gentoo resync : 17.02.2020

3 files changed, 1093 insertions, 0 deletions

diff --git a/media-libs/mesa/Manifest b/media-libs/mesa/Manifest
index 96bbee8f5dac..2b06a1c63377 100644
--- a/media-libs/mesa/Manifest
+++ b/media-libs/mesa/Manifest
@@ -1,10 +1,14 @@
 DIST mesa-19.2.8.tar.xz 11462168 BLAKE2B c49d6d3d10b4c85534a75e4bea29fc8b7526c784af5068764de623d40cbb59ecb96beb1969fa1a13815b6bd259bb98faaf42e4969792c6a75ce702d4b2e57155 SHA512 9bedc2f1a5296da96c1a2a491edaea701e70f683b26eac076e8cbef2230156d5d5ddb2330c3a2530afd4982a9893d76ded8d54bc73a98c846de0c3dfa3634c43
 DIST mesa-19.3.2.tar.xz 11834324 BLAKE2B 114912816a08424da1d55c65d8ff4fb97d58022f5968d37938055e0b0fcdfeeebdbdca3c28d187fd85aaf6385d3a1bfbfe3f011f410e9a991519d34cb81697b5 SHA512 fb69999fa7a15cd6f2c254fb6e8fe635e56dc49a5c2c762a96c77815cbad77060b8f81a02e67ac9ec58092ab866e080fb928086a5ac1e61c3efe882e5825cd28
 DIST mesa-19.3.3.tar.xz 11938700 BLAKE2B a2fd88e8c2d8b189ddf4fcebe324d2f6c00e0c101a565eeb783f50ecc7b2b85f3fe698822788807ab9aaf0403a4d27b7c469bd73c891f535e220b9a0204059f9 SHA512 1f792fbde71132afd4a43d6abe6a3d640f375e83641c6144c82312774434c9588ffba65a3ba38394947bd753656aa85213b6cd9f745cec0040c0559eb41f0dc9
+DIST mesa-19.3.4.tar.xz 11968288 BLAKE2B be39a2ca08d91f8afbc2f3a47d596b14445fac62600f64d627b23d63b340b002bc05246eece95e19b33485a92c01f7980fff52b2375b7a2053161e0aa87d0b38 SHA512 2bbb3dc8f1d839f11fe12cc959393cd69607fa6714b2166b80299e0559d2d3b0ac38ed4e15ac3e5f472264eb24536d1901d350f7409f3a7e00d6f4ccbb2312fb
 DIST mesa-20.0.0-rc2.tar.xz 12100548 BLAKE2B 6bc2130dd7920d2a6eee845d4f53633e609ec2f8a740e39df23a732db842dbe5e0da6374dd0a8b2dfbd938ef1d0de55281a80c061d568dd609f8ac78da528aee SHA512 27e23925ce7e3a38954088db47d564776c4ac7e028d30ef5c58229b3182b461ece37863a69bc42ea4ff0a4817c46c0b0ca8d70f6fafddb5c3fe60bd9c429563b
+DIST mesa-20.0.0-rc3.tar.xz 12107300 BLAKE2B 937cca2152bf2d8c3fea267409d5ec87ebd44e47e9928860fe44d572e1e0b6f6821d786d11dc4e4a149a06f15fb0d51458c0d26d0ce3321bd50a47c6e3305a36 SHA512 df873cf961e641b9d9e9a6ce7eccde1a865e9125507e304b1600c6c28f15f89f9b66898a5a474f08a8ad05781d46db532fc7aedf92de3bb73b9ed1f2ba24b6cb
 EBUILD mesa-19.2.8.ebuild 14496 BLAKE2B 1135c0e5ac0a205e7e8fa5ad581b2d4d5b08447c71c76be0d97281de65b58ef7531442d61ad8ae248e4488d1664defba56831beb994473488a9ca0ce35d2b4b0 SHA512 0428f593206f9582a8f083fca0148dcd82b1d77776fb0f766f80157f35f7756c075f0dba18e474e94f11ee28ba750eff8890d78ee0d5abf861e0722090329f7e
 EBUILD mesa-19.3.2.ebuild 14486 BLAKE2B 33d8a963751b081b312b15f53d109bfc3d365d9d44c8c75a2d39a3ef9f06259c9e22d725a57b9003966c4206d5335345795ac7f466d5dbc45623ce198d60657f SHA512 b4cfe959b194238f61da07496eb594391f0de2f50864b47f6cbfa3fdd890b89bbf8d691bd6ba0f3c619972a6d2f52e5b2bf8113fea54856957ebad254b96b28b
 EBUILD mesa-19.3.3.ebuild 14486 BLAKE2B 33d8a963751b081b312b15f53d109bfc3d365d9d44c8c75a2d39a3ef9f06259c9e22d725a57b9003966c4206d5335345795ac7f466d5dbc45623ce198d60657f SHA512 b4cfe959b194238f61da07496eb594391f0de2f50864b47f6cbfa3fdd890b89bbf8d691bd6ba0f3c619972a6d2f52e5b2bf8113fea54856957ebad254b96b28b
+EBUILD mesa-19.3.4.ebuild 14486 BLAKE2B 33d8a963751b081b312b15f53d109bfc3d365d9d44c8c75a2d39a3ef9f06259c9e22d725a57b9003966c4206d5335345795ac7f466d5dbc45623ce198d60657f SHA512 b4cfe959b194238f61da07496eb594391f0de2f50864b47f6cbfa3fdd890b89bbf8d691bd6ba0f3c619972a6d2f52e5b2bf8113fea54856957ebad254b96b28b
 EBUILD mesa-20.0.0_rc2.ebuild 14326 BLAKE2B f3de76318c8e1440d994b944f6e1f6ff8a6ebb34543aef009af2291c9e3269c793d266208c6d9a8c2303be396fa6cba28fcface670c50cc537eaaefed020f473 SHA512 dad54d1e532a5d46250a0128dd11f157779841f44763a6bcf27085caa20635c08d9300cc881eb0da9472de592d264ee3a61cc488aa8eff62ee5095d370c18a31
+EBUILD mesa-20.0.0_rc3.ebuild 14326 BLAKE2B f3de76318c8e1440d994b944f6e1f6ff8a6ebb34543aef009af2291c9e3269c793d266208c6d9a8c2303be396fa6cba28fcface670c50cc537eaaefed020f473 SHA512 dad54d1e532a5d46250a0128dd11f157779841f44763a6bcf27085caa20635c08d9300cc881eb0da9472de592d264ee3a61cc488aa8eff62ee5095d370c18a31
 EBUILD mesa-9999.ebuild 14367 BLAKE2B f943f71814589c1298bb2fa36e20fb440185f0b1ad56126268fe25ac2ba364723a1f09e29af71cbc1b54b903dad90d6f86141cc2ce95f0a4009279ae5ab4dc81 SHA512 44fedc245b2088bc41fe5c88fd8bf33a02378ed18fd33f43f04b0cf6dbd5af51f7445718c0239745677b268153f5b68e803a3c6e6374c9640320021fcbf0de4b
 MISC metadata.xml 1917 BLAKE2B 795c4e550486eeb2f1fca9f43ad653c1ea45ba836677a3e68863d38faf5ccbcb140699f10366b2e1449718ffc4104830f378560e8b4646d5892b70a5bbe46262 SHA512 1133638886b3c039f15f7a8fa4ce55684db65f84e9d8c6b50ad8e2de4370d4303c6852c7d22239681923b5eb7fe6ebd77ee2caa41bb1210507268d3c1a69353d
diff --git a/media-libs/mesa/mesa-19.3.4.ebuild b/media-libs/mesa/mesa-19.3.4.ebuild
new file mode 100644
index 000000000000..26304ad69b1a
--- /dev/null
+++ b/media-libs/mesa/mesa-19.3.4.ebuild
@@ -0,0 +1,547 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{6,7,8} )
+
+inherit llvm meson multilib-minimal pax-utils python-any-r1
+
+OPENGL_DIR="xorg-x11"
+
+MY_P="${P/_/-}"
+
+DESCRIPTION="OpenGL-like graphic library for Linux"
+HOMEPAGE="https://www.mesa3d.org/ https://mesa.freedesktop.org/"
+
+if [[ ${PV} == 9999 ]]; then
+	EGIT_REPO_URI="https://gitlab.freedesktop.org/mesa/mesa.git"
+	inherit git-r3
+else
+	SRC_URI="https://mesa.freedesktop.org/archive/${MY_P}.tar.xz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-linux ~x86-linux ~sparc-solaris ~x64-solaris ~x86-solaris"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+RESTRICT="
+	!test? ( test )
+"
+
+RADEON_CARDS="r100 r200 r300 r600 radeon radeonsi"
+VIDEO_CARDS="${RADEON_CARDS} freedreno i915 i965 intel iris lima nouveau panfrost vc4 virgl vivante vmware"
+for card in ${VIDEO_CARDS}; do
+	IUSE_VIDEO_CARDS+=" video_cards_${card}"
+done
+
+IUSE="${IUSE_VIDEO_CARDS}
+	+classic d3d9 debug +dri3 +egl +gallium +gbm gles1 +gles2 libglvnd +llvm
+	lm-sensors opencl osmesa pax_kernel selinux test unwind vaapi valgrind
+	vdpau vulkan vulkan-overlay wayland +X xa xvmc"
+
+REQUIRED_USE="
+	d3d9?   ( dri3 || ( video_cards_iris video_cards_r300 video_cards_r600 video_cards_radeonsi video_cards_nouveau video_cards_vmware ) )
+	gles1?  ( egl )
+	gles2?  ( egl )
+	vulkan? ( dri3
+			  || ( video_cards_i965 video_cards_iris video_cards_radeonsi )
+			  video_cards_radeonsi? ( llvm ) )
+	vulkan-overlay? ( vulkan )
+	wayland? ( egl gbm )
+	video_cards_freedreno?  ( gallium )
+	video_cards_intel?  ( classic )
+	video_cards_i915?   ( || ( classic gallium ) )
+	video_cards_i965?   ( classic )
+	video_cards_iris?   ( gallium )
+	video_cards_lima?   ( gallium )
+	video_cards_nouveau? ( || ( classic gallium ) )
+	video_cards_panfrost? ( gallium )
+	video_cards_radeon? ( || ( classic gallium )
+						  gallium? ( x86? ( llvm ) amd64? ( llvm ) ) )
+	video_cards_r100?   ( classic )
+	video_cards_r200?   ( classic )
+	video_cards_r300?   ( gallium x86? ( llvm ) amd64? ( llvm ) )
+	video_cards_r600?   ( gallium )
+	video_cards_radeonsi?   ( gallium llvm )
+	video_cards_vc4? ( gallium )
+	video_cards_virgl? ( gallium )
+	video_cards_vivante? ( gallium gbm )
+	video_cards_vmware? ( gallium )
+	xa? ( X )
+	xvmc? ( X )
+"
+
+LIBDRM_DEPSTRING=">=x11-libs/libdrm-2.4.100"
+RDEPEND="
+	!app-eselect/eselect-mesa
+	>=dev-libs/expat-2.1.0-r3:=[${MULTILIB_USEDEP}]
+	>=sys-libs/zlib-1.2.8[${MULTILIB_USEDEP}]
+	libglvnd? (
+		>=media-libs/libglvnd-1.2.0-r1[${MULTILIB_USEDEP}]
+		!app-eselect/eselect-opengl
+	)
+	!libglvnd? (
+		>=app-eselect/eselect-opengl-1.3.0
+	)
+	gallium? (
+		unwind? ( sys-libs/libunwind[${MULTILIB_USEDEP}] )
+		llvm? (
+			video_cards_radeonsi? (
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+			video_cards_r600? (
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+			video_cards_radeon? (
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+		)
+		lm-sensors? ( sys-apps/lm-sensors:=[${MULTILIB_USEDEP}] )
+		opencl? (
+					dev-libs/ocl-icd[khronos-headers,${MULTILIB_USEDEP}]
+					dev-libs/libclc
+					virtual/libelf:0=[${MULTILIB_USEDEP}]
+				)
+		vaapi? (
+			>=x11-libs/libva-1.7.3:=[${MULTILIB_USEDEP}]
+		)
+		vdpau? ( >=x11-libs/libvdpau-1.1:=[${MULTILIB_USEDEP}] )
+		xvmc? ( >=x11-libs/libXvMC-1.0.8:=[${MULTILIB_USEDEP}] )
+	)
+	selinux? ( sys-libs/libselinux[${MULTILIB_USEDEP}] )
+	wayland? (
+		>=dev-libs/wayland-1.15.0:=[${MULTILIB_USEDEP}]
+		>=dev-libs/wayland-protocols-1.8
+	)
+	${LIBDRM_DEPSTRING}[video_cards_freedreno?,video_cards_nouveau?,video_cards_vc4?,video_cards_vivante?,video_cards_vmware?,${MULTILIB_USEDEP}]
+	video_cards_intel? (
+		!video_cards_i965? ( ${LIBDRM_DEPSTRING}[video_cards_intel] )
+	)
+	video_cards_i915? ( ${LIBDRM_DEPSTRING}[video_cards_intel] )
+	vulkan-overlay? ( dev-util/glslang:0=[${MULTILIB_USEDEP}] )
+	X? (
+		>=x11-libs/libX11-1.6.2:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libxshmfence-1.1:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libXdamage-1.1.4-r1:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libXext-1.3.2:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libXxf86vm-1.1.3:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libxcb-1.13:=[${MULTILIB_USEDEP}]
+		x11-libs/libXfixes:=[${MULTILIB_USEDEP}]
+	)
+"
+for card in ${RADEON_CARDS}; do
+	RDEPEND="${RDEPEND}
+		video_cards_${card}? ( ${LIBDRM_DEPSTRING}[video_cards_radeon] )
+	"
+done
+RDEPEND="${RDEPEND}
+	video_cards_radeonsi? ( ${LIBDRM_DEPSTRING}[video_cards_amdgpu] )
+"
+
+# Please keep the LLVM dependency block separate. Since LLVM is slotted,
+# we need to *really* make sure we're not pulling one than more slot
+# simultaneously.
+#
+# How to use it:
+# 1. List all the working slots (with min versions) in ||, newest first.
+# 2. Update the := to specify *max* version, e.g. < 10.
+# 3. Specify LLVM_MAX_SLOT, e.g. 9.
+LLVM_MAX_SLOT="9"
+LLVM_DEPSTR="
+	|| (
+		sys-devel/llvm:9[${MULTILIB_USEDEP}]
+		sys-devel/llvm:8[${MULTILIB_USEDEP}]
+	)
+	sys-devel/llvm:=[${MULTILIB_USEDEP}]
+"
+LLVM_DEPSTR_AMDGPU=${LLVM_DEPSTR//]/,llvm_targets_AMDGPU(-)]}
+CLANG_DEPSTR=${LLVM_DEPSTR//llvm/clang}
+CLANG_DEPSTR_AMDGPU=${CLANG_DEPSTR//]/,llvm_targets_AMDGPU(-)]}
+RDEPEND="${RDEPEND}
+	gallium? (
+		llvm? (
+			opencl? (
+				video_cards_r600? (
+					${CLANG_DEPSTR_AMDGPU}
+				)
+				!video_cards_r600? (
+					video_cards_radeonsi? (
+						${CLANG_DEPSTR_AMDGPU}
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeonsi? (
+						video_cards_radeon? (
+							${CLANG_DEPSTR_AMDGPU}
+						)
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeon? (
+						!video_cards_radeonsi? (
+							${CLANG_DEPSTR}
+						)
+					)
+				)
+			)
+			!opencl? (
+				video_cards_r600? (
+					${LLVM_DEPSTR_AMDGPU}
+				)
+				!video_cards_r600? (
+					video_cards_radeonsi? (
+						${LLVM_DEPSTR_AMDGPU}
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeonsi? (
+						video_cards_radeon? (
+							${LLVM_DEPSTR_AMDGPU}
+						)
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeon? (
+						!video_cards_radeonsi? (
+							${LLVM_DEPSTR}
+						)
+					)
+				)
+			)
+		)
+	)
+"
+unset {LLVM,CLANG}_DEPSTR{,_AMDGPU}
+
+DEPEND="${RDEPEND}
+	valgrind? ( dev-util/valgrind )
+	X? (
+		x11-libs/libXrandr[${MULTILIB_USEDEP}]
+		x11-base/xorg-proto
+	)
+"
+BDEPEND="
+	${PYTHON_DEPS}
+	opencl? (
+		>=sys-devel/gcc-4.6
+	)
+	sys-devel/bison
+	sys-devel/flex
+	sys-devel/gettext
+	virtual/pkgconfig
+	$(python_gen_any_dep ">=dev-python/mako-0.8.0[\${PYTHON_USEDEP}]")
+"
+
+S="${WORKDIR}/${MY_P}"
+EGIT_CHECKOUT_DIR=${S}
+
+QA_WX_LOAD="
+x86? (
+	usr/lib*/libglapi.so.0.0.0
+	usr/lib*/libGLESv1_CM.so.1.1.0
+	usr/lib*/libGLESv2.so.2.0.0
+	usr/lib*/libGL.so.1.2.0
+	usr/lib*/libOSMesa.so.8.0.0
+	libglvnd? ( usr/lib/libGLX_mesa.so.0.0.0 )
+)"
+
+llvm_check_deps() {
+	local flags=${MULTILIB_USEDEP}
+	if use video_cards_r600 || use video_cards_radeon || use video_cards_radeonsi
+	then
+		flags+=",llvm_targets_AMDGPU(-)"
+	fi
+
+	if use opencl; then
+		has_version "sys-devel/clang:${LLVM_SLOT}[${flags}]" || return 1
+	fi
+	has_version "sys-devel/llvm:${LLVM_SLOT}[${flags}]"
+}
+
+pkg_pretend() {
+	if use opencl; then
+		if ! use video_cards_r600 &&
+		   ! use video_cards_radeonsi; then
+			ewarn "Ignoring USE=opencl     since VIDEO_CARDS does not contain r600 or radeonsi"
+		fi
+	fi
+
+	if use vaapi; then
+		if ! use video_cards_r600 &&
+		   ! use video_cards_radeonsi &&
+		   ! use video_cards_nouveau; then
+			ewarn "Ignoring USE=vaapi      since VIDEO_CARDS does not contain r600, radeonsi, or nouveau"
+		fi
+	fi
+
+	if use vdpau; then
+		if ! use video_cards_r300 &&
+		   ! use video_cards_r600 &&
+		   ! use video_cards_radeonsi &&
+		   ! use video_cards_nouveau; then
+			ewarn "Ignoring USE=vdpau      since VIDEO_CARDS does not contain r300, r600, radeonsi, or nouveau"
+		fi
+	fi
+
+	if use xa; then
+		if ! use video_cards_freedreno &&
+		   ! use video_cards_nouveau &&
+		   ! use video_cards_vmware; then
+			ewarn "Ignoring USE=xa         since VIDEO_CARDS does not contain freedreno, nouveau, or vmware"
+		fi
+	fi
+
+	if use xvmc; then
+		if ! use video_cards_r600 &&
+		   ! use video_cards_nouveau; then
+			ewarn "Ignoring USE=xvmc       since VIDEO_CARDS does not contain r600 or nouveau"
+		fi
+	fi
+
+	if ! use gallium; then
+		use lm-sensors && ewarn "Ignoring USE=lm-sensors since USE does not contain gallium"
+		use llvm       && ewarn "Ignoring USE=llvm       since USE does not contain gallium"
+		use opencl     && ewarn "Ignoring USE=opencl     since USE does not contain gallium"
+		use vaapi      && ewarn "Ignoring USE=vaapi      since USE does not contain gallium"
+		use vdpau      && ewarn "Ignoring USE=vdpau      since USE does not contain gallium"
+		use unwind     && ewarn "Ignoring USE=unwind     since USE does not contain gallium"
+		use xa         && ewarn "Ignoring USE=xa         since USE does not contain gallium"
+		use xvmc       && ewarn "Ignoring USE=xvmc       since USE does not contain gallium"
+	fi
+
+	if ! use llvm; then
+		use opencl     && ewarn "Ignoring USE=opencl     since USE does not contain llvm"
+	fi
+}
+
+python_check_deps() {
+	has_version -b ">=dev-python/mako-0.8.0[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	# warning message for bug 459306
+	if use llvm && has_version sys-devel/llvm[!debug=]; then
+		ewarn "Mismatch between debug USE flags in media-libs/mesa and sys-devel/llvm"
+		ewarn "detected! This can cause problems. For details, see bug 459306."
+	fi
+
+	if use llvm; then
+		llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	local emesonargs=()
+
+	if use classic; then
+		# Intel code
+		dri_driver_enable video_cards_i915 i915
+		dri_driver_enable video_cards_i965 i965
+		if ! use video_cards_i915 && \
+			! use video_cards_i965; then
+			dri_driver_enable video_cards_intel i915 i965
+		fi
+
+		# Nouveau code
+		dri_driver_enable video_cards_nouveau nouveau
+
+		# ATI code
+		dri_driver_enable video_cards_r100 r100
+		dri_driver_enable video_cards_r200 r200
+		if ! use video_cards_r100 && \
+			! use video_cards_r200; then
+			dri_driver_enable video_cards_radeon r100 r200
+		fi
+	fi
+
+	emesonargs+=( -Dplatforms=surfaceless$(use X && echo ",x11")$(use wayland && echo ",wayland")$(use gbm && echo ",drm") )
+
+	if use gallium; then
+		emesonargs+=(
+			$(meson_use llvm)
+			$(meson_use lm-sensors lmsensors)
+			$(meson_use unwind libunwind)
+		)
+
+		if use video_cards_iris ||
+		   use video_cards_r300 ||
+		   use video_cards_r600 ||
+		   use video_cards_radeonsi ||
+		   use video_cards_nouveau ||
+		   use video_cards_vmware; then
+			emesonargs+=($(meson_use d3d9 gallium-nine))
+		else
+			emesonargs+=(-Dgallium-nine=false)
+		fi
+
+		if use video_cards_r600 ||
+		   use video_cards_radeonsi ||
+		   use video_cards_nouveau; then
+			emesonargs+=($(meson_use vaapi gallium-va))
+			use vaapi && emesonargs+=( -Dva-libs-path="${EPREFIX}"/usr/$(get_libdir)/va/drivers )
+		else
+			emesonargs+=(-Dgallium-va=false)
+		fi
+
+		if use video_cards_r300 ||
+		   use video_cards_r600 ||
+		   use video_cards_radeonsi ||
+		   use video_cards_nouveau; then
+			emesonargs+=($(meson_use vdpau gallium-vdpau))
+		else
+			emesonargs+=(-Dgallium-vdpau=false)
+		fi
+
+		if use video_cards_freedreno ||
+		   use video_cards_nouveau ||
+		   use video_cards_vmware; then
+			emesonargs+=($(meson_use xa gallium-xa))
+		else
+			emesonargs+=(-Dgallium-xa=false)
+		fi
+
+		if use video_cards_r600 ||
+		   use video_cards_nouveau; then
+			emesonargs+=($(meson_use xvmc gallium-xvmc))
+		else
+			emesonargs+=(-Dgallium-xvmc=false)
+		fi
+
+		if use video_cards_freedreno ||
+		   use video_cards_lima ||
+		   use video_cards_panfrost ||
+		   use video_cards_vc4 ||
+		   use video_cards_vivante; then
+			gallium_enable -- kmsro
+		fi
+
+		gallium_enable video_cards_lima lima
+		gallium_enable video_cards_panfrost panfrost
+		gallium_enable video_cards_vc4 vc4
+		gallium_enable video_cards_vivante etnaviv
+		gallium_enable video_cards_vmware svga
+		gallium_enable video_cards_nouveau nouveau
+
+		# Only one i915 driver (classic vs gallium). Default to classic.
+		if ! use classic; then
+			gallium_enable video_cards_i915 i915
+			if ! use video_cards_i915 && \
+				! use video_cards_i965; then
+				gallium_enable video_cards_intel i915
+			fi
+		fi
+
+		gallium_enable video_cards_iris iris
+
+		gallium_enable video_cards_r300 r300
+		gallium_enable video_cards_r600 r600
+		gallium_enable video_cards_radeonsi radeonsi
+		if ! use video_cards_r300 && \
+			! use video_cards_r600; then
+			gallium_enable video_cards_radeon r300 r600
+		fi
+
+		gallium_enable video_cards_freedreno freedreno
+		gallium_enable video_cards_virgl virgl
+
+		# opencl stuff
+		emesonargs+=(
+			-Dgallium-opencl="$(usex opencl icd disabled)"
+		)
+	fi
+
+	if use vulkan; then
+		vulkan_enable video_cards_i965 intel
+		vulkan_enable video_cards_iris intel
+		vulkan_enable video_cards_radeonsi amd
+	fi
+
+	# x86 hardened pax_kernel needs glx-rts, bug 240956
+	if [[ ${ABI} == x86 ]]; then
+		emesonargs+=( $(meson_use pax_kernel glx-read-only-text) )
+	fi
+
+	if use gallium; then
+		gallium_enable -- swrast
+		emesonargs+=( -Dosmesa=$(usex osmesa gallium none) )
+	else
+		dri_driver_enable -- swrast
+		emesonargs+=( -Dosmesa=$(usex osmesa classic none) )
+	fi
+
+	driver_list() {
+		local drivers="$(sort -u <<< "${1// /$'\n'}")"
+		echo "${drivers//$'\n'/,}"
+	}
+
+	emesonargs+=(
+		$(meson_use test build-tests)
+		-Dglx=$(usex X dri disabled)
+		-Dshared-glapi=true
+		$(meson_use dri3)
+		$(meson_use egl)
+		$(meson_use gbm)
+		$(meson_use gles1)
+		$(meson_use gles2)
+		$(meson_use libglvnd glvnd)
+		$(meson_use selinux)
+		-Dvalgrind=$(usex valgrind auto false)
+		-Ddri-drivers=$(driver_list "${DRI_DRIVERS[*]}")
+		-Dgallium-drivers=$(driver_list "${GALLIUM_DRIVERS[*]}")
+		-Dvulkan-drivers=$(driver_list "${VULKAN_DRIVERS[*]}")
+		$(meson_use vulkan-overlay vulkan-overlay-layer)
+		--buildtype $(usex debug debug plain)
+		-Db_ndebug=$(usex debug false true)
+	)
+	meson_src_configure
+}
+
+multilib_src_compile() {
+	meson_src_compile
+}
+
+multilib_src_install() {
+	meson_src_install
+
+	use libglvnd && rm -f "${D}"/usr/$(get_libdir)/pkgconfig/{egl,gl}.pc
+}
+
+multilib_src_install_all() {
+	einstalldocs
+}
+
+multilib_src_test() {
+	meson test -v -C "${BUILD_DIR}" -t 100
+}
+
+pkg_postinst() {
+	if ! use libglvnd; then
+		# Switch to the xorg implementation.
+		echo
+		eselect opengl set --use-old ${OPENGL_DIR}
+	fi
+}
+
+# $1 - VIDEO_CARDS flag (check skipped for "--")
+# other args - names of DRI drivers to enable
+dri_driver_enable() {
+	if [[ $1 == -- ]] || use $1; then
+		shift
+		DRI_DRIVERS+=("$@")
+	fi
+}
+
+gallium_enable() {
+	if [[ $1 == -- ]] || use $1; then
+		shift
+		GALLIUM_DRIVERS+=("$@")
+	fi
+}
+
+vulkan_enable() {
+	if [[ $1 == -- ]] || use $1; then
+		shift
+		VULKAN_DRIVERS+=("$@")
+	fi
+}
diff --git a/media-libs/mesa/mesa-20.0.0_rc3.ebuild b/media-libs/mesa/mesa-20.0.0_rc3.ebuild
new file mode 100644
index 000000000000..39da329b5dd5
--- /dev/null
+++ b/media-libs/mesa/mesa-20.0.0_rc3.ebuild
@@ -0,0 +1,542 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{6,7,8} )
+
+inherit llvm meson multilib-minimal pax-utils python-any-r1
+
+OPENGL_DIR="xorg-x11"
+
+MY_P="${P/_/-}"
+
+DESCRIPTION="OpenGL-like graphic library for Linux"
+HOMEPAGE="https://www.mesa3d.org/ https://mesa.freedesktop.org/"
+
+if [[ ${PV} == 9999 ]]; then
+	EGIT_REPO_URI="https://gitlab.freedesktop.org/mesa/mesa.git"
+	inherit git-r3
+else
+	SRC_URI="https://mesa.freedesktop.org/archive/${MY_P}.tar.xz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-linux ~x86-linux ~sparc-solaris ~x64-solaris ~x86-solaris"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+RESTRICT="
+	!test? ( test )
+"
+
+RADEON_CARDS="r100 r200 r300 r600 radeon radeonsi"
+VIDEO_CARDS="${RADEON_CARDS} freedreno i915 i965 intel iris lima nouveau panfrost vc4 virgl vivante vmware"
+for card in ${VIDEO_CARDS}; do
+	IUSE_VIDEO_CARDS+=" video_cards_${card}"
+done
+
+IUSE="${IUSE_VIDEO_CARDS}
+	+classic d3d9 debug +dri3 +egl +gallium +gbm gles1 +gles2 libglvnd +llvm
+	lm-sensors opencl osmesa selinux test unwind vaapi valgrind vdpau vulkan
+	vulkan-overlay wayland +X xa xvmc"
+
+REQUIRED_USE="
+	d3d9?   ( dri3 || ( video_cards_iris video_cards_r300 video_cards_r600 video_cards_radeonsi video_cards_nouveau video_cards_vmware ) )
+	gles1?  ( egl )
+	gles2?  ( egl )
+	vulkan? ( dri3
+			  || ( video_cards_i965 video_cards_iris video_cards_radeonsi )
+			  video_cards_radeonsi? ( llvm ) )
+	vulkan-overlay? ( vulkan )
+	wayland? ( egl gbm )
+	video_cards_freedreno?  ( gallium )
+	video_cards_intel?  ( classic )
+	video_cards_i915?   ( || ( classic gallium ) )
+	video_cards_i965?   ( classic )
+	video_cards_iris?   ( gallium )
+	video_cards_lima?   ( gallium )
+	video_cards_nouveau? ( || ( classic gallium ) )
+	video_cards_panfrost? ( gallium )
+	video_cards_radeon? ( || ( classic gallium )
+						  gallium? ( x86? ( llvm ) amd64? ( llvm ) ) )
+	video_cards_r100?   ( classic )
+	video_cards_r200?   ( classic )
+	video_cards_r300?   ( gallium x86? ( llvm ) amd64? ( llvm ) )
+	video_cards_r600?   ( gallium )
+	video_cards_radeonsi?   ( gallium llvm )
+	video_cards_vc4? ( gallium )
+	video_cards_virgl? ( gallium )
+	video_cards_vivante? ( gallium gbm )
+	video_cards_vmware? ( gallium )
+	xa? ( X )
+	xvmc? ( X )
+"
+
+LIBDRM_DEPSTRING=">=x11-libs/libdrm-2.4.100"
+RDEPEND="
+	!app-eselect/eselect-mesa
+	>=dev-libs/expat-2.1.0-r3:=[${MULTILIB_USEDEP}]
+	>=sys-libs/zlib-1.2.8[${MULTILIB_USEDEP}]
+	libglvnd? (
+		>=media-libs/libglvnd-1.2.0-r1[${MULTILIB_USEDEP}]
+		!app-eselect/eselect-opengl
+	)
+	!libglvnd? (
+		>=app-eselect/eselect-opengl-1.3.0
+	)
+	gallium? (
+		unwind? ( sys-libs/libunwind[${MULTILIB_USEDEP}] )
+		llvm? (
+			video_cards_radeonsi? (
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+			video_cards_r600? (
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+			video_cards_radeon? (
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+		)
+		lm-sensors? ( sys-apps/lm-sensors:=[${MULTILIB_USEDEP}] )
+		opencl? (
+					dev-libs/ocl-icd[khronos-headers,${MULTILIB_USEDEP}]
+					dev-libs/libclc
+					virtual/libelf:0=[${MULTILIB_USEDEP}]
+				)
+		vaapi? (
+			>=x11-libs/libva-1.7.3:=[${MULTILIB_USEDEP}]
+		)
+		vdpau? ( >=x11-libs/libvdpau-1.1:=[${MULTILIB_USEDEP}] )
+		xvmc? ( >=x11-libs/libXvMC-1.0.8:=[${MULTILIB_USEDEP}] )
+	)
+	selinux? ( sys-libs/libselinux[${MULTILIB_USEDEP}] )
+	wayland? (
+		>=dev-libs/wayland-1.15.0:=[${MULTILIB_USEDEP}]
+		>=dev-libs/wayland-protocols-1.8
+	)
+	${LIBDRM_DEPSTRING}[video_cards_freedreno?,video_cards_nouveau?,video_cards_vc4?,video_cards_vivante?,video_cards_vmware?,${MULTILIB_USEDEP}]
+	video_cards_intel? (
+		!video_cards_i965? ( ${LIBDRM_DEPSTRING}[video_cards_intel] )
+	)
+	video_cards_i915? ( ${LIBDRM_DEPSTRING}[video_cards_intel] )
+	vulkan-overlay? ( dev-util/glslang:0=[${MULTILIB_USEDEP}] )
+	X? (
+		>=x11-libs/libX11-1.6.2:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libxshmfence-1.1:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libXdamage-1.1.4-r1:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libXext-1.3.2:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libXxf86vm-1.1.3:=[${MULTILIB_USEDEP}]
+		>=x11-libs/libxcb-1.13:=[${MULTILIB_USEDEP}]
+		x11-libs/libXfixes:=[${MULTILIB_USEDEP}]
+	)
+"
+for card in ${RADEON_CARDS}; do
+	RDEPEND="${RDEPEND}
+		video_cards_${card}? ( ${LIBDRM_DEPSTRING}[video_cards_radeon] )
+	"
+done
+RDEPEND="${RDEPEND}
+	video_cards_radeonsi? ( ${LIBDRM_DEPSTRING}[video_cards_amdgpu] )
+"
+
+# Please keep the LLVM dependency block separate. Since LLVM is slotted,
+# we need to *really* make sure we're not pulling one than more slot
+# simultaneously.
+#
+# How to use it:
+# 1. List all the working slots (with min versions) in ||, newest first.
+# 2. Update the := to specify *max* version, e.g. < 10.
+# 3. Specify LLVM_MAX_SLOT, e.g. 9.
+LLVM_MAX_SLOT="9"
+LLVM_DEPSTR="
+	|| (
+		sys-devel/llvm:9[${MULTILIB_USEDEP}]
+		sys-devel/llvm:8[${MULTILIB_USEDEP}]
+	)
+	sys-devel/llvm:=[${MULTILIB_USEDEP}]
+"
+LLVM_DEPSTR_AMDGPU=${LLVM_DEPSTR//]/,llvm_targets_AMDGPU(-)]}
+CLANG_DEPSTR=${LLVM_DEPSTR//llvm/clang}
+CLANG_DEPSTR_AMDGPU=${CLANG_DEPSTR//]/,llvm_targets_AMDGPU(-)]}
+RDEPEND="${RDEPEND}
+	gallium? (
+		llvm? (
+			opencl? (
+				video_cards_r600? (
+					${CLANG_DEPSTR_AMDGPU}
+				)
+				!video_cards_r600? (
+					video_cards_radeonsi? (
+						${CLANG_DEPSTR_AMDGPU}
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeonsi? (
+						video_cards_radeon? (
+							${CLANG_DEPSTR_AMDGPU}
+						)
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeon? (
+						!video_cards_radeonsi? (
+							${CLANG_DEPSTR}
+						)
+					)
+				)
+			)
+			!opencl? (
+				video_cards_r600? (
+					${LLVM_DEPSTR_AMDGPU}
+				)
+				!video_cards_r600? (
+					video_cards_radeonsi? (
+						${LLVM_DEPSTR_AMDGPU}
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeonsi? (
+						video_cards_radeon? (
+							${LLVM_DEPSTR_AMDGPU}
+						)
+					)
+				)
+				!video_cards_r600? (
+					!video_cards_radeon? (
+						!video_cards_radeonsi? (
+							${LLVM_DEPSTR}
+						)
+					)
+				)
+			)
+		)
+	)
+"
+unset {LLVM,CLANG}_DEPSTR{,_AMDGPU}
+
+DEPEND="${RDEPEND}
+	valgrind? ( dev-util/valgrind )
+	X? (
+		x11-libs/libXrandr[${MULTILIB_USEDEP}]
+		x11-base/xorg-proto
+	)
+"
+BDEPEND="
+	${PYTHON_DEPS}
+	opencl? (
+		>=sys-devel/gcc-4.6
+	)
+	sys-devel/bison
+	sys-devel/flex
+	sys-devel/gettext
+	virtual/pkgconfig
+	$(python_gen_any_dep ">=dev-python/mako-0.8.0[\${PYTHON_USEDEP}]")
+"
+
+S="${WORKDIR}/${MY_P}"
+EGIT_CHECKOUT_DIR=${S}
+
+QA_WX_LOAD="
+x86? (
+	usr/lib*/libglapi.so.0.0.0
+	usr/lib*/libGLESv1_CM.so.1.1.0
+	usr/lib*/libGLESv2.so.2.0.0
+	usr/lib*/libGL.so.1.2.0
+	usr/lib*/libOSMesa.so.8.0.0
+	libglvnd? ( usr/lib/libGLX_mesa.so.0.0.0 )
+)"
+
+llvm_check_deps() {
+	local flags=${MULTILIB_USEDEP}
+	if use video_cards_r600 || use video_cards_radeon || use video_cards_radeonsi
+	then
+		flags+=",llvm_targets_AMDGPU(-)"
+	fi
+
+	if use opencl; then
+		has_version "sys-devel/clang:${LLVM_SLOT}[${flags}]" || return 1
+	fi
+	has_version "sys-devel/llvm:${LLVM_SLOT}[${flags}]"
+}
+
+pkg_pretend() {
+	if use opencl; then
+		if ! use video_cards_r600 &&
+		   ! use video_cards_radeonsi; then
+			ewarn "Ignoring USE=opencl     since VIDEO_CARDS does not contain r600 or radeonsi"
+		fi
+	fi
+
+	if use vaapi; then
+		if ! use video_cards_r600 &&
+		   ! use video_cards_radeonsi &&
+		   ! use video_cards_nouveau; then
+			ewarn "Ignoring USE=vaapi      since VIDEO_CARDS does not contain r600, radeonsi, or nouveau"
+		fi
+	fi
+
+	if use vdpau; then
+		if ! use video_cards_r300 &&
+		   ! use video_cards_r600 &&
+		   ! use video_cards_radeonsi &&
+		   ! use video_cards_nouveau; then
+			ewarn "Ignoring USE=vdpau      since VIDEO_CARDS does not contain r300, r600, radeonsi, or nouveau"
+		fi
+	fi
+
+	if use xa; then
+		if ! use video_cards_freedreno &&
+		   ! use video_cards_nouveau &&
+		   ! use video_cards_vmware; then
+			ewarn "Ignoring USE=xa         since VIDEO_CARDS does not contain freedreno, nouveau, or vmware"
+		fi
+	fi
+
+	if use xvmc; then
+		if ! use video_cards_r600 &&
+		   ! use video_cards_nouveau; then
+			ewarn "Ignoring USE=xvmc       since VIDEO_CARDS does not contain r600 or nouveau"
+		fi
+	fi
+
+	if ! use gallium; then
+		use lm-sensors && ewarn "Ignoring USE=lm-sensors since USE does not contain gallium"
+		use llvm       && ewarn "Ignoring USE=llvm       since USE does not contain gallium"
+		use opencl     && ewarn "Ignoring USE=opencl     since USE does not contain gallium"
+		use vaapi      && ewarn "Ignoring USE=vaapi      since USE does not contain gallium"
+		use vdpau      && ewarn "Ignoring USE=vdpau      since USE does not contain gallium"
+		use unwind     && ewarn "Ignoring USE=unwind     since USE does not contain gallium"
+		use xa         && ewarn "Ignoring USE=xa         since USE does not contain gallium"
+		use xvmc       && ewarn "Ignoring USE=xvmc       since USE does not contain gallium"
+	fi
+
+	if ! use llvm; then
+		use opencl     && ewarn "Ignoring USE=opencl     since USE does not contain llvm"
+	fi
+}
+
+python_check_deps() {
+	has_version -b ">=dev-python/mako-0.8.0[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	# warning message for bug 459306
+	if use llvm && has_version sys-devel/llvm[!debug=]; then
+		ewarn "Mismatch between debug USE flags in media-libs/mesa and sys-devel/llvm"
+		ewarn "detected! This can cause problems. For details, see bug 459306."
+	fi
+
+	if use llvm; then
+		llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	local emesonargs=()
+
+	if use classic; then
+		# Intel code
+		dri_driver_enable video_cards_i915 i915
+		dri_driver_enable video_cards_i965 i965
+		if ! use video_cards_i915 && \
+			! use video_cards_i965; then
+			dri_driver_enable video_cards_intel i915 i965
+		fi
+
+		# Nouveau code
+		dri_driver_enable video_cards_nouveau nouveau
+
+		# ATI code
+		dri_driver_enable video_cards_r100 r100
+		dri_driver_enable video_cards_r200 r200
+		if ! use video_cards_r100 && \
+			! use video_cards_r200; then
+			dri_driver_enable video_cards_radeon r100 r200
+		fi
+	fi
+
+	emesonargs+=( -Dplatforms=surfaceless$(use X && echo ",x11")$(use wayland && echo ",wayland")$(use gbm && echo ",drm") )
+
+	if use gallium; then
+		emesonargs+=(
+			$(meson_use llvm)
+			$(meson_use lm-sensors lmsensors)
+			$(meson_use unwind libunwind)
+		)
+
+		if use video_cards_iris ||
+		   use video_cards_r300 ||
+		   use video_cards_r600 ||
+		   use video_cards_radeonsi ||
+		   use video_cards_nouveau ||
+		   use video_cards_vmware; then
+			emesonargs+=($(meson_use d3d9 gallium-nine))
+		else
+			emesonargs+=(-Dgallium-nine=false)
+		fi
+
+		if use video_cards_r600 ||
+		   use video_cards_radeonsi ||
+		   use video_cards_nouveau; then
+			emesonargs+=($(meson_use vaapi gallium-va))
+			use vaapi && emesonargs+=( -Dva-libs-path="${EPREFIX}"/usr/$(get_libdir)/va/drivers )
+		else
+			emesonargs+=(-Dgallium-va=false)
+		fi
+
+		if use video_cards_r300 ||
+		   use video_cards_r600 ||
+		   use video_cards_radeonsi ||
+		   use video_cards_nouveau; then
+			emesonargs+=($(meson_use vdpau gallium-vdpau))
+		else
+			emesonargs+=(-Dgallium-vdpau=false)
+		fi
+
+		if use video_cards_freedreno ||
+		   use video_cards_nouveau ||
+		   use video_cards_vmware; then
+			emesonargs+=($(meson_use xa gallium-xa))
+		else
+			emesonargs+=(-Dgallium-xa=false)
+		fi
+
+		if use video_cards_r600 ||
+		   use video_cards_nouveau; then
+			emesonargs+=($(meson_use xvmc gallium-xvmc))
+		else
+			emesonargs+=(-Dgallium-xvmc=false)
+		fi
+
+		if use video_cards_freedreno ||
+		   use video_cards_lima ||
+		   use video_cards_panfrost ||
+		   use video_cards_vc4 ||
+		   use video_cards_vivante; then
+			gallium_enable -- kmsro
+		fi
+
+		gallium_enable video_cards_lima lima
+		gallium_enable video_cards_panfrost panfrost
+		gallium_enable video_cards_vc4 vc4
+		gallium_enable video_cards_vivante etnaviv
+		gallium_enable video_cards_vmware svga
+		gallium_enable video_cards_nouveau nouveau
+
+		# Only one i915 driver (classic vs gallium). Default to classic.
+		if ! use classic; then
+			gallium_enable video_cards_i915 i915
+			if ! use video_cards_i915 && \
+				! use video_cards_i965; then
+				gallium_enable video_cards_intel i915
+			fi
+		fi
+
+		gallium_enable video_cards_iris iris
+
+		gallium_enable video_cards_r300 r300
+		gallium_enable video_cards_r600 r600
+		gallium_enable video_cards_radeonsi radeonsi
+		if ! use video_cards_r300 && \
+			! use video_cards_r600; then
+			gallium_enable video_cards_radeon r300 r600
+		fi
+
+		gallium_enable video_cards_freedreno freedreno
+		gallium_enable video_cards_virgl virgl
+
+		# opencl stuff
+		emesonargs+=(
+			-Dgallium-opencl="$(usex opencl icd disabled)"
+		)
+	fi
+
+	if use vulkan; then
+		vulkan_enable video_cards_i965 intel
+		vulkan_enable video_cards_iris intel
+		vulkan_enable video_cards_radeonsi amd
+	fi
+
+	if use gallium; then
+		gallium_enable -- swrast
+		emesonargs+=( -Dosmesa=$(usex osmesa gallium none) )
+	else
+		dri_driver_enable -- swrast
+		emesonargs+=( -Dosmesa=$(usex osmesa classic none) )
+	fi
+
+	driver_list() {
+		local drivers="$(sort -u <<< "${1// /$'\n'}")"
+		echo "${drivers//$'\n'/,}"
+	}
+
+	emesonargs+=(
+		$(meson_use test build-tests)
+		-Dglx=$(usex X dri disabled)
+		-Dshared-glapi=true
+		$(meson_use dri3)
+		$(meson_use egl)
+		$(meson_use gbm)
+		$(meson_use gles1)
+		$(meson_use gles2)
+		$(meson_use libglvnd glvnd)
+		$(meson_use selinux)
+		-Dvalgrind=$(usex valgrind auto false)
+		-Ddri-drivers=$(driver_list "${DRI_DRIVERS[*]}")
+		-Dgallium-drivers=$(driver_list "${GALLIUM_DRIVERS[*]}")
+		-Dvulkan-drivers=$(driver_list "${VULKAN_DRIVERS[*]}")
+		$(meson_use vulkan-overlay vulkan-overlay-layer)
+		--buildtype $(usex debug debug plain)
+		-Db_ndebug=$(usex debug false true)
+	)
+	meson_src_configure
+}
+
+multilib_src_compile() {
+	meson_src_compile
+}
+
+multilib_src_install() {
+	meson_src_install
+
+	use libglvnd && rm -f "${D}"/usr/$(get_libdir)/pkgconfig/{egl,gl}.pc
+}
+
+multilib_src_install_all() {
+	einstalldocs
+}
+
+multilib_src_test() {
+	meson test -v -C "${BUILD_DIR}" -t 100
+}
+
+pkg_postinst() {
+	if ! use libglvnd; then
+		# Switch to the xorg implementation.
+		echo
+		eselect opengl set --use-old ${OPENGL_DIR}
+	fi
+}
+
+# $1 - VIDEO_CARDS flag (check skipped for "--")
+# other args - names of DRI drivers to enable
+dri_driver_enable() {
+	if [[ $1 == -- ]] || use $1; then
+		shift
+		DRI_DRIVERS+=("$@")
+	fi
+}
+
+gallium_enable() {
+	if [[ $1 == -- ]] || use $1; then
+		shift
+		GALLIUM_DRIVERS+=("$@")
+	fi
+}
+
+vulkan_enable() {
+	if [[ $1 == -- ]] || use $1; then
+		shift
+		VULKAN_DRIVERS+=("$@")
+	fi
+}