media-libs/mesa: Version bump

Package-Manager: portage-2.2.20.1

2 files changed, 464 insertions, 3 deletions

diff --git a/media-libs/mesa/Manifest b/media-libs/mesa/Manifest
index c8dc8b5be25a..e268a176ea08 100644
--- a/media-libs/mesa/Manifest
+++ b/media-libs/mesa/Manifest
@@ -3,9 +3,7 @@ DIST MesaLib-10.3.7.tar.bz2 7287153 SHA256 43c6ced15e237cbb21b3082d7c0b42777c50c
 DIST MesaLib-10.4.6.tar.bz2 7520024 SHA256 d8baedd20e79ccd98a5a7b05e23d59a30892e68de1fcc057ca6873dafca02735 SHA512 1a379de8471f9154aa1348c15d24a56788e42b666094d63aa5dc8bffd1ed87c1ab50fb95adac010a92d832be4ec1be60b712179ad1ec99869ee653ccb576f50e WHIRLPOOL 45ff4f46a9c165c2cd3f49696f9d972216fdbc27051287d4eea4210f25631fb1faca517a714cc50229c463be1628dfbf71ba689d02ed3b3d52bfc71683fe667e
 DIST MesaLib-7.10.3.tar.bz2 6056837 SHA256 1e701fc839b872677ddca9ed8784d754c9da1fbeda98173980e06aa7df0e85c0 SHA512 aa1f5f068b305fae5519e11cad2db9c6dc647d3122252bbcb210f13ac6ef1b667ae750344898bca7c5bfae94934db05eff915cb7417a59590e6d3ba230817aa8 WHIRLPOOL 5c2adda647936ed4163a4e4d5afad8344eb576712f9432f697aa0fc22ca17d7aaf0aeb6ad2d4e7e0825dc27cae570660332450778f8091e9b27aad2865c9b5fc
 DIST mesa-10.5.8.tar.xz 6993084 SHA256 2866b855c5299a4aed066338c77ff6467c389b2c30ada7647be8758663da2b54 SHA512 d7fc441b4cdad8a2905f03091af26ca7b01573bf4d0d928e950270981e4c6e7d20dba6aa97a60500b9a335a3c5cabc7f388a5338d43d391eed3f09dea60b77b2 WHIRLPOOL 68cc3d8490da9759b9d790053c70429be4c529c63b114f65f411112f76cd4daccc3490120a85a84d01cdcb989c0a0e58016b4d80f2238f2320b1caff797f3390
-DIST mesa-10.6.1.tar.xz 7035216 SHA256 6c80a2b647e57c85dc36e609d9aed17f878f0d8e0cf9ace86d14cf604101e1eb SHA512 7ba5f4a7e421e6f198c4e80c1f0259071e1115aecdbe2846a7986bcfe1503a6f4a1806126295e3d9f4b6aee63dd107e82c3972ccb8079b9b5baf1f65246d21ab WHIRLPOOL 1e72a397e30e0f02afc18d864aea004f13cc95a925b66538ac1e368dea9f4737168dcf6b6af715ae04331b0626b3bda7aa2affae95575c56edbeaf0177bc3117
-DIST mesa-10.6.2.tar.xz 7033344 SHA256 05753d3db4212900927b9894221a1669a10f56786e86a7e818b6e18a0817dca9 SHA512 feaca60b7cc8310a613bd89d0008fb7807de403ce6782e0e62e47ecba040d3728602778f47c704751cb49f8e2d950de03153b84b66d28203e29a70987b96340b WHIRLPOOL 8b148e7bb36fdcc7c25bb02561489b796f01f82bc74ce1d927987eeeaed5f602647d435c046142f5384aa4fb0369bb4a288281b51a03be712b4af8ed7111bf23
-DIST mesa-10.6.3.tar.xz 7036480 SHA256 58592e07c350cd2e8969b73fa83048c657a39fe2f13f3b88f5e5818fe2e4676d SHA512 4474e089c0b618d0b0469e31c213d84530f9dd22d4280612f34370578a7e7dfdfd1ac499feae470f032e462f5d7532aafa4416a7dd97d0cd6d9332aec5b44446 WHIRLPOOL 13f44d38e34b6b03919393918a65d2f47ef20de2b31a27ffb3b74c969414d40b01840652829a749924aa3ae548f2cf0abce8c830bcad6a4365ceedd4908e06cb
 DIST mesa-10.6.5.tar.xz 7037400 SHA256 fb6fac3c85bcfa9d06b8dd439169f23f0c0924a88e44362e738b99b1feff762f SHA512 46be6bd683d286bdf9ab8b4c1b1b32f89c95701b8c48cee49b060f5beaacea4540a69b99b4fde0f80acdd8e725552bef17dbd4251b9e977caeb5fd9d0ba56595 WHIRLPOOL dee48a0c680aae01cc39dc9157ea7c4c353b7ffdf543ab1cde8e76612a462ff3e3cb33433abff6d88f6800b71a02cd8cfcc23be98218d3cc4f85f424f3d12474
 DIST mesa-11.0.0-rc1.tar.xz 7250800 SHA256 4a61c15c5ba9bb2ed6c6d5d622363ac4149bd903966fa3c346ba6f06b05e0767 SHA512 203af66bf71a7a59d8bbcec9e6a8b3d75666361ffd8e74bc236e8378d628c1dcfeccde3830d56b344274e30ca920243a5fe6cc55d398856632644cac9add0af3 WHIRLPOOL c244003c071601dd997e18993b5ba27c6896c8332b18b0711c343de34e080643d53bfec54a09e62dbd409f0faadf70ba4ce3026e36017736f9a119d768b40baf
+DIST mesa-11.0.0-rc2.tar.xz 7251904 SHA256 e45008b21cc9919c5d4f7c83d69dd15a2f247f8a299be45a0370ed0d26304341 SHA512 781ff9db9be53713793c8e74cc8aed6bfa85db20d3f3684ed0c418c5f31e12379f0818d7b47ad6bdf46267de7ea0202b6df6030a22822cdd0563ae3b18475c4c WHIRLPOOL ea9611eee073dd6e4eab497a37d7ab3ff0f9137f2200f6c7b7bc654baf599af3c3d7af708e5227edb1f47f10dc063024c4db1d27b78e28ed75fd73f61a8ac876
 DIST mesa-7.10.1-gentoo-patches-01.tar.bz2 5488 SHA256 31cd4f6d1a0a70249c40452919074856d120cd473a01a8457e3dc147a1b622d8 SHA512 c62b45b32e396e67f629003fc5242b7b4df054b8e20b5237489212bc4f0171534915a02fc9efa68965068121d10660b5cd92a419efabe33fd4596a97a39249c2 WHIRLPOOL 5f171959e3a31f5c38438b4806ce371bb8fdf1c7a87501865e4ed5d5ab284cda9568b7773005997d7a1cff151f95e64c027b36c0be48a4dd288a7ab8b5f69b97
diff --git a/media-libs/mesa/mesa-11.0.0_rc2.ebuild b/media-libs/mesa/mesa-11.0.0_rc2.ebuild
new file mode 100644
index 000000000000..73f53c533611
--- /dev/null
+++ b/media-libs/mesa/mesa-11.0.0_rc2.ebuild
@@ -0,0 +1,463 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+EGIT_REPO_URI="git://anongit.freedesktop.org/mesa/mesa"
+
+if [[ ${PV} = 9999* ]]; then
+	GIT_ECLASS="git-r3"
+	EXPERIMENTAL="true"
+fi
+
+PYTHON_COMPAT=( python2_7 )
+
+inherit autotools multilib-minimal python-any-r1 pax-utils ${GIT_ECLASS}
+
+OPENGL_DIR="xorg-x11"
+
+MY_P="${P/_/-}"
+FOLDER="${PV/_rc*/}"
+
+DESCRIPTION="OpenGL-like graphic library for Linux"
+HOMEPAGE="http://mesa3d.sourceforge.net/"
+
+if [[ $PV == 9999* ]]; then
+	SRC_URI=""
+else
+	SRC_URI="ftp://ftp.freedesktop.org/pub/mesa/${FOLDER}/${MY_P}.tar.xz"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~x86-freebsd ~amd64-linux ~arm-linux ~ia64-linux ~x86-linux ~sparc-solaris ~x64-solaris ~x86-solaris"
+RESTRICT="!bindist? ( bindist )"
+
+INTEL_CARDS="i915 i965 ilo intel"
+RADEON_CARDS="r100 r200 r300 r600 radeon radeonsi"
+VIDEO_CARDS="${INTEL_CARDS} ${RADEON_CARDS} freedreno nouveau 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 +llvm
+	+nptl opencl osmesa pax_kernel openmax pic selinux +udev vaapi vdpau
+	wayland xvmc xa kernel_FreeBSD"
+
+REQUIRED_USE="
+	d3d9?   ( dri3 gallium )
+	llvm?   ( gallium )
+	opencl? ( gallium llvm )
+	openmax? ( gallium )
+	gles1?  ( egl )
+	gles2?  ( egl )
+	vaapi? ( gallium )
+	vdpau? ( gallium )
+	wayland? ( egl gbm )
+	xa?  ( gallium )
+	video_cards_freedreno?  ( gallium )
+	video_cards_intel?  ( classic )
+	video_cards_i915?   ( || ( classic gallium ) )
+	video_cards_i965?   ( classic )
+	video_cards_ilo?    ( gallium )
+	video_cards_nouveau? ( || ( classic gallium ) )
+	video_cards_radeon? ( || ( classic gallium ) )
+	video_cards_r100?   ( classic )
+	video_cards_r200?   ( classic )
+	video_cards_r300?   ( gallium llvm )
+	video_cards_r600?   ( gallium )
+	video_cards_radeonsi?   ( gallium llvm )
+	video_cards_vmware? ( gallium )
+	${PYTHON_REQUIRED_USE}
+"
+
+LIBDRM_DEPSTRING=">=x11-libs/libdrm-2.4.64"
+# keep correct libdrm and dri2proto dep
+# keep blocks in rdepend for binpkg
+RDEPEND="
+	!<x11-base/xorg-server-1.7
+	!<=x11-proto/xf86driproto-2.0.3
+	abi_x86_32? ( !app-emulation/emul-linux-x86-opengl[-abi_x86_32(-)] )
+	classic? ( app-eselect/eselect-mesa )
+	gallium? ( app-eselect/eselect-mesa )
+	>=app-eselect/eselect-opengl-1.3.0
+	udev? ( kernel_linux? ( >=virtual/libudev-215:=[${MULTILIB_USEDEP}] ) )
+	>=dev-libs/expat-2.1.0-r3:=[${MULTILIB_USEDEP}]
+	gbm? ( >=virtual/libudev-215:=[${MULTILIB_USEDEP}] )
+	dri3? ( >=virtual/libudev-215:=[${MULTILIB_USEDEP}] )
+	>=x11-libs/libX11-1.6.2:=[${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}]
+	llvm? (
+		video_cards_radeonsi? ( || (
+			>=dev-libs/elfutils-0.155-r1:=[${MULTILIB_USEDEP}]
+			>=dev-libs/libelf-0.8.13-r2:=[${MULTILIB_USEDEP}]
+			) )
+		!video_cards_r600? (
+			video_cards_radeon? ( || (
+				>=dev-libs/elfutils-0.155-r1:=[${MULTILIB_USEDEP}]
+				>=dev-libs/libelf-0.8.13-r2:=[${MULTILIB_USEDEP}]
+				) )
+		)
+		>=sys-devel/llvm-3.4.2:=[${MULTILIB_USEDEP}]
+	)
+	opencl? (
+				app-eselect/eselect-opencl
+				dev-libs/libclc
+				|| (
+					>=dev-libs/elfutils-0.155-r1:=[${MULTILIB_USEDEP}]
+					>=dev-libs/libelf-0.8.13-r2:=[${MULTILIB_USEDEP}]
+				)
+			)
+	openmax? ( >=media-libs/libomxil-bellagio-0.9.3:=[${MULTILIB_USEDEP}] )
+	vaapi? ( >=x11-libs/libva-0.35.0:=[${MULTILIB_USEDEP}] )
+	vdpau? ( >=x11-libs/libvdpau-1.1:=[${MULTILIB_USEDEP}] )
+	wayland? ( >=dev-libs/wayland-1.2.0:=[${MULTILIB_USEDEP}] )
+	xvmc? ( >=x11-libs/libXvMC-1.0.8:=[${MULTILIB_USEDEP}] )
+	${LIBDRM_DEPSTRING}[video_cards_freedreno?,video_cards_nouveau?,video_cards_vmware?,${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}? ( ${LIBDRM_DEPSTRING}[video_cards_radeon] )
+	"
+done
+
+DEPEND="${RDEPEND}
+	llvm? (
+		video_cards_radeonsi? ( sys-devel/llvm[video_cards_radeon] )
+	)
+	opencl? (
+				>=sys-devel/llvm-3.4.2:=[${MULTILIB_USEDEP}]
+				>=sys-devel/clang-3.4.2:=[${MULTILIB_USEDEP}]
+				>=sys-devel/gcc-4.6
+	)
+	sys-devel/gettext
+	virtual/pkgconfig
+	>=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_DEPS}
+	$(python_gen_any_dep ">=dev-python/mako-0.7.3[\${PYTHON_USEDEP}]")
+"
+
+S="${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
+
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	# fix for hardened pax_kernel, bug 240956
+	[[ ${PV} != 9999* ]] && epatch "${FILESDIR}"/glx_ro_text_segm.patch
+
+	eautoreconf
+}
+
+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$(use wayland && echo ",wayland")$(use gbm && echo ",drm") "
+	fi
+
+	if use gallium; then
+		myconf+="
+			$(use_enable d3d9 nine)
+			$(use_enable llvm gallium-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_vmware svga
+		gallium_enable video_cards_nouveau nouveau
+		gallium_enable video_cards_i915 i915
+		gallium_enable video_cards_ilo ilo
+		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
+
+	# x86 hardened pax_kernel needs glx-rts, bug 240956
+	if use pax_kernel; then
+		myconf+="
+			$(use_enable x86 glx-rts)
+		"
+	fi
+
+	# on abi_x86_32 hardened we need to have asm disable
+	if [[ ${ABI} == x86* ]] && use pic; then
+		myconf+=" --disable-asm"
+	fi
+
+	# build fails with BSD indent, bug #428112
+	use userland_GNU || export INDENT=cat
+
+	ECONF_SOURCE="${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 osmesa) \
+		$(use_enable !udev sysfs) \
+		--enable-llvm-shared-libs \
+		--with-dri-drivers=${DRI_DRIVERS} \
+		--with-gallium-drivers=${GALLIUM_DRIVERS} \
+		PYTHON2="${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() {
+	prune_libtool_files --all
+	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
+}