# $Id$

PNAME="grub"
PVER="0.97"
PBUILD="r19"

PCATEGORIE="sys-apps"
STATE="unstable"

DESCRIPTION="GNU GRUB boot loader."
HOMEPAGE="http://www.gnu.org/software/grub/"

DEPEND=">= sys-libs/ncurses-5.9"

SDEPEND=">= sys-dev/automake-4
	>= sys-dev/autoconf-5"

SRCFILE="${PNAME}-${PVER}.tar.gz"
SRCDIR="${BUILDDIR}/${PNAME}-${PVER}"

sminclude mtools

SRC_URI=(
	ftp://alpha.gnu.org/gnu/${PNAME}/${SRCFILE}
	mirror://${PNAME}/${SRCFILE}
	mirror://${PNAME}/${PNAME}-${PVER}-splash.patch
	mirror://${PNAME}/${PNAME}-${PVER}-pic.patch
	mirror://${PNAME}/${PNAME}-${PVER}-initrdmax.patch
	mirror://${PNAME}/${PNAME}-${PVER}-nxstack.patch
	mirror://${PNAME}/${PNAME}-${PVER}-unsigned-addresses.patch
	mirror://${PNAME}/${PNAME}-${PVER}-ext4-4.patch
	mirror://${PNAME}/${PNAME}-${PVER}-virtio-blk-support-2.patch
	mirror://${PNAME}/${PNAME}-${PVER}-gpt.patch
	mirror://${PNAME}/${PNAME}-${PVER}-i2o.patch
	mirror://${PNAME}/${PNAME}-${PVER}-intelmac.patch
	mirror://${PNAME}/${PNAME}-${PVER}-more-raid.patch
	mirror://${PNAME}/${PNAME}-${PVER}-special-devices.patch
	mirror://${PNAME}/${PNAME}-${PVER}-inode-size.patch
	mirror://${PNAME}/${PNAME}-${PVER}-kvm-vda-2.patch
	mirror://${PNAME}/${PNAME}-${PVER}-netboot-pic.patch
	mirror://${PNAME}/${PNAME}-${PVER}-netboot-compile-fixes.patch
)

# get only 0.xx versions!
UP2DATE="updatecmd ftp://alpha.gnu.org/gnu/${PNAME} | grep -- -0.[0-9].* | lasttarball gz"

# grub doesn't like CFLAG optimation,
# and do you really want that at your bootloader ??
unset CFLAGS
unset CXXFLAGS

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

	# splash support
	mpatch ${PNAME}-${PVER}-splash.patch || die

	# fix pic issues
	mpatch ${PNAME}-${PVER}-pic.patch || die

	# do not check initrdmax -> we are using more than 4mb
	mpatch ${PNAME}-${PVER}-initrdmax.patch || die

	# fix nx issues on x86_64
	mpatch ${PNAME}-${PVER}-nxstack.patch || die

	# fix issues on systems with more than 2gb of ram
	mpatch ${PNAME}-${PVER}-unsigned-addresses.patch || die

	# support booting from ext4 filesystems
	mpatch ${PNAME}-${PVER}-ext4-4.patch || die

	# handle virtio_blk device names in grub-install
	mpatch ${PNAME}-${PVER}-virtio-blk-support-2.patch || die

	# support gpt partition tables
	mpatch ${PNAME}-${PVER}-gpt.patch || die

	# support I2O disks
	mpatch ${PNAME}-${PVER}-i2o.patch || die

	# support Intel Macs (gateA20)
	mpatch ${PNAME}-${PVER}-intelmac.patch || die

	# support cciss and other raid devices
	mpatch ${PNAME}-${PVER}-more-raid.patch || die

	# support dev/{ida,cciss,ataraid,rd} devices names
	mpatch ${PNAME}-${PVER}-special-devices.patch || die

	# support bigger inode sizes (dynamic/V2 inodes)
	mpatch ${PNAME}-${PVER}-inode-size.patch || die

	mpatch ${PNAME}-${PVER}-kvm-vda-2.patch || die

	# fix pic issues with the net drivers
# 	mpatch ${PNAME}-${PVER}-netboot-pic.patch || die

	# fix compilation issues
# 	mpatch ${PNAME}-${PVER}-netboot-compile-fixes.patch || die

	# rebuild makefiles
	autoreconf --install --force || die
}

src_compile()
{
	cd ${SRCDIR}

	# fixes compilation on x86_64; grub cannot build natively on 64bit
	# building a static grub, with -m32 in this case
	if [[ ${ARCH} = x86_64 ]]
	then
		export CC="gcc -m32"
		export LDFLAGS="-static"
	fi

# 	# build netboot grub first
# 	mconfigure \
# 		--enable-diskless \
# 		--enable-3c503 \
# 		--enable-3c507 \
# 		--enable-3c509 \
# 		--enable-3c529 \
# 		--enable-3c595 \
# 		--enable-3c590x \
# 		--enable-cs89x0 \
# 		--enable-davicom \
# 		--enable-depca \
# 		--enable-eepro \
# 		--enable-eepro100 \
# 		--enable-epic100 \
# 		--enable-exos205 \
# 		--enable-ni5210 \
# 		--enable-lance \
# 		--enable-ne2100 \
# 		--enable-ni5010 \
# 		--enable-ni6510 \
# 		--enable-natsemi \
# 		--enable-ne \
# 		--enable-ns8390 \
# 		--enable-wd \
# 		--enable-otulip \
# 		--enable-rtl8139 \
# 		--enable-sis900 \
# 		--enable-sk-g16 \
# 		--enable-smc9000 \
# 		--enable-tiara \
# 		--enable-tulip \
# 		--enable-via-rhine \
# 		--enable-w89c840\
# 		|| die
# 
# 	mmake w89c840_o_CFLAGS="-O" || die
# 	mv stage2/nbgrub ${SRCDIR}/ || die
# 	mv stage2/pxegrub ${SRCDIR}/ || die
# 	mv stage2/stage2 stage2/stage2.netboot || die
# 
# 	# clean up sources
# 	make clean || die

	# build the normal grub
	mconfigure --disable-auto-linux-mem-opt || die
	mmake || die
}

src_install()
{
	cd ${SRCDIR}

	# needed directories
	minstalldir /boot/grub || die

	mmake DESTDIR=${BINDIR} install || die

	local archhost
	case ${ARCH} in
		i486) archhost="${CHOST/-linux-gnu/}"
			archhost="${archhost/i486/i386}"
			;;
		*) archhost="${CHOST/-linux-gnu/}" ;;
	esac

# 	# install netboot grub
# 	minstallexec nbgrub /usr/$(mlibdir)/grub/${archhost}/ || die 
# 	minstallexec pxegrub /usr/$(mlibdir)/grub/${archhost}/ || die
# 	minstallexec stage2/stage2.netboot /usr/$(mlibdir)/grub/${archhost}/ || die

	# now copying all stage files
	for i in ${BINDIR}/usr/$(mlibdir)/grub/${archhost}/*
	do
		[ -f ${i} ] && cp -p ${i} ${BINDIR}/boot/grub || die ${i}
	done
}

preinstall()
{
	mount /boot &> /dev/null
}

postinstall()
{
	# creates some essential links
	if [ ! -e ${MROOT}/boot/boot ]
	then
		ln -sf . ${MROOT}/boot/boot
	fi

	if [ ! -e ${MROOT}/boot/grub/menu.lst ]
	then
		ln -sf /boot/grub/grub.conf ${MROOT}/boot/grub/menu.lst
	fi

	# creates example grub.conf
	if [ ! -e ${MROOT}/boot/grub/grub.conf.example ]
	then
		cat > ${MROOT}/boot/grub/grub.conf.example << "EOF"
default 0
timeout 30

title Magellan-Linux
root (hd0,0)
kernel (hd0,0)/boot/bzImage root=/dev/hda1
EOF
	fi

	# update grub
	grub --batch --device-map=/boot/grub/device.map </boot/grub/grub.conf >&/dev/null;
}