+	KEYWORDS="alpha amd64 arm ~arm64 hppa ia64 ~m68k ~mips ppc ppc64 ~s390 ~sh sparc x86"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+IUSE="doc static-libs"
+
+RDEPEND=">=dev-libs/expat-2.1.0-r3:=[${MULTILIB_USEDEP}]
+	>=virtual/libffi-3.0.13-r1:=[${MULTILIB_USEDEP}]
+	dev-libs/libxml2:=
+	!<media-libs/mesa-18.1.1-r1"
+DEPEND="${RDEPEND}
+	doc? (
+		>=app-doc/doxygen-1.6[dot]
+		app-text/xmlto
+		>=media-gfx/graphviz-2.26.0
+		sys-apps/grep[pcre]
+	)
+	virtual/pkgconfig"
+
+src_prepare() {
+	default
+	[[ $PV = 9999* ]] && eautoreconf || elibtoolize
+}
+
+multilib_src_configure() {
+	local myconf
+	if tc-is-cross-compiler ; then
+		myconf+=' --with-host-scanner '
+	fi
+
+	ECONF_SOURCE="${S}" econf \
+		--disable-static \
+		$(multilib_native_use_enable doc documentation) \
+		$(multilib_native_enable dtd-validation) \
+		${myconf}
+}
+
+multilib_src_install_all() {
+	prune_libtool_files
+	einstalldocs
+}
+
+src_test() {
+	# We set it on purpose to only a short subdir name, as socket paths are
+	# created in there, which are 108 byte limited. With this it hopefully
+	# barely fits to the limit with /var/tmp/portage/$CAT/$PF/temp/xdr
+	export XDG_RUNTIME_DIR="${T}"/xdr
+	mkdir "${XDG_RUNTIME_DIR}" || die
+	chmod 0700 "${XDG_RUNTIME_DIR}" || die
+
+	multilib-minimal_src_test
+}

dev-libs/wlroots/Manifest

@@ -1 +1 @@
-EBUILD wlroots-9999.ebuild 1470 BLAKE2B 8a09fef952ae56ef5bf723a5a7be052fc10dc7e0efbd1634ebee5af5ef89ef8a959b6d04a2516a6b227605b508071351777ab00711328c74eda4f227343c2ed8 SHA512 fdb257409bb034cf8b3f718a67c01ee1a23db51592a6c01925b09204a4e6ee2e64c98fefdcf63b00d84430ed7ff0d12dfc5725efd2db1815d5f5a01b9765c863
+EBUILD wlroots-9999.ebuild 1501 BLAKE2B dda351dbcef89e66867b3e81a250aee6808ea9d702cea501facef37af7300382f348ec484fe604040ccfd3e21daa25a6940e289727ff577b034e57c546cb856f SHA512 084aa4e5093ee222bb47522f36c2b60235ffcc6fbd01a5c93bfa2b21adc24b0e066daf1c91ad37f015fcb1edd84454d2d9c2b77e3299d0add0723b1ab10bcbf7

dev-libs/wlroots/wlroots-9999.ebuild

@@ -18,11 +18,11 @@ IUSE="systemd elogind xwayland x11-backend rootston examples libcap"
 
 REQUIRED_USE="systemd? ( !elogind ) elogind? ( !systemd )"
 
-RDEPEND="dev-libs/wayland
-	dev-libs/wayland-protocols
-	media-libs/mesa[gbm,gles2,wayland]
+RDEPEND=">=dev-libs/wayland-1.16
+	>=dev-libs/wayland-protocols-1.15
+	>=media-libs/mesa-17.1.0[gbm,gles2,wayland]
 	x11-libs/libdrm
-	dev-libs/libinput
+	>=dev-libs/libinput-1.7.0
 	x11-libs/libxkbcommon
 	virtual/udev
 	x11-libs/pixman