# $Id: mesa-7.8.1-r1.smage2 5292 2010-04-20 19:02:07Z niro $

PNAME="mesa"
PVER="7.8.1"
PBUILD="r1"

PCATEGORIE="media-libs"
STATE="unstable"

DESCRIPTION="Mesa3D OpenGL graphics library."
HOMEPAGE="http://mesa3d.sourceforge.net/"

DEPEND=">= dev-libs/expat-2
	>= x11-libs/libX11-1
	>= x11-libs/libXext-1
	>= x11-libs/libXxf86vm-1
	>= x11-libs/libXi-1
	>= x11-libs/libXmu-1
	>= x11-libs/libdrm-2.4
	>= x11-libs/libICE-1
	>= x11-base/opengl-update-magellan-2.2.9
	>= x11-libs/libxcb-1
	>= x11-libs/libXfixes-4
	>= x11-libs/libXdamage-1"

SDEPEND=">= dev-util/pkgconfig-0.23
	>= x11-misc/makedepend-1
	>= x11-proto/xf86vidmodeproto-2.3
	>= x11-libs/libXxf86vm-1.1
	>= x11-proto/glproto-1.4.9
	>= x11-proto/inputproto-1
	>= x11-proto/xextproto-7
	>= x11-proto/xf86driproto-2
	>= x11-proto/dri2proto-2.0
	>= x11-proto/xcb-proto-1
	>= x11-proto/xproto-7
	>= x11-proto/fixesproto-4
	>= x11-proto/damageproto-1"

PROVIDE="virtual/opengl"

# must be set before the include of multilib!
EMUL_LINUX_32=true
sminclude xorg mtools multilib mcore

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

SRC_URI=(
	ftp://ftp.freedesktop.org/pub/mesa/${PVER}/${SRCFILE}
	sourceforge://mesa3d/${SRCFILE}
	mirror://${PNAME}/${SRCFILE}
	mirror://${PNAME}/libGLU.la
	mirror://${PNAME}/libGL.la
)

UP2DATE="updatecmd_sourceforge mesa3d MesaLib"

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 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
}

src_compile()
{
	# gallium is highly experimental, disabled atm!
	mconfigure \
		--with-driver=dri \
		--with-dri-driverdir=/usr/'$(mlibdir)'/dri \
		--disable-debug \
		--disable-glut \
		--disable-ttm-api \
		--without-demos \
		--enable-glx-tls \
		--enable-asm \
		--enable-xcb \
		--enable-glw \
		--disable-gallium \
		|| die

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

	mmake || die
}

src_install()
{
	# needed directories
	minstalldir /etc/env.d || die

	mmake DESTDIR=${BINDIR} install || die

	# missing gl headers
	minstallfile src/glw/GLwDrawA.h /usr/include/GL || die

	# remove private headers
	rm -f ${BINDIR}/usr/include/GL/GLw*P.h || die

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

		# fix opengl-symlinks
		# first remove invalid symlinks
		find ${BINDIR}/usr/$(mlibdir) -name libGL\.* -type l | xargs rm -f
		# now create required opengl-symlinks
		mlink libGL.so.1.2 /usr/$(mlibdir)/libGL.so || die
		mlink libGL.so.1.2 /usr/$(mlibdir)/libGL.so.1 || die

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

		local x
		for x in ${BINDIR}/usr/$(mlibdir)/libGL.so* \
			${BINDIR}/usr/$(mlibdir)/libGL.la \
			${BINDIR}/usr/$(mlibdir)/libGL.a
		do
			if [ -f ${x} -o -L ${x} ]
			then
				# libGL.a cause problems with tuxracer, etc
				mv -f ${x} ${BINDIR}/usr/$(mlibdir)/opengl/xorg/lib || die "${x}"
			fi
		done
		for x in ${BINDIR}/usr/include/GL/{gl.h,glx.h,glext.h,glxext.h}
		do
			if [ -f ${x} -o -L ${x} ]
			then
				mv -f ${x} ${BINDIR}/usr/$(mlibdir)/opengl/xorg/include || die "${x}"
			fi
		done

		# satisfy libtool
		minstallfile -s libGLU.la /usr/$(mlibdir) || die
		minstallfile -s libGL.la /usr/$(mlibdir)/opengl/xorg/lib || die

		# fix libdir on 64bit arches
		if [[ $(mlibdir) != lib ]]
		then
			sed -i "s:/usr/lib:/usr/$(mlibdir):g" ${BINDIR}/usr/$(mlibdir)/libGLU.la || die
			sed -i "s:/usr/lib:/usr/$(mlibdir):g" ${BINDIR}/usr/$(mlibdir)/opengl/xorg/lib/libGL.la || die
		fi

		# create the two-number versioned libs (.so.#.#), since only .so.# and
		# .so.#.#.# were made
		local x
		for x in ${BINDIR}/usr/$(mlibdir)/libGLU.so.*.*.* \
			${BINDIR}/usr/$(mlibdir)/libGLw.so.*.*.*
		do
			local lib_name_dot3="$(basename $(ls ${x}))"
			local lib_name_dot2="${lib_name_dot3%.*}"
			local lib_name_dot1="${lib_name_dot2%.*}"
			local lib_name_dot0="${lib_name_dot1%.*}"
			mlink ${lib_name_dot3} /usr/$(mlibdir)/${lib_name_dot2} || die "${x}"
			mlink ${lib_name_dot3} /usr/$(mlibdir)/${lib_name_dot1} || die "${x}"
			mlink ${lib_name_dot3} /usr/$(mlibdir)/${lib_name_dot0} || die "${x}"
		done

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

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