extras/mesa/mesa-10.2.1-r2.smage2

# $Id$

PNAME="mesa"
PVER="10.2.1"
PBUILD="r2"

SPLIT_PACKAGES="mesa"

PCAT="media-libs"
HOMEPAGE="http://mesa3d.sourceforge.net/"

# hardcoded llvm version for libxatracker
LLVM_PVER="3.4.2"

MESA_DEPEND=">= dev-libs/expat-2.1
	>= dev-libs/libffi-3.0.13
	>= x11-libs/libX11-1.6
	>= x11-libs/libXext-1.3
	>= x11-libs/libXxf86vm-1.1
	>= x11-libs/libXi-1.7
	>= x11-libs/libXmu-1.1
	>= x11-libs/libdrm-2.4.54
	>= x11-libs/libICE-1
	>= x11-base/opengl-update-2.3
	>= x11-libs/libxcb-1.10
	>= x11-libs/libXfixes-5
	>= x11-libs/libXdamage-1
	>= x11-libs/libvdpau-0.7
	>= x11-libs/libXvMC-1
	>= sys-libs/libstdc++-4.8
	>= sys-fs/udev-211
	>= sys-libs/llvm-libs-${LLVM_PVER}"
#	>= x11-libs/libva-1.3

MESA_PROGS_DEPEND=">= virtual/glut"

SDEPEND="${MESA_DEPEND}
	${MESA_PROGS_DEPEND}
	>= dev-util/pkgconfig-0.25
	>= x11-misc/makedepend-1
	>= x11-proto/xf86vidmodeproto-2.3
	>= x11-libs/libXxf86vm-1.1
	>= x11-proto/glproto-1.4.16
	>= x11-proto/inputproto-2.3
	>= x11-proto/xextproto-7.2
	>= x11-proto/xf86driproto-2.1
	>= x11-proto/dri2proto-2.8
	>= x11-proto/xcb-proto-1.8
	>= x11-proto/xproto-7.0.23
	>= x11-proto/fixesproto-5
	>= x11-proto/damageproto-1.2
	>= dev-lang/python-2.7
	>= sys-dev/llvm-${LLVM_PVER}"

# must be set before the include of multilib!
EMUL_LINUX_32=true
sminclude xorg mtools multilib cleanutils
msetfeature "!check"

# must be set *after* the include of xorg!
SRCFILE="MesaLib-${PVER/_/-}.tar.bz2"
# libs SRCDIR
SRCDIR="${BUILDDIR}/Mesa-${PVER/_/-}"

# 	known drivers:
# dri:		dri-swrast,dri-i915,dri-i965,dri-r200,dri-radeon,dri-i810,dri-mach64,dri-mga,
#				dri-r128,dri-r300,dri-r600,dri-savage,dri-sis,dri-tdfx,dri-unichrome
# gallium:	gallium-i915,gallium-i965,gallium-r300,gallium-r600,gallium-vmwgfx,gallium-swrast,gallium-nouveau, gallium-radeonsi
#MESA_DRIVERS="dri-swrast,dri-i915,dri-i965,dri-r200,dri-radeon"
#MESA_DRIVERS+=","
MESA_DRIVERS+="gallium-i915,gallium-nouveau,gallium-r300,gallium-r600,gallium-radeonsi,gallium-vmwgfx,gallium-swrast"

# helper functions
driver_enabled()
{
	local driver="$1"

	if [[ ${MESA_DRIVERS//${driver}} != ${MESA_DRIVERS} ]]
	then
		return 0
	else
		return 1
	fi
}

add_dri_driver()
{
	local driver="$1"

	if [[ -z ${MESA_DRI_DRIVERS} ]]
	then
		MESA_DRI_DRIVERS="${driver}"
	elif [[ ${MESA_DRI_DRIVERS//${driver}} = ${MESA_DRI_DRIVERS} ]]
	then
		MESA_DRI_DRIVERS+=",${driver}"
	fi
}

add_gallium_driver()
{
	local driver="$1"

	if [[ -z ${MESA_GALLIUM_DRIVERS} ]]
	then
		MESA_GALLIUM_DRIVERS="${driver}"
	elif [[ ${MESA_GALLIUM_DRIVERS//${driver}} = ${MESA_GALLIUM_DRIVERS} ]]
	then
		MESA_GALLIUM_DRIVERS+=",${driver}"
	fi
}

install_dri_driver()
{
	local driver="$1"
	mmake -C src/mesa/drivers/dri/${driver} DESTDIR=${BINDIR} install || die
}

install_gallium_driver()
{
	local driver="$1"
	local dir

	# use the right target dirs
	case ${driver} in
		radeonsi|r300|r600) dir="${driver}/dri" ;;
		*) dir="dri-${driver}" ;;
	esac

	if [[ ${driver} = radeonsi ]]
	then
		# prereq - libllvmradeon${PVER}.so is needed to link the radeonsi driver
		mmake -C src/gallium/drivers/radeon DESTDIR=${BINDIR} install || die
	fi

	mmake -C src/gallium/targets/${dir} DESTDIR=${BINDIR} install || die

	if [[ ${driver} = radeonsi ]]
	then
		# remove prereq libs
		mmake -C src/gallium/drivers/radeon DESTDIR=${BINDIR} uninstall || die
	fi
}

install_gallium_pipe_driver()
{
	local driver="$1"

	# prereq - libllvmradeon${PVER}.so is needed to link the pipes
	mmake -C src/gallium/drivers/radeon DESTDIR=${BINDIR} install || die

	mmake -C src/gallium/targets/pipe-loader DESTDIR=${BINDIR} install || die
	zapmost ${BINDIR}/usr/$(mlibdir)/gallium-pipe pipe_${driver}.so || die
	if [[ $(mlibdir) != lib ]]
	then
		zapmost ${BINDIR}/usr/lib/gallium-pipe pipe_${driver}.so || die
	fi

	# remove prereq libs
	mmake -C src/gallium/drivers/radeon DESTDIR=${BINDIR} uninstall || die
}

install_gallium_vdpau_driver()
{
	local driver="$1"
	local dir

	# use the right target dirs
	case ${driver} in
		nouveau) dir="vdpau-${driver}" ;;
		radeonsi|r600) dir="${driver}/vdpau" ;;
		*) dir="dri-${driver}" ;;
	esac

	if [[ ${driver} = radeonsi ]]
	then
		# prereq - libllvmradeon${PVER}.so is needed to link the radeonsi vdpau driver
		mmake -C src/gallium/drivers/radeon DESTDIR=${BINDIR} install || die
	fi

	mmake -C src/gallium/targets/${dir} DESTDIR=${BINDIR} install || die

	if [[ ${driver} = radeonsi ]]
	then
		# remove prereq libs
		mmake -C src/gallium/drivers/radeon DESTDIR=${BINDIR} uninstall || die
	fi
}

SRC_URI=(
	ftp://ftp.freedesktop.org/pub/mesa/${PVER%_*}/${SRCFILE}
	mirror://${PNAME}/${SRCFILE}
)

UP2DATE="updatecmd ftp://ftp.freedesktop.org/pub/mesa/current | lasttarball"

split_info_mesa()
{
	DESCRIPTION="Mesa3D OpenGL graphics library."
	DEPEND="${MESA_DEPEND}"

	PROVIDE="virtual/opengl"
}

if driver_enabled dri-swrast
then
	SPLIT_PACKAGES+=" mesa-dri-swrast"
	add_dri_driver swrast

	split_info_mesa-dri-swrast()
	{
		DESCRIPTION="Mesa Software Raster DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-i810
then
	SPLIT_PACKAGES+=" mesa-dri-i810"
	add_dri_driver i810

	split_info_mesa-dri-i810()
	{
		DESCRIPTION="Mesa Intel i810 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-i915
then
	SPLIT_PACKAGES+=" mesa-dri-i915"
	add_dri_driver i915

	split_info_mesa-dri-i915()
	{
		DESCRIPTION="Mesa Intel i915 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-i965
then
	SPLIT_PACKAGES+=" mesa-dri-i965"
	add_dri_driver i965

	split_info_mesa-dri-i965()
	{
		DESCRIPTION="Mesa Intel i965 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-mach64
then
	SPLIT_PACKAGES+=" mesa-dri-mach64"
	add_dri_driver mach64

	split_info_mesa-dri-mach64()
	{
		DESCRIPTION="Mesa ATI mach64 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-mga
then
	SPLIT_PACKAGES+=" mesa-dri-mga"
	add_dri_driver mga

	split_info_mesa-dri-mga()
	{
		DESCRIPTION="Mesa Matrox mga DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-r128
then
	SPLIT_PACKAGES+=" mesa-dri-r128"
	add_dri_driver r128

	split_info_mesa-dri-r128()
	{
		DESCRIPTION="Mesa ATI Rage128 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-r200
then
	SPLIT_PACKAGES+=" mesa-dri-r200"
	add_dri_driver r200

	split_info_mesa-dri-r200()
	{
		DESCRIPTION="Mesa ATI Radeon r200 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-r300
then
	SPLIT_PACKAGES+=" mesa-dri-r300"
	add_dri_driver r300

	split_info_mesa-dri-r300()
	{
		DESCRIPTION="Mesa ATI Radeon r300 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-r600
then
	SPLIT_PACKAGES+=" mesa-dri-r600"
	add_dri_driver r600

	split_info_mesa-dri-r600()
	{
		DESCRIPTION="Mesa ATI Radeon r600 DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-radeon
then
	SPLIT_PACKAGES+=" mesa-dri-radeon"
	add_dri_driver radeon

	split_info_mesa-dri-radeon()
	{
		DESCRIPTION="Mesa ATI Radeon generic DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-savage
then
	SPLIT_PACKAGES+=" mesa-dri-savage"
	add_dri_driver savage

	split_info_mesa-dri-savage()
	{
		DESCRIPTION="Mesa S3 Savage DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-sis
then
	SPLIT_PACKAGES+=" mesa-dri-sis"
	add_dri_driver sis

	split_info_mesa-dri-sis()
	{
		DESCRIPTION="Mesa SIS generic DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-tdfx
then
	SPLIT_PACKAGES+=" mesa-dri-tdfx"
	add_dri_driver tdfx

	split_info_mesa-dri-tdfx()
	{
		DESCRIPTION="Mesa 3DFX Voodoo DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled dri-unichrome
then
	SPLIT_PACKAGES+=" mesa-dri-unichrome"
	add_dri_driver unichrome

	split_info_mesa-dri-unichrome()
	{
		DESCRIPTION="Mesa VIA Chrome DRI driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-i915
then
	SPLIT_PACKAGES+=" mesa-gallium-i915"
	add_gallium_driver i915

	split_info_mesa-gallium-i915()
	{
		DESCRIPTION="Mesa Intel i915 Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-i965
then
	SPLIT_PACKAGES+=" mesa-gallium-i965"
	add_gallium_driver i965

	split_info_mesa-gallium-i965()
	{
		DESCRIPTION="Mesa Intel i965 Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-nouveau
then
	SPLIT_PACKAGES+=" mesa-gallium-nouveau"
	add_gallium_driver nouveau

	split_info_mesa-gallium-nouveau()
	{
		DESCRIPTION="Mesa Nvidia Nouveau Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-r300
then
	SPLIT_PACKAGES+=" mesa-gallium-r300"
	add_gallium_driver r300

	split_info_mesa-gallium-r300()
	{
		DESCRIPTION="Mesa Ati Radeon r300 Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-r600
then
	SPLIT_PACKAGES+=" mesa-gallium-r600"
	add_gallium_driver r600

	split_info_mesa-gallium-r600()
	{
		DESCRIPTION="Mesa Ati Radeon r600 Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-radeonsi
then
	SPLIT_PACKAGES+=" mesa-gallium-radeonsi"
	add_gallium_driver radeonsi

	split_info_mesa-gallium-radeonsi()
	{
		DESCRIPTION="Mesa Ati Radeon radeonsi Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-swrast
then
	SPLIT_PACKAGES+=" mesa-gallium-swrast"
	add_gallium_driver swrast

	split_info_mesa-gallium-swrast()
	{
		DESCRIPTION="Mesa Software Raster Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

if driver_enabled gallium-vmwgfx
then
	SPLIT_PACKAGES+=" mesa-gallium-vmwgfx"
	add_gallium_driver svga

	split_info_mesa-gallium-vmwgfx()
	{
		DESCRIPTION="Mesa Vmware generic Gallium driver."
		DEPEND="== ${PCAT}/mesa-${PVER}"
	}
fi

src_prepare()
{
	munpack ${SRCFILE} || die

	# no debug code in the drives (gentoo)
	all-abis 'find src/mesa/drivers/dri -name *.[hc] -exec egrep -l "\#define\W+DO_DEBUG\W+1" {} \; | xargs --no-run-if-empty sed -i -re "s/\#define\W+DO_DEBUG\W+1/\#define DO_DEBUG 0/" ;'

	# get rid of glut includes
	all-abis rm -f include/GL/glut*h || die

	# fix an error in the libva detection
#	all-abis 'sed -i "s:libva = 0.31.1:libva >= 0.31.1:" configure.ac' || die

	mautoreconf || die
}

src_compile()
{
	# build without rtti and exeptions, fixes issues with llvm as well
	export CXXFLAGS="${CXXFLAGS} -fno-rtti -fno-exceptions -DNDEBUG"

	# texture-float has patent issues in non european contries
	# disable this feature if this legal concern is affected
	local myconf="--enable-texture-float"

	mconfigure \
		--with-dri-driverdir=/usr/'$(mlibdir)'/dri \
		--with-dri-drivers=${MESA_DRI_DRIVERS} \
		--with-gallium-drivers=${MESA_GALLIUM_DRIVERS} \
		--with-egl-platforms=x11,drm \
		--disable-debug \
		--enable-glx-tls \
		--enable-asm \
		--enable-shared-glapi \
		--enable-egl \
		--enable-gles1 \
		--enable-gles2 \
		--enable-gbm \
		--enable-osmesa \
		--enable-xa \
		--enable-gallium-egl \
		--enable-gallium-llvm \
		--enable-vdpau \
		--enable-llvm-shared-libs \
		${myconf} \
		|| die
#		--enable-va \

#	# only build software renderer on multilib arches for 32Bit
#	if [[ ${ARCH} = x86_64 ]]
#	then
#		only-m32 "echo 'DRI_DIRS =' >> configs/autoconf" || die
#	fi

	mmake -j1 || die
}

src_install_mesa()
{
	mmake DESTDIR=${BINDIR} install || die

	# remove all la files
	find ${BINDIR} -name \*.la | xargs rm -fv

	# setup included for dynamic opengl
	# only target arch needed on multilib systems
	minstalldir /usr/$(mlibdir)/opengl/xorg/include/GL || die
	for x in ${BINDIR}/usr/include/GL/{gl.h,glx.h,glext.h,glxext.h}
	do
		if [ -f ${x} -o -L ${x} ]
		then
			mv -fv ${x} ${BINDIR}/usr/$(mlibdir)/opengl/xorg/include/GL || die "${x}"
		fi
	done
	for x in ${BINDIR}/usr/include/{EGL,GLES*,VG,KHR}
	do
		if [ -d ${x} ]
		then
			mv -fv ${x} ${BINDIR}/usr/$(mlibdir)/opengl/xorg/include || die "${x}"
		fi
	done

	for abi in ${MULTILIB_ABIS}
	do
		[[ ${abi} = m32 ]] && ABI_LIBDIR="lib"
		[[ ${abi} = m64 ]] && ABI_LIBDIR="lib64"
		cd ${SRCDIR}-${abi}

		# setup dynamic opengl
		minstalldir /usr/$(mlibdir)/opengl/xorg/lib || die
		minstalldir /usr/$(mlibdir)/opengl/xorg/extensions || die

		local x
		for x in ${BINDIR}/usr/$(mlibdir)/lib{EGL,GL*,OpenVG}.{la,a,so*}
		do
			if [ -f ${x} -o -L ${x} ]
			then
				mv -fv ${x} ${BINDIR}/usr/$(mlibdir)/opengl/xorg/lib || die "${x}"
			fi
		done

		# export LIBGL_DRIVER_PATH location.
		# we are using '/usr/lib/dri' as hardcoded location.
		# but nvidia and ati are using '/usr/$(mlibdir)/xorg/modules/dri'
		# LIBGL_DRIVER_PATH overwrites the hardcoded location and
		# if nvidia or ati driver are installed
		# the dri modules will never be found by libGL
		# use "LIBGL_DEBUG=verbose glxinfo" to check this issue
		minstalldir /etc/env.d || die
		MCONFIG=/etc/env.d/09mesa-${abi}
		mclearconfig || die
		maddconfig "LIBGL_DRIVERS_PATH=/usr/$(mlibdir)/dri" || die

		# remove dri-drivers, they are in extra packages
		rm -rv ${BINDIR}/usr/$(mlibdir)/dri/*_dri.so || die
		# remove vdpau-drivers, they are in extra packages
		rm -rv ${BINDIR}/usr/$(mlibdir)/vdpau || die
		# remove gbm-pipes, they are in extra packages
		rm -rv ${BINDIR}/usr/$(mlibdir)/gallium-pipe/pipe_*.so || die
	done
}

if driver_enabled dri-swrast
then
	src_install_mesa-dri-swrast()
	{
		install_dri_driver swrast || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-i810
then
	src_install_mesa-dri-i810()
	{
		install_dri_driver i810 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-i915
then
	src_install_mesa-dri-i915()
	{
		install_dri_driver i915 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-i965
then
	src_install_mesa-dri-i965()
	{
		install_dri_driver i965 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-mach64
then
	src_install_mesa-dri-mach64()
	{
		install_dri_driver mach64 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-mga
then
	src_install_mesa-dri-mga()
	{
		install_dri_driver mga || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-r128
then
	src_install_mesa-dri-r128()
	{
		install_dri_driver r128 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-r200
then
	src_install_mesa-dri-r200()
	{
		install_dri_driver r200 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-r300
then
	src_install_mesa-dri-r300()
	{
		install_dri_driver r300 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-r600
then
	src_install_mesa-dri-r600()
	{
		install_dri_driver r600 || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-radeon
then
	src_install_mesa-dri-radeon()
	{
		install_dri_driver radeon || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-savage
then
	src_install_mesa-dri-savage()
	{
		install_dri_driver savaga || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-sis
then
	src_install_mesa-dri-sis()
	{
		install_dri_driver sis || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-tdfx
then
	src_install_mesa-dri-tdfx()
	{
		install_dri_driver tdfx || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled dri-unichrome
then
	src_install_mesa-dri-unichrome()
	{
		install_dri_driver unichrome || die
		setup_dynamic_dri classic || die
	}
fi

if driver_enabled gallium-i915
then
	src_install_mesa-gallium-i915()
	{
		install_gallium_driver i915 || die
		setup_dynamic_dri gallium || die

		# gbm
		install_gallium_pipe_driver i915 || die
	}
fi

if driver_enabled gallium-i965
then
	src_install_mesa-gallium-i965()
	{
		install_gallium_driver i965 || die
		setup_dynamic_dri gallium || die

		# gbm
		install_gallium_pipe_driver i965 || die
	}
fi

if driver_enabled gallium-nouveau
then
	src_install_mesa-gallium-nouveau()
	{
		install_gallium_driver nouveau || die
		setup_dynamic_dri gallium || die

		# vdpau
		install_gallium_vdpau_driver nouveau || die

		# gbm
		install_gallium_pipe_driver nouveau || die
	}
fi

if driver_enabled gallium-r300
then
	src_install_mesa-gallium-r300()
	{
		install_gallium_driver r300 || die
		setup_dynamic_dri gallium || die

		# vdpau
		#install_gallium_vdpau_driver r300 || die

		# gbm
		install_gallium_pipe_driver r300 || die
	}
fi

if driver_enabled gallium-r600
then
	src_install_mesa-gallium-r600()
	{
		install_gallium_driver r600 || die
		setup_dynamic_dri gallium || die

		# vdpau
		install_gallium_vdpau_driver r600 || die

		# gbm
		install_gallium_pipe_driver r600 || die
	}
fi

if driver_enabled gallium-radeonsi
then
	src_install_mesa-gallium-radeonsi()
	{
		install_gallium_driver radeonsi || die
		setup_dynamic_dri gallium || die

		# vdpau
		install_gallium_vdpau_driver radeonsi || die

		# gbm
		install_gallium_pipe_driver radeonsi || die
	}
fi

if driver_enabled gallium-swrast
then
	src_install_mesa-gallium-swrast()
	{
		install_gallium_driver swrast || die
		setup_dynamic_dri gallium || die

		# vdpau
		#install_gallium_vdpau_driver softpipe || die

		# gbm
		install_gallium_pipe_driver swrast || die
	}
fi

if driver_enabled gallium-vmwgfx
then
	src_install_mesa-gallium-vmwgfx()
	{
		install_gallium_driver vmwgfx || die
		setup_dynamic_dri gallium || die

		# gbm
		install_gallium_pipe_driver vmwgfx || die
	}
fi

# setup_dynamic_dri $impl
# impl may be classic or gallium atm
setup_dynamic_dri()
{
	local impl="$1"
	local i
	local abi

	[[ -z ${impl} ]] && die "missing dri implementation!"
	case ${impl} in
		classic|gallium) ;;
		*) die "unkown dri implementation '${impl}'!" ;;
	esac

	echo "settin up dynamic dri for a '${impl} implementation..."
	if [[ -z ${MULTILIB_ABIS} ]]
	then
		minstalldir /usr/$(mlibdir)/mesa/${impl} || die
		for i in ${BINDIR}/usr/$(mlibdir)/dri/*_dri.so
		do
			echo -n "  processing ${i}:"
			if [ -f ${i} -o -L ${i} ]
			then
				echo -n " moving"
				mv -vf ${i} ${BINDIR}/usr/$(mlibdir)/mesa/${impl} || die "moving ${i}"
			fi
		done
	else
		for abi in ${MULTILIB_ABIS}
		do
			[[ ${abi} = m32 ]] && ABI_LIBDIR="lib"
			[[ ${abi} = m64 ]] && ABI_LIBDIR="lib64"

			minstalldir /usr/$(mlibdir)/mesa/${impl} || die
			for i in ${BINDIR}/usr/$(mlibdir)/dri/*_dri.so
			do
				echo -n "  processing ${i}"
				if [ -f ${i} -o -L ${i} ]
				then
					echo -n " moving"
					mv -vf ${i} ${BINDIR}/usr/$(mlibdir)/mesa/${impl} || die "moving ${i}"
				fi
				echo " done"
			done
		done
	fi
}

postinstall_mesa()
{
	${MROOT}/usr/sbin/opengl-update --use-old xorg
}

if driver_enabled dri-swrast
then
	postinstall_mesa-dri-swrast()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-i810
then
	postinstall_mesa-dri-i810()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-i915
then
	postinstall_mesa-dri-i915()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-i965
then
	postinstall_mesa-dri-i965()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-mach64
then
	postinstall_mesa-dri-mach64()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-mga
then
	postinstall_mesa-dri-mga()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-r128
then
	postinstall_mesa-dri-r128()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-r200
then
	postinstall_mesa-dri-r200()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-r300
then
	postinstall_mesa-dri-r300()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-r600
then
	postinstall_mesa-dri-r600()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-radeon
then
	postinstall_mesa-dri-radeon()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-savage
then
	postinstall_mesa-dri-savage()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-sis
then
	postinstall_mesa-dri-sis()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-tdfx
then
	postinstall_mesa-dri-tdfx()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled dri-unichrome
then
	postinstall_mesa-dri-unichrome()
	{
		${MROOT}/usr/sbin/dri-update --use-old classic
	}
fi

if driver_enabled gallium-i915
then
	postinstall_mesa-gallium-i915()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi

if driver_enabled gallium-i965
then
	postinstall_mesa-gallium-i965()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi

if driver_enabled gallium-nouveau
then
	postinstall_mesa-gallium-nouveau()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi

if driver_enabled gallium-r300
then
	postinstall_mesa-gallium-r300()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi

if driver_enabled gallium-r600
then
	postinstall_mesa-gallium-r600()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi

if driver_enabled gallium-radeonsi
then
	postinstall_mesa-gallium-radeonsi()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi

if driver_enabled gallium-swrast
then
	postinstall_mesa-gallium-swrast()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi

if driver_enabled gallium-vmwgfx
then
	postinstall_mesa-gallium-vmwgfx()
	{
		${MROOT}/usr/sbin/dri-update --use-old gallium
	}
fi