[gentoo-commits] proj/musl:master commit in: media-libs/mesa/

[Aric Belsito]

commit:     42fcedcacecc73275fa55306da3d69fcc87f0805
Author:     Aric Belsito <lluixhi <AT> gmail <DOT> com>
AuthorDate: Tue Aug  8 19:48:47 2017 +0000
Commit:     Aric Belsito <lluixhi <AT> gmail <DOT> com>
CommitDate: Tue Aug  8 19:48:47 2017 +0000
URL:        https://gitweb.gentoo.org/proj/musl.git/commit/?id=42fcedca

media-libs/mesa: version bump to 17.1.6/17.2.0_rc3

 media-libs/mesa/Manifest               |   4 +
 media-libs/mesa/mesa-17.1.6.ebuild     | 507 ++++++++++++++++++++++++++++++++
 media-libs/mesa/mesa-17.2.0_rc3.ebuild | 508 +++++++++++++++++++++++++++++++++
 3 files changed, 1019 insertions(+)

diff --git a/media-libs/mesa/Manifest b/media-libs/mesa/Manifest
index 95b6729..33df8c3 100644
--- a/media-libs/mesa/Manifest
+++ b/media-libs/mesa/Manifest
@@ -13,6 +13,8 @@ DIST mesa-17.1.2.tar.xz 9837516 SHA256 0937804f43746339b1f9540d8f9c8b4a1bb3d3eec
 DIST mesa-17.1.3.tar.xz 9861256 SHA256 5f1ee9a8aea2880f887884df2dea0c16dd1b13eb42fd2e52265db0dc1b380e8c SHA512 b487d4f3d7717f379e7aaf66958bbef886fbae219e6e0333123c4623dc7db84109aca8cf07be08c0b79a74bdb198c704073fd549c6e85aa952ed3c97da1a8a94 WHIRLPOOL f9e2634e8a4c9765739ca4db005901d4df077f954e9008c05ee26dfc10e008166e5128096db071e0e26f4bdf244ecb9f8767b8862b018a68d677a3579c789114
 DIST mesa-17.1.4.tar.xz 9899196 SHA256 06f3b0e6a28f0d20b7f3391cf67fe89ae98ecd0a686cd545da76557b6cec9cad SHA512 cb8369f0edd3e17b4eee8da159b9dc487f8144d69fe4b95901e9aa6a924759866f26f91fc2ead7036707eecea41582185e7ce73d54f97bf310f198b72ee0a8e4 WHIRLPOOL 5c313d7b938c58a7e2f59b619161316629ee996025dc5810742c881716cfcee441a8b3641d644fa0bc4aeec6c44c4b1ce99f515a59159a3391cf4948c2bab45a
 DIST mesa-17.1.5.tar.xz 9901876 SHA256 378516b171712687aace4c7ea8b37c85895231d7a6d61e1e27362cf6034fded9 SHA512 a12671afd812b304e1db690b123a9de16332608541f71cc3ee9128a3630c81416d46255e5bdbf19e14e85716b218f447987b555e3bc0081b8b6f392556fa21e2 WHIRLPOOL b3a94172df5061774e7746ca9f2191f0f04ff375cb76406e22a694141d185f650ce04b3fa4f89b054aa3348f3562886982b5b725680d9ab1cdd6108900da91b7
+DIST mesa-17.1.6.tar.xz 9868932 SHA256 0686deadde1f126b20aa67e47e8c50502043eee4ecdf60d5009ffda3cebfee50 SHA512 cf57f29a21208f0a9bc84157f806bcaf6fd0583352449fcb986b05773eeefc99c4040dc41b242782dd5aa9ff7f9c5312b17a4db82d87f600acf165b6acdfc95a WHIRLPOOL 38d6043001798ea9876b55a45222b129596ae92ebb1cc2af36bb0cc8523acce11b38a658d0e8a8afad1b99a49f7d4cdc229b7a3cbb7c15d9858614a91a4994f8
+DIST mesa-17.2.0-rc3.tar.xz 10405100 SHA256 bd417166bc55a74a20e7687738c2f081364637e40a0712989e04b3ba7e404ff2 SHA512 34cc307e82f227fc0398185ac8a349c96631c47e407e883e80523850eeeb0eb4cc445780f61494c2ba81856965d8ae06819330fa54c149808a18db9e872c12b6 WHIRLPOOL 8ea40f6b4a6366b502cd2f2f1ab4bf371dab695b0ed86825a0f0abb36198adfd2d335cf43b668acc4606216a736be41fc735daee1b1b6b6060f4f044bc6f948f
 EBUILD mesa-13.0.5.ebuild 13658 SHA256 c2d8750e43354a05926dd17e7bba27a9c348ea49d723ed3a0045f5b8dd34f639 SHA512 30af415e1448909b0420080edf24b8006cc55d8b0b70d0d9b6f2c5f5d40b710c5ebb463f1203204de5e7e71bcb68564d490bd61be8c52362e0219d62074eb279 WHIRLPOOL de6f514c8d879c41b7f63429d45790f133b1c60412262f0b38bffc5cae69f8621bbbbc988fc851f5c764a7867a5a22885391f80ab342ff4e84cf5b2bf0798a2c
 EBUILD mesa-13.0.6.ebuild 13584 SHA256 3bfff928951edec571894f54fada7bb718e95e94f82806764731d09522b5304d SHA512 1fb15e100deeb50f5de436e2ffe3e131ebe3badb820aa1ddef8cfa691426b42bd3fbe66fd55cd848f9c5f6de9b5dd396f6879813730fb0a234a96a818a71b1cc WHIRLPOOL 6a7d6a0c01a847bfdb8bdeb3fa7ff558e4f3ac77b6f3f4334037ab3098f7763fe26de34378a49a57cbbefdec6ab22952cb0c948517b0885d882e0b92626af585
 EBUILD mesa-17.0.6.ebuild 13603 SHA256 b4e554e727d9e35f77a83d5cb7ae8f19542e3e7ea367d3377496bc73f3e6da47 SHA512 f0415ed538799bc0a74ff94563629b7b86372eba0aae17448e38c190be8211dcd48bad902b876ff54b7c9d65df4d83fd4a22cb197be9ab4d960202ee09d0beb7 WHIRLPOOL c32a1c4d6a7fd06c9782ef980874ee6830b8477733b8c0f656e5a84a7ccd1f99cef19fdc1af913fdf5db62bc76bba75333afc20e96338b57f23a6b5534f152a6
@@ -23,4 +25,6 @@ EBUILD mesa-17.1.2.ebuild 13563 SHA256 7fe23c5eb390594f5918c8778c150b32e6cec8ab0
 EBUILD mesa-17.1.3.ebuild 13510 SHA256 fb31bfe5fa3f48e577f148df82d4aaf65357684e1f6798b8ec99557dea096504 SHA512 ed870976b76a02d697b72f193dbeea49edf1d7e503250b2955dae7e26db2c19be5c3b81a8f99010e3650cd3ee680a4f3983c883ec336d0a2ab3fbdf029543676 WHIRLPOOL 38585d8528ae5c544fdfd8569025db782a51515756f9fa5983269d5b62c7f54cd3febcaf943786335c69bdefa1842ee3f39282a5ba52b52e2171e892d3f0f91d
 EBUILD mesa-17.1.4.ebuild 13510 SHA256 fb31bfe5fa3f48e577f148df82d4aaf65357684e1f6798b8ec99557dea096504 SHA512 ed870976b76a02d697b72f193dbeea49edf1d7e503250b2955dae7e26db2c19be5c3b81a8f99010e3650cd3ee680a4f3983c883ec336d0a2ab3fbdf029543676 WHIRLPOOL 38585d8528ae5c544fdfd8569025db782a51515756f9fa5983269d5b62c7f54cd3febcaf943786335c69bdefa1842ee3f39282a5ba52b52e2171e892d3f0f91d
 EBUILD mesa-17.1.5.ebuild 13510 SHA256 fb31bfe5fa3f48e577f148df82d4aaf65357684e1f6798b8ec99557dea096504 SHA512 ed870976b76a02d697b72f193dbeea49edf1d7e503250b2955dae7e26db2c19be5c3b81a8f99010e3650cd3ee680a4f3983c883ec336d0a2ab3fbdf029543676 WHIRLPOOL 38585d8528ae5c544fdfd8569025db782a51515756f9fa5983269d5b62c7f54cd3febcaf943786335c69bdefa1842ee3f39282a5ba52b52e2171e892d3f0f91d
+EBUILD mesa-17.1.6.ebuild 13510 SHA256 fb31bfe5fa3f48e577f148df82d4aaf65357684e1f6798b8ec99557dea096504 SHA512 ed870976b76a02d697b72f193dbeea49edf1d7e503250b2955dae7e26db2c19be5c3b81a8f99010e3650cd3ee680a4f3983c883ec336d0a2ab3fbdf029543676 WHIRLPOOL 38585d8528ae5c544fdfd8569025db782a51515756f9fa5983269d5b62c7f54cd3febcaf943786335c69bdefa1842ee3f39282a5ba52b52e2171e892d3f0f91d
+EBUILD mesa-17.2.0_rc3.ebuild 13540 SHA256 8c57a4975cbb06ee234154ccbdd663395b892f0b26c719281b589ae12de64eb2 SHA512 3052e8241f5b8d2c33e21ef52add6f0a6671b7b4e6588e0ba6c14aff8cf921ad6324b5806236d1457ee5d8189840f28d419b30849103067d6132ce1d0e76e73a WHIRLPOOL 30831891d0452ad51bd0898dec4fdf3657b748586fbb8f9a26d59855f0c1244995ea0434e272c857ae3dec47994774442920c5742cf000cbc22c76486c2c7680
 MISC metadata.xml 2536 SHA256 d19b63eae85e1a25553e11db8b6e38b31f55810412d7e48680bd78fda4fe4808 SHA512 1cd7e6d44125ee93792e403205fa07b434867764f31135e26997518e5b848ffdc57af6b3591c541531bab45c9bb629b88638001a03c314347c708f743899e666 WHIRLPOOL 561a884f9ea3bc15d070e52e53cf3ea461a94ee33f0b06778595c83ab9e35311367dbe37a681201d19cb0c9610fe7eebfb295e1cf116c2b040d286ee579676ac

diff --git a/media-libs/mesa/mesa-17.1.6.ebuild b/media-libs/mesa/mesa-17.1.6.ebuild
new file mode 100644
index 0000000..4c8cef4
--- /dev/null
+++ b/media-libs/mesa/mesa-17.1.6.ebuild
@@ -0,0 +1,507 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+EGIT_REPO_URI="https://anongit.freedesktop.org/git/mesa/mesa.git"
+
+if [[ ${PV} = 9999 ]]; then
+	GIT_ECLASS="git-r3"
+	EXPERIMENTAL="true"
+fi
+
+PYTHON_COMPAT=( python2_7 )
+
+inherit autotools llvm multilib-minimal python-any-r1 pax-utils ${GIT_ECLASS}
+
+OPENGL_DIR="xorg-x11"
+
+MY_P="${P/_/-}"
+
+DESCRIPTION="OpenGL-like graphic library for Linux"
+HOMEPAGE="https://www.mesa3d.org/"
+
+if [[ $PV == 9999 ]]; then
+	SRC_URI=""
+else
+	SRC_URI="https://mesa.freedesktop.org/archive/${MY_P}.tar.xz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~arm-linux ~x86-linux ~sparc-solaris ~x64-solaris ~x86-solaris"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+RESTRICT="!bindist? ( bindist )"
+
+INTEL_CARDS="i915 i965 intel"
+RADEON_CARDS="r100 r200 r300 r600 radeon radeonsi"
+VIDEO_CARDS="${INTEL_CARDS} ${RADEON_CARDS} freedreno imx nouveau vc4 vivante vmware"
+for card in ${VIDEO_CARDS}; do
+	IUSE_VIDEO_CARDS+=" video_cards_${card}"
+done
+
+IUSE="${IUSE_VIDEO_CARDS}
+	bindist +classic d3d9 debug +dri3 +egl +gallium +gbm gles1 gles2 unwind
+	+llvm +nptl opencl osmesa pax_kernel openmax pic selinux vaapi valgrind
+	vdpau vulkan wayland xvmc xa"
+
+REQUIRED_USE="
+	d3d9?   ( dri3 gallium )
+	llvm?   ( gallium )
+	opencl? ( gallium llvm )
+	openmax? ( gallium )
+	gles1?  ( egl )
+	gles2?  ( egl )
+	vaapi? ( gallium )
+	vdpau? ( gallium )
+	vulkan? ( || ( video_cards_i965 video_cards_radeonsi )
+	          video_cards_radeonsi? ( llvm ) )
+	wayland? ( egl gbm )
+	xa?  ( gallium )
+	video_cards_freedreno?  ( gallium )
+	video_cards_intel?  ( classic )
+	video_cards_i915?   ( || ( classic gallium ) )
+	video_cards_i965?   ( classic )
+	video_cards_imx?    ( gallium )
+	video_cards_nouveau? ( || ( classic gallium ) )
+	video_cards_radeon? ( || ( classic gallium )
+						  gallium? ( x86? ( llvm ) amd64? ( llvm ) ) )
+	video_cards_r100?   ( classic )
+	video_cards_r200?   ( classic )
+	video_cards_r300?   ( gallium x86? ( llvm ) amd64? ( llvm ) )
+	video_cards_r600?   ( gallium )
+	video_cards_radeonsi?   ( gallium llvm )
+	video_cards_vc4? ( gallium )
+	video_cards_vivante? ( gallium gbm )
+	video_cards_vmware? ( gallium )
+"
+
+LIBDRM_DEPSTRING=">=x11-libs/libdrm-2.4.77"
+# keep correct libdrm and dri2proto dep
+# keep blocks in rdepend for binpkg
+RDEPEND="
+	!<x11-base/xorg-server-1.7
+	!<=x11-proto/xf86driproto-2.0.3
+	abi_x86_32? ( !app-emulation/emul-linux-x86-opengl[-abi_x86_32(-)] )
+	classic? ( app-eselect/eselect-mesa )
+	gallium? ( app-eselect/eselect-mesa )
+	>=app-eselect/eselect-opengl-1.3.0
+	>=dev-libs/expat-2.1.0-r3:=[${MULTILIB_USEDEP}]
+	>=sys-libs/zlib-1.2.8[${MULTILIB_USEDEP}]
+	>=x11-libs/libX11-1.6.2:=[${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-1.9.3:=[${MULTILIB_USEDEP}]
+	x11-libs/libXfixes:=[${MULTILIB_USEDEP}]
+	unwind? ( sys-libs/libunwind[${MULTILIB_USEDEP}] )
+	llvm? (
+		video_cards_radeonsi? (
+			virtual/libelf:0=[${MULTILIB_USEDEP}]
+			vulkan? ( >=sys-devel/llvm-3.9.0:=[${MULTILIB_USEDEP}] )
+		)
+		video_cards_r600? (
+			virtual/libelf:0=[${MULTILIB_USEDEP}]
+		)
+		video_cards_radeon? (
+			virtual/libelf:0=[${MULTILIB_USEDEP}]
+		)
+		>=sys-devel/llvm-3.6.0:=[${MULTILIB_USEDEP}]
+	)
+	opencl? (
+				app-eselect/eselect-opencl
+				dev-libs/libclc
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+	openmax? ( >=media-libs/libomxil-bellagio-0.9.3:=[${MULTILIB_USEDEP}] )
+	vaapi? (
+		>=x11-libs/libva-1.6.0:=[${MULTILIB_USEDEP}]
+		video_cards_nouveau? ( !<=x11-libs/libva-vdpau-driver-0.7.4-r3 )
+	)
+	vdpau? ( >=x11-libs/libvdpau-1.1:=[${MULTILIB_USEDEP}] )
+	wayland? ( >=dev-libs/wayland-1.11.0:=[${MULTILIB_USEDEP}] )
+	xvmc? ( >=x11-libs/libXvMC-1.0.8:=[${MULTILIB_USEDEP}] )
+	${LIBDRM_DEPSTRING}[video_cards_freedreno?,video_cards_nouveau?,video_cards_vc4?,video_cards_vivante?,video_cards_vmware?,${MULTILIB_USEDEP}]
+"
+for card in ${INTEL_CARDS}; do
+	RDEPEND="${RDEPEND}
+		video_cards_${card}? ( ${LIBDRM_DEPSTRING}[video_cards_intel] )
+	"
+done
+
+for card in ${RADEON_CARDS}; do
+	RDEPEND="${RDEPEND}
+		video_cards_${card}? ( ${LIBDRM_DEPSTRING}[video_cards_radeon] )
+	"
+done
+RDEPEND="${RDEPEND}
+	video_cards_radeonsi? ( ${LIBDRM_DEPSTRING}[video_cards_amdgpu] )
+"
+
+# FIXME: kill the sys-devel/llvm[video_cards_radeon] compat once
+# LLVM < 3.9 is out of the game
+DEPEND="${RDEPEND}
+	${PYTHON_DEPS}
+	llvm? (
+		video_cards_radeonsi? ( || (
+			sys-devel/llvm[llvm_targets_AMDGPU]
+			sys-devel/llvm[video_cards_radeon]
+		) )
+	)
+	opencl? (
+				>=sys-devel/llvm-3.6.0:=[${MULTILIB_USEDEP}]
+				>=sys-devel/clang-3.6.0:=[${MULTILIB_USEDEP}]
+				>=sys-devel/gcc-4.6
+	)
+	sys-devel/gettext
+	virtual/pkgconfig
+	valgrind? ( dev-util/valgrind )
+	>=x11-proto/dri2proto-2.8-r1:=[${MULTILIB_USEDEP}]
+	dri3? (
+		>=x11-proto/dri3proto-1.0:=[${MULTILIB_USEDEP}]
+		>=x11-proto/presentproto-1.0:=[${MULTILIB_USEDEP}]
+	)
+	>=x11-proto/glproto-1.4.17-r1:=[${MULTILIB_USEDEP}]
+	>=x11-proto/xextproto-7.2.1-r1:=[${MULTILIB_USEDEP}]
+	>=x11-proto/xf86driproto-2.1.1-r1:=[${MULTILIB_USEDEP}]
+	>=x11-proto/xf86vidmodeproto-2.3.1-r1:=[${MULTILIB_USEDEP}]
+"
+[[ ${PV} == 9999 ]] && DEPEND+="
+	sys-devel/bison
+	sys-devel/flex
+	$(python_gen_any_dep ">=dev-python/mako-0.7.3[\${PYTHON_USEDEP}]")
+"
+
+S="${WORKDIR}/${MY_P}"
+EGIT_CHECKOUT_DIR=${S}
+
+QA_WX_LOAD="
+x86? (
+	!pic? (
+		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
+	)
+)"
+
+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 || use opencl; then
+		llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	eapply "${FILESDIR}"/${PN}-11-execinfo.patch
+	eapply "${FILESDIR}"/${PN}-13-musl_endian.patch
+
+	eautoreconf
+
+	eapply_user
+}
+
+multilib_src_configure() {
+	local myconf
+
+	if use classic; then
+		# Configurable DRI drivers
+		driver_enable swrast
+
+		# Intel code
+		driver_enable video_cards_i915 i915
+		driver_enable video_cards_i965 i965
+		if ! use video_cards_i915 && \
+			! use video_cards_i965; then
+			driver_enable video_cards_intel i915 i965
+		fi
+
+		# Nouveau code
+		driver_enable video_cards_nouveau nouveau
+
+		# ATI code
+		driver_enable video_cards_r100 radeon
+		driver_enable video_cards_r200 r200
+		if ! use video_cards_r100 && \
+				! use video_cards_r200; then
+			driver_enable video_cards_radeon radeon r200
+		fi
+	fi
+
+	if use egl; then
+		myconf+=" --with-egl-platforms=x11,surfaceless$(use wayland && echo ",wayland")$(use gbm && echo ",drm")"
+	fi
+
+	if use gallium; then
+		myconf+="
+			$(use_enable d3d9 nine)
+			$(use_enable llvm)
+			$(use_enable openmax omx)
+			$(use_enable vaapi va)
+			$(use_enable vdpau)
+			$(use_enable xa)
+			$(use_enable xvmc)
+		"
+		use vaapi && myconf+=" --with-va-libdir=/usr/$(get_libdir)/va/drivers"
+
+		gallium_enable swrast
+		gallium_enable video_cards_vc4 vc4
+		gallium_enable video_cards_vivante etnaviv
+		gallium_enable video_cards_vmware svga
+		gallium_enable video_cards_nouveau nouveau
+		gallium_enable video_cards_i915 i915
+		gallium_enable video_cards_imx imx
+		if ! use video_cards_i915 && \
+			! use video_cards_i965; then
+			gallium_enable video_cards_intel i915
+		fi
+
+		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
+		# opencl stuff
+		if use opencl; then
+			myconf+="
+				$(use_enable opencl)
+				--with-clang-libdir="${EPREFIX}/usr/lib"
+				"
+		fi
+	fi
+
+	if use vulkan; then
+		vulkan_enable video_cards_i965 intel
+		vulkan_enable video_cards_radeonsi radeon
+	fi
+
+	# x86 hardened pax_kernel needs glx-rts, bug 240956
+	if [[ ${ABI} == x86 ]]; then
+		myconf+=" $(use_enable pax_kernel glx-read-only-text)"
+	fi
+
+	# on abi_x86_32 hardened we need to have asm disable
+	if [[ ${ABI} == x86* ]] && use pic; then
+		myconf+=" --disable-asm"
+	fi
+
+	if use gallium; then
+		myconf+=" $(use_enable osmesa gallium-osmesa)"
+	else
+		myconf+=" $(use_enable osmesa)"
+	fi
+
+	# build fails with BSD indent, bug #428112
+	use userland_GNU || export INDENT=cat
+
+	ECONF_SOURCE="${S}" \
+	econf \
+		--enable-dri \
+		--enable-glx \
+		--enable-shared-glapi \
+		$(use_enable !bindist texture-float) \
+		$(use_enable d3d9 nine) \
+		$(use_enable debug) \
+		$(use_enable dri3) \
+		$(use_enable egl) \
+		$(use_enable gbm) \
+		$(use_enable gles1) \
+		$(use_enable gles2) \
+		$(use_enable nptl glx-tls) \
+		$(use_enable unwind libunwind) \
+		--enable-valgrind=$(usex valgrind auto no) \
+		--enable-llvm-shared-libs \
+		--with-dri-drivers=${DRI_DRIVERS} \
+		--with-gallium-drivers=${GALLIUM_DRIVERS} \
+		--with-vulkan-drivers=${VULKAN_DRIVERS} \
+		PYTHON2="${PYTHON}" \
+		${myconf}
+}
+
+multilib_src_install() {
+	emake install DESTDIR="${D}"
+
+	if use classic || use gallium; then
+			ebegin "Moving DRI/Gallium drivers for dynamic switching"
+			local gallium_drivers=( i915_dri.so i965_dri.so r300_dri.so r600_dri.so swrast_dri.so )
+			keepdir /usr/$(get_libdir)/dri
+			dodir /usr/$(get_libdir)/mesa
+			for x in ${gallium_drivers[@]}; do
+				if [ -f "$(get_libdir)/gallium/${x}" ]; then
+					mv -f "${ED}/usr/$(get_libdir)/dri/${x}" "${ED}/usr/$(get_libdir)/dri/${x/_dri.so/g_dri.so}" \
+						|| die "Failed to move ${x}"
+				fi
+			done
+			if use classic; then
+				emake -C "${BUILD_DIR}/src/mesa/drivers/dri" DESTDIR="${D}" install
+			fi
+			for x in "${ED}"/usr/$(get_libdir)/dri/*.so; do
+				if [ -f ${x} -o -L ${x} ]; then
+					mv -f "${x}" "${x/dri/mesa}" \
+						|| die "Failed to move ${x}"
+				fi
+			done
+			pushd "${ED}"/usr/$(get_libdir)/dri || die "pushd failed"
+			ln -s ../mesa/*.so . || die "Creating symlink failed"
+			# remove symlinks to drivers known to eselect
+			for x in ${gallium_drivers[@]}; do
+				if [ -f ${x} -o -L ${x} ]; then
+					rm "${x}" || die "Failed to remove ${x}"
+				fi
+			done
+			popd
+		eend $?
+	fi
+	if use opencl; then
+		ebegin "Moving Gallium/Clover OpenCL implementation for dynamic switching"
+		local cl_dir="/usr/$(get_libdir)/OpenCL/vendors/mesa"
+		dodir ${cl_dir}/{lib,include}
+		if [ -f "${ED}/usr/$(get_libdir)/libOpenCL.so" ]; then
+			mv -f "${ED}"/usr/$(get_libdir)/libOpenCL.so* \
+			"${ED}"${cl_dir}
+		fi
+		if [ -f "${ED}/usr/include/CL/opencl.h" ]; then
+			mv -f "${ED}"/usr/include/CL \
+			"${ED}"${cl_dir}/include
+		fi
+		eend $?
+	fi
+
+	if use openmax; then
+		echo "XDG_DATA_DIRS=\"${EPREFIX}/usr/share/mesa/xdg\"" > "${T}/99mesaxdgomx"
+		doenvd "${T}"/99mesaxdgomx
+		keepdir /usr/share/mesa/xdg
+	fi
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name '*.la' -delete
+	einstalldocs
+
+	if use !bindist; then
+		dodoc docs/patents.txt
+	fi
+
+	# Install config file for eselect mesa
+	insinto /usr/share/mesa
+	newins "${FILESDIR}/eselect-mesa.conf.9.2" eselect-mesa.conf
+}
+
+multilib_src_test() {
+	if use llvm; then
+		local llvm_tests='lp_test_arit lp_test_arit lp_test_blend lp_test_blend lp_test_conv lp_test_conv lp_test_format lp_test_format lp_test_printf lp_test_printf'
+		pushd src/gallium/drivers/llvmpipe >/dev/null || die
+		emake ${llvm_tests}
+		pax-mark m ${llvm_tests}
+		popd >/dev/null || die
+	fi
+	emake check
+}
+
+pkg_postinst() {
+	# Switch to the xorg implementation.
+	echo
+	eselect opengl set --use-old ${OPENGL_DIR}
+
+	# Select classic/gallium drivers
+	if use classic || use gallium; then
+		eselect mesa set --auto
+	fi
+
+	# Switch to mesa opencl
+	if use opencl; then
+		eselect opencl set --use-old ${PN}
+	fi
+
+	# run omxregister-bellagio to make the OpenMAX drivers known system-wide
+	if use openmax; then
+		ebegin "Registering OpenMAX drivers"
+		BELLAGIO_SEARCH_PATH="${EPREFIX}/usr/$(get_libdir)/libomxil-bellagio0" \
+			OMX_BELLAGIO_REGISTRY=${EPREFIX}/usr/share/mesa/xdg/.omxregister \
+			omxregister-bellagio
+		eend $?
+	fi
+
+	# warn about patent encumbered texture-float
+	if use !bindist; then
+		elog "USE=\"bindist\" was not set. Potentially patent encumbered code was"
+		elog "enabled. Please see patents.txt for an explanation."
+	fi
+
+	if ! has_version media-libs/libtxc_dxtn; then
+		elog "Note that in order to have full S3TC support, it is necessary to install"
+		elog "media-libs/libtxc_dxtn as well. This may be necessary to get nice"
+		elog "textures in some apps, and some others even require this to run."
+	fi
+}
+
+pkg_prerm() {
+	if use openmax; then
+		rm "${EPREFIX}"/usr/share/mesa/xdg/.omxregister
+	fi
+}
+
+# $1 - VIDEO_CARDS flag
+# other args - names of DRI drivers to enable
+# TODO: avoid code duplication for a more elegant implementation
+driver_enable() {
+	case $# in
+		# for enabling unconditionally
+		1)
+			DRI_DRIVERS+=",$1"
+			;;
+		*)
+			if use $1; then
+				shift
+				for i in $@; do
+					DRI_DRIVERS+=",${i}"
+				done
+			fi
+			;;
+	esac
+}
+
+gallium_enable() {
+	case $# in
+		# for enabling unconditionally
+		1)
+			GALLIUM_DRIVERS+=",$1"
+			;;
+		*)
+			if use $1; then
+				shift
+				for i in $@; do
+					GALLIUM_DRIVERS+=",${i}"
+				done
+			fi
+			;;
+	esac
+}
+
+vulkan_enable() {
+	case $# in
+		# for enabling unconditionally
+		1)
+			VULKAN_DRIVERS+=",$1"
+			;;
+		*)
+			if use $1; then
+				shift
+				for i in $@; do
+					VULKAN_DRIVERS+=",${i}"
+				done
+			fi
+			;;
+	esac
+}

diff --git a/media-libs/mesa/mesa-17.2.0_rc3.ebuild b/media-libs/mesa/mesa-17.2.0_rc3.ebuild
new file mode 100644
index 0000000..d71ed5f
--- /dev/null
+++ b/media-libs/mesa/mesa-17.2.0_rc3.ebuild
@@ -0,0 +1,508 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+EGIT_REPO_URI="https://anongit.freedesktop.org/git/mesa/mesa.git"
+
+if [[ ${PV} = 9999 ]]; then
+	GIT_ECLASS="git-r3"
+	EXPERIMENTAL="true"
+fi
+
+PYTHON_COMPAT=( python2_7 )
+
+inherit autotools llvm multilib-minimal python-any-r1 pax-utils ${GIT_ECLASS}
+
+OPENGL_DIR="xorg-x11"
+
+MY_P="${P/_/-}"
+
+DESCRIPTION="OpenGL-like graphic library for Linux"
+HOMEPAGE="https://www.mesa3d.org/"
+
+if [[ $PV == 9999 ]]; then
+	SRC_URI=""
+else
+	SRC_URI="https://mesa.freedesktop.org/archive/${MY_P}.tar.xz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~arm-linux ~x86-linux ~sparc-solaris ~x64-solaris ~x86-solaris"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+RESTRICT="!bindist? ( bindist )"
+
+RADEON_CARDS="r100 r200 r300 r600 radeon radeonsi"
+VIDEO_CARDS="${RADEON_CARDS} freedreno i915 i965 imx intel nouveau vc4 vivante vmware"
+for card in ${VIDEO_CARDS}; do
+	IUSE_VIDEO_CARDS+=" video_cards_${card}"
+done
+
+IUSE="${IUSE_VIDEO_CARDS}
+	bindist +classic d3d9 debug +dri3 +egl +gallium +gbm gles1 gles2 unwind
+	+llvm +nptl opencl osmesa pax_kernel openmax pic selinux vaapi valgrind
+	vdpau vulkan wayland xvmc xa"
+
+REQUIRED_USE="
+	d3d9?   ( dri3 gallium )
+	llvm?   ( gallium )
+	opencl? ( gallium llvm )
+	openmax? ( gallium )
+	gles1?  ( egl )
+	gles2?  ( egl )
+	vaapi? ( gallium )
+	vdpau? ( gallium )
+	vulkan? ( || ( video_cards_i965 video_cards_radeonsi )
+	          video_cards_radeonsi? ( llvm ) )
+	wayland? ( egl gbm )
+	xa?  ( gallium )
+	video_cards_freedreno?  ( gallium )
+	video_cards_intel?  ( classic )
+	video_cards_i915?   ( || ( classic gallium ) )
+	video_cards_i965?   ( classic )
+	video_cards_imx?    ( gallium )
+	video_cards_nouveau? ( || ( classic gallium ) )
+	video_cards_radeon? ( || ( classic gallium )
+						  gallium? ( x86? ( llvm ) amd64? ( llvm ) ) )
+	video_cards_r100?   ( classic )
+	video_cards_r200?   ( classic )
+	video_cards_r300?   ( gallium x86? ( llvm ) amd64? ( llvm ) )
+	video_cards_r600?   ( gallium )
+	video_cards_radeonsi?   ( gallium llvm )
+	video_cards_vc4? ( gallium )
+	video_cards_vivante? ( gallium gbm )
+	video_cards_vmware? ( gallium )
+"
+
+LIBDRM_DEPSTRING=">=x11-libs/libdrm-2.4.82"
+# keep correct libdrm and dri2proto dep
+# keep blocks in rdepend for binpkg
+RDEPEND="
+	!<x11-base/xorg-server-1.7
+	!<=x11-proto/xf86driproto-2.0.3
+	abi_x86_32? ( !app-emulation/emul-linux-x86-opengl[-abi_x86_32(-)] )
+	classic? ( app-eselect/eselect-mesa )
+	gallium? ( app-eselect/eselect-mesa )
+	>=app-eselect/eselect-opengl-1.3.0
+	>=dev-libs/expat-2.1.0-r3:=[${MULTILIB_USEDEP}]
+	>=sys-libs/zlib-1.2.8[${MULTILIB_USEDEP}]
+	>=x11-libs/libX11-1.6.2:=[${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-1.9.3:=[${MULTILIB_USEDEP}]
+	x11-libs/libXfixes:=[${MULTILIB_USEDEP}]
+	unwind? ( sys-libs/libunwind[${MULTILIB_USEDEP}] )
+	llvm? (
+		video_cards_radeonsi? (
+			virtual/libelf:0=[${MULTILIB_USEDEP}]
+			vulkan? ( >=sys-devel/llvm-3.9.0:=[${MULTILIB_USEDEP}] )
+		)
+		video_cards_r600? (
+			virtual/libelf:0=[${MULTILIB_USEDEP}]
+		)
+		video_cards_radeon? (
+			virtual/libelf:0=[${MULTILIB_USEDEP}]
+		)
+		>=sys-devel/llvm-3.6.0:=[${MULTILIB_USEDEP}]
+	)
+	opencl? (
+				app-eselect/eselect-opencl
+				dev-libs/libclc
+				virtual/libelf:0=[${MULTILIB_USEDEP}]
+			)
+	openmax? ( >=media-libs/libomxil-bellagio-0.9.3:=[${MULTILIB_USEDEP}] )
+	vaapi? (
+		>=x11-libs/libva-1.6.0:=[${MULTILIB_USEDEP}]
+		video_cards_nouveau? ( !<=x11-libs/libva-vdpau-driver-0.7.4-r3 )
+	)
+	vdpau? ( >=x11-libs/libvdpau-1.1:=[${MULTILIB_USEDEP}] )
+	wayland? (
+		>=dev-libs/wayland-1.11.0:=[${MULTILIB_USEDEP}]
+		>=dev-libs/wayland-protocols-1.8
+	)
+	xvmc? ( >=x11-libs/libXvMC-1.0.8:=[${MULTILIB_USEDEP}] )
+	${LIBDRM_DEPSTRING}[video_cards_freedreno?,video_cards_nouveau?,video_cards_vc4?,video_cards_vivante?,video_cards_vmware?,${MULTILIB_USEDEP}]
+
+	video_cards_intel? (
+		!video_cards_i965? ( ${LIBDRM_DEPSTRING}[video_cards_intel] )
+	)
+	video_cards_i915? ( ${LIBDRM_DEPSTRING}[video_cards_intel] )
+"
+for card in ${RADEON_CARDS}; do
+	RDEPEND="${RDEPEND}
+		video_cards_${card}? ( ${LIBDRM_DEPSTRING}[video_cards_radeon] )
+	"
+done
+RDEPEND="${RDEPEND}
+	video_cards_radeonsi? ( ${LIBDRM_DEPSTRING}[video_cards_amdgpu] )
+"
+
+# FIXME: kill the sys-devel/llvm[video_cards_radeon] compat once
+# LLVM < 3.9 is out of the game
+DEPEND="${RDEPEND}
+	${PYTHON_DEPS}
+	llvm? (
+		video_cards_radeonsi? ( || (
+			sys-devel/llvm[llvm_targets_AMDGPU]
+			sys-devel/llvm[video_cards_radeon]
+		) )
+	)
+	opencl? (
+				>=sys-devel/llvm-3.6.0:=[${MULTILIB_USEDEP}]
+				>=sys-devel/clang-3.6.0:=[${MULTILIB_USEDEP}]
+				>=sys-devel/gcc-4.6
+	)
+	sys-devel/gettext
+	virtual/pkgconfig
+	valgrind? ( dev-util/valgrind )
+	>=x11-proto/dri2proto-2.8-r1:=[${MULTILIB_USEDEP}]
+	dri3? (
+		>=x11-proto/dri3proto-1.0:=[${MULTILIB_USEDEP}]
+		>=x11-proto/presentproto-1.0:=[${MULTILIB_USEDEP}]
+	)
+	>=x11-proto/glproto-1.4.17-r1:=[${MULTILIB_USEDEP}]
+	>=x11-proto/xextproto-7.2.1-r1:=[${MULTILIB_USEDEP}]
+	>=x11-proto/xf86driproto-2.1.1-r1:=[${MULTILIB_USEDEP}]
+	>=x11-proto/xf86vidmodeproto-2.3.1-r1:=[${MULTILIB_USEDEP}]
+"
+[[ ${PV} == 9999 ]] && DEPEND+="
+	sys-devel/bison
+	sys-devel/flex
+	$(python_gen_any_dep ">=dev-python/mako-0.7.3[\${PYTHON_USEDEP}]")
+"
+
+S="${WORKDIR}/${MY_P}"
+EGIT_CHECKOUT_DIR=${S}
+
+QA_WX_LOAD="
+x86? (
+	!pic? (
+		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
+	)
+)"
+
+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 || use opencl; then
+		llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	eapply "${FILESDIR}"/${PN}-11-execinfo.patch
+	eapply "${FILESDIR}"/${PN}-13-musl_endian.patch
+
+	eautoreconf
+
+	eapply_user
+}
+
+multilib_src_configure() {
+	local myconf
+
+	if use classic; then
+		# Configurable DRI drivers
+		driver_enable swrast
+
+		# Intel code
+		driver_enable video_cards_i915 i915
+		driver_enable video_cards_i965 i965
+		if ! use video_cards_i915 && \
+			! use video_cards_i965; then
+			driver_enable video_cards_intel i915 i965
+		fi
+
+		# Nouveau code
+		driver_enable video_cards_nouveau nouveau
+
+		# ATI code
+		driver_enable video_cards_r100 radeon
+		driver_enable video_cards_r200 r200
+		if ! use video_cards_r100 && \
+				! use video_cards_r200; then
+			driver_enable video_cards_radeon radeon r200
+		fi
+	fi
+
+	if use egl; then
+		myconf+=" --with-platforms=x11,surfaceless$(use wayland && echo ",wayland")$(use gbm && echo ",drm")"
+	fi
+
+	if use gallium; then
+		myconf+="
+			$(use_enable d3d9 nine)
+			$(use_enable llvm)
+			$(use_enable openmax omx)
+			$(use_enable vaapi va)
+			$(use_enable vdpau)
+			$(use_enable xa)
+			$(use_enable xvmc)
+		"
+		use vaapi && myconf+=" --with-va-libdir=/usr/$(get_libdir)/va/drivers"
+
+		gallium_enable swrast
+		gallium_enable video_cards_vc4 vc4
+		gallium_enable video_cards_vivante etnaviv
+		gallium_enable video_cards_vmware svga
+		gallium_enable video_cards_nouveau nouveau
+		gallium_enable video_cards_i915 i915
+		gallium_enable video_cards_imx imx
+		if ! use video_cards_i915 && \
+			! use video_cards_i965; then
+			gallium_enable video_cards_intel i915
+		fi
+
+		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
+		# opencl stuff
+		if use opencl; then
+			myconf+="
+				$(use_enable opencl)
+				--with-clang-libdir="${EPREFIX}/usr/lib"
+				"
+		fi
+	fi
+
+	if use vulkan; then
+		vulkan_enable video_cards_i965 intel
+		vulkan_enable video_cards_radeonsi radeon
+	fi
+
+	# x86 hardened pax_kernel needs glx-rts, bug 240956
+	if [[ ${ABI} == x86 ]]; then
+		myconf+=" $(use_enable pax_kernel glx-read-only-text)"
+	fi
+
+	# on abi_x86_32 hardened we need to have asm disable
+	if [[ ${ABI} == x86* ]] && use pic; then
+		myconf+=" --disable-asm"
+	fi
+
+	if use gallium; then
+		myconf+=" $(use_enable osmesa gallium-osmesa)"
+	else
+		myconf+=" $(use_enable osmesa)"
+	fi
+
+	# build fails with BSD indent, bug #428112
+	use userland_GNU || export INDENT=cat
+
+	ECONF_SOURCE="${S}" \
+	econf \
+		--enable-dri \
+		--enable-glx \
+		--enable-shared-glapi \
+		$(use_enable !bindist texture-float) \
+		$(use_enable d3d9 nine) \
+		$(use_enable debug) \
+		$(use_enable dri3) \
+		$(use_enable egl) \
+		$(use_enable gbm) \
+		$(use_enable gles1) \
+		$(use_enable gles2) \
+		$(use_enable nptl glx-tls) \
+		$(use_enable unwind libunwind) \
+		--enable-valgrind=$(usex valgrind auto no) \
+		--enable-llvm-shared-libs \
+		--with-dri-drivers=${DRI_DRIVERS} \
+		--with-gallium-drivers=${GALLIUM_DRIVERS} \
+		--with-vulkan-drivers=${VULKAN_DRIVERS} \
+		PYTHON2="${PYTHON}" \
+		${myconf}
+}
+
+multilib_src_install() {
+	emake install DESTDIR="${D}"
+
+	if use classic || use gallium; then
+			ebegin "Moving DRI/Gallium drivers for dynamic switching"
+			local gallium_drivers=( i915_dri.so i965_dri.so r300_dri.so r600_dri.so swrast_dri.so )
+			keepdir /usr/$(get_libdir)/dri
+			dodir /usr/$(get_libdir)/mesa
+			for x in ${gallium_drivers[@]}; do
+				if [ -f "$(get_libdir)/gallium/${x}" ]; then
+					mv -f "${ED}/usr/$(get_libdir)/dri/${x}" "${ED}/usr/$(get_libdir)/dri/${x/_dri.so/g_dri.so}" \
+						|| die "Failed to move ${x}"
+				fi
+			done
+			if use classic; then
+				emake -C "${BUILD_DIR}/src/mesa/drivers/dri" DESTDIR="${D}" install
+			fi
+			for x in "${ED}"/usr/$(get_libdir)/dri/*.so; do
+				if [ -f ${x} -o -L ${x} ]; then
+					mv -f "${x}" "${x/dri/mesa}" \
+						|| die "Failed to move ${x}"
+				fi
+			done
+			pushd "${ED}"/usr/$(get_libdir)/dri || die "pushd failed"
+			ln -s ../mesa/*.so . || die "Creating symlink failed"
+			# remove symlinks to drivers known to eselect
+			for x in ${gallium_drivers[@]}; do
+				if [ -f ${x} -o -L ${x} ]; then
+					rm "${x}" || die "Failed to remove ${x}"
+				fi
+			done
+			popd
+		eend $?
+	fi
+	if use opencl; then
+		ebegin "Moving Gallium/Clover OpenCL implementation for dynamic switching"
+		local cl_dir="/usr/$(get_libdir)/OpenCL/vendors/mesa"
+		dodir ${cl_dir}/{lib,include}
+		if [ -f "${ED}/usr/$(get_libdir)/libOpenCL.so" ]; then
+			mv -f "${ED}"/usr/$(get_libdir)/libOpenCL.so* \
+			"${ED}"${cl_dir}
+		fi
+		if [ -f "${ED}/usr/include/CL/opencl.h" ]; then
+			mv -f "${ED}"/usr/include/CL \
+			"${ED}"${cl_dir}/include
+		fi
+		eend $?
+	fi
+
+	if use openmax; then
+		echo "XDG_DATA_DIRS=\"${EPREFIX}/usr/share/mesa/xdg\"" > "${T}/99mesaxdgomx"
+		doenvd "${T}"/99mesaxdgomx
+		keepdir /usr/share/mesa/xdg
+	fi
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name '*.la' -delete
+	einstalldocs
+
+	if use !bindist; then
+		dodoc docs/patents.txt
+	fi
+
+	# Install config file for eselect mesa
+	insinto /usr/share/mesa
+	newins "${FILESDIR}/eselect-mesa.conf.9.2" eselect-mesa.conf
+}
+
+multilib_src_test() {
+	if use llvm; then
+		local llvm_tests='lp_test_arit lp_test_arit lp_test_blend lp_test_blend lp_test_conv lp_test_conv lp_test_format lp_test_format lp_test_printf lp_test_printf'
+		pushd src/gallium/drivers/llvmpipe >/dev/null || die
+		emake ${llvm_tests}
+		pax-mark m ${llvm_tests}
+		popd >/dev/null || die
+	fi
+	emake check
+}
+
+pkg_postinst() {
+	# Switch to the xorg implementation.
+	echo
+	eselect opengl set --use-old ${OPENGL_DIR}
+
+	# Select classic/gallium drivers
+	if use classic || use gallium; then
+		eselect mesa set --auto
+	fi
+
+	# Switch to mesa opencl
+	if use opencl; then
+		eselect opencl set --use-old ${PN}
+	fi
+
+	# run omxregister-bellagio to make the OpenMAX drivers known system-wide
+	if use openmax; then
+		ebegin "Registering OpenMAX drivers"
+		BELLAGIO_SEARCH_PATH="${EPREFIX}/usr/$(get_libdir)/libomxil-bellagio0" \
+			OMX_BELLAGIO_REGISTRY=${EPREFIX}/usr/share/mesa/xdg/.omxregister \
+			omxregister-bellagio
+		eend $?
+	fi
+
+	# warn about patent encumbered texture-float
+	if use !bindist; then
+		elog "USE=\"bindist\" was not set. Potentially patent encumbered code was"
+		elog "enabled. Please see patents.txt for an explanation."
+	fi
+
+	if ! has_version media-libs/libtxc_dxtn; then
+		elog "Note that in order to have full S3TC support, it is necessary to install"
+		elog "media-libs/libtxc_dxtn as well. This may be necessary to get nice"
+		elog "textures in some apps, and some others even require this to run."
+	fi
+}
+
+pkg_prerm() {
+	if use openmax; then
+		rm "${EPREFIX}"/usr/share/mesa/xdg/.omxregister
+	fi
+}
+
+# $1 - VIDEO_CARDS flag
+# other args - names of DRI drivers to enable
+# TODO: avoid code duplication for a more elegant implementation
+driver_enable() {
+	case $# in
+		# for enabling unconditionally
+		1)
+			DRI_DRIVERS+=",$1"
+			;;
+		*)
+			if use $1; then
+				shift
+				for i in $@; do
+					DRI_DRIVERS+=",${i}"
+				done
+			fi
+			;;
+	esac
+}
+
+gallium_enable() {
+	case $# in
+		# for enabling unconditionally
+		1)
+			GALLIUM_DRIVERS+=",$1"
+			;;
+		*)
+			if use $1; then
+				shift
+				for i in $@; do
+					GALLIUM_DRIVERS+=",${i}"
+				done
+			fi
+			;;
+	esac
+}
+
+vulkan_enable() {
+	case $# in
+		# for enabling unconditionally
+		1)
+			VULKAN_DRIVERS+=",$1"
+			;;
+		*)
+			if use $1; then
+				shift
+				for i in $@; do
+					VULKAN_DRIVERS+=",${i}"
+				done
+			fi
+			;;
+	esac
+}