# Copyright 1999-2000 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License, v2 or later
# Author Daniel Robbins <drobbins@gentoo.org>
# /home/cvsroot/gentoo-x86/sys-kernel/linux/linux-2.4.4.3.ebuild,v 1.1 2001/05/02 14:31:06 achim Exp

#OKV=original kernel version, KV=patched kernel version

OKV=2.4.6
KV=2.4.6
S=${WORKDIR}/linux-${KV}
S2=${WORKDIR}/linux-${KV}-extras
if [ $PN = "linux-extras" ]
then
	KS=/usr/src/linux-${KV}
	KS2=/usr/src/linux-${KV}-extras
else
	KS=${S}
	KS2=${S2}
fi

# Kernel Features      Enabled   USE Variable      Status
#
# Reiserfs             Y         -                 Production-ready
# JFS                  N         jfs               Testing-only (commented out for now)
# LVM                  Y         lvm               Production-ready
# ext3                 Y         ext3              Production-ready
# MOSIX                Y         mosix             Testing only
# XFS                  N         xfs               Will add soon
# PCMCIA-CS            Y         pcmcia            Need to move this to its own ebuild
# ALSA                 N         alsa              Need to move this to its own ebuild
# lm-sensors           N         lm_sensors        Need to move this to its own ebuild

LVMV=0.9.1_beta7
EXT3V=2.4-0.9.1-246
MOSV=1.0.5
# AV=0.5.11
#JFSV=1.0.0
#KNV="6.g"
#PIV="1.d"
PCV="3.1.27"

[ "${PN}" = "linux" ] && DESCRIPTION="Linux kernel version ${KV}, including modules, binary tools, libraries and includes"
[ "${PN}" = "linux-sources" ] && DESCRIPTION="Linux kernel version ${KV} - full sources"
[ "${PN}" = "linux-extras" ] && DESCRIPTION="Linux kernel support tools and libraries"

# We use build in /usr/src/linux in case of linux-extras
# so we need no sources
if [ ! "${PN}" = "linux-extras" ] ; then
SRC_URI="http://www.kernel.org/pub/linux/kernel/v2.4/linux-${OKV}.tar.bz2
	http://prdownloads.sourceforge.net/pcmcia-cs/pcmcia-cs-${PCV}.tar.gz
	http://www.zip.com.au/~akpm/ext3-${EXT3V}.gz
	http://oss.software.ibm.com/developerworks/opensource/jfs/project/pub/jfs-1.0.0-patch.tar.gz
	ftp://ftp.cs.huji.ac.il/users/mosix/MOSIX-${MOSV}.tar.gz"
	ftp://ftp.sistina.com/pub/LVM/0.9.1_beta/lvm_${LVMV}.tar.gz
fi
#	http://www.netroedge.com/~lm78/archive/lm_sensors-${SENV}.tar.gz
#	http://www.netroedge.com/~lm78/archive/i2c-${SENV}.tar.gz
#	ftp://ftp.alsa-project.org/pub/driver/alsa-driver-${AV}.tar.bz2
	
if [ "$PN" != "linux-extras" ]
then
	PROVIDE="virtual/kernel"
fi
#if [ "$PN" != "linux-sources" ]
#then
#	if [ "`use alsa`" ]
#	then
#		PROVIDE="$PROVIDE virtual/alsa"
#	fi
#fi

HOMEPAGE="http://www.kernel.org/
	  http://www.netroedge.com/~lm78/
	  http://www.namesys.com
	  http://www.sistina.com/lvm/
	  http://pcmcia-cs.sourceforge.net"


#these deps are messed up; fix 'em and add ncurses (required my mosix compile, menuconfig)
if [ $PN != "linux-extras" ] ; then
    RDEPEND=">=sys-apps/e2fsprogs-1.22 >=sys-apps/util-linux-2.11f >=sys-apps/reiserfs-utils-3.6.25-r1"
    DEPEND=">=sys-apps/modutils-2.4.2 sys-devel/perl"
else
    DEPEND=">=sys-kernel/${PF/extras/sources}"
fi
if [ "`use build`" ] && [ $PN = "linux-sources" ] ; then
    DEPEND=""
    RDEPEND=""
fi

# this is not pretty...
LINUX_HOSTCFLAGS="-Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -I${S}/include"

src_unpack() {

    # We only need to unpack for linux and linux-sources

    if [ ! "$PN" = "linux-extras" ]
	then

		#unpack kernel and apply reiserfs-related patches
		cd ${WORKDIR}
		unpack linux-${OKV}.tar.bz2
		try mv linux linux-${KV}
		cd ${S}
#		echo "Applying ${KV} patch..."
#		try bzip2 -dc ${DISTDIR}/patch-${KV}.bz2 | patch -p1
		
#		This patch is just *too* unweildy and creates tons of rejects all over the place (boo!)
#		echo "Applying XFS patch..."
#		local x
#		for x in easy only tricky acl-extattr misc
#		do
#			cat ${DISTDIR}/patch-2.4.6-xfs-${x}.bz2 | bzip2 -d | patch -p1
#		done		
		
		dodir /usr/src/linux-${KV}-extras

		if [ "`use mosix`" ]
		then
			echo "Applying MOSIX patch..."
			cd ${S2}
			mkdir MOSIX-${MOSV}
			cd MOSIX-${MOSV}
			unpack MOSIX-${MOSV}.tar.gz
			cd ${S}
			try cat ${S2}/MOSIX-${MOSV}/patches.2.4.6 | patch -p0
			tar -x --no-same-owner -vf ${S2}/MOSIX-${MOSV}/kernel.new.2.4.6.tar
			cd ${S2}
			mkdir user
			tar -x --no-same-owner -vf user.tar -C user
			rm user.tar
		fi
		
		cd ${S}
		echo "Applying reiserfs-NFS fix..."
		try cat ${FILESDIR}/2.4.6/linux-2.4.6-reiserfs-NFS.patch | patch -N -p1
				
		if [ "`use lvm`" ]
		then
			#create and apply LVM patch.  The tools get built later.
			cd ${S2}
			echo "Unpacking and applying LVM patch..."
			unpack lvm_${LVMV}.tar.gz
			try cd LVM/${LVMV}
	
			# I had to hack this in so that LVM will look in the current linux
			# source directory instead of /usr/src/linux for stuff - pete
			try CFLAGS=\""${CFLAGS} -I${S}/include"\" ./configure --prefix=/ --mandir=/usr/share/man --with-kernel_dir="${S}"
			cd PATCHES
			try make KERNEL_VERSION=${KV} KERNEL_DIR=${S}
			cd ${S}
			# the -l option allows this patch to apply cleanly (ignore whitespace changes)
			try patch -l -p1 < ${S2}/LVM/${LVMV}/PATCHES/lvm-${LVMV}-${KV}.patch
			cd ${S}/drivers/md
			try patch -p0 < ${FILESDIR}/${KV}/lvm.c.diff
		fi
    
#		if [ "`use alsa`" ]
#		then  
#			#unpack alsa drivers
#			echo "Unpacking ALSA drivers..."
#			cd ${S}/extras
#			unpack alsa-driver-${AV}.tar.bz2
#		fi
    
#		if [ "`use lm_sensors`" ]
#		then
#			#unpack and apply the lm_sensors patch
#			echo "Unpacking and applying lm_sensors patch..."
#			cd ${S}/extras
#			unpack lm_sensors-${SENV}.tar.gz
#			unpack i2c-${SENV}.tar.gz
#			try cd i2c-${SENV}
#			try rmdir src
#			try ln -s ../.. src
#			try mkpatch/mkpatch.pl . /usr/src/linux | patch -p1 -E -d /usr/src/linux
#			cp Makefile Makefile.orig
#			try sed -e \"s:^LINUX=.*:LINUX=src:\" \
#			-e \"s/^COMPILE_KERNEL.*/COMPILE_KERNEL := 2/\" \
#			-e \"s:^I2C_HEADERS.*:I2C_HEADERS=.i2c-src/kernel:\" \
#			-e \"s#^DESTDIR.*#DESTDIR := ${D}#\" \
#			-e \"s#^PREFIX.*#PREFIX := /usr#\" \
#			-e \"s#^MANDIR.*#MANDIR := /usr/share/man#\" \
#			Makefile.orig > Makefile
#			try cd ${S}/extras/lm_sensors-${SENV}
#			try rmdir src
#			try ln -s ../.. src
#			try ln -s ../i2c-${SENV} i2c-src
#			try mkpatch/mkpatch.pl . /usr/src/linux | patch -p1 -E -d /usr/src/linux
#			try sed -e \"s:^LINUX=.*:LINUX=src:\" \
#			-e \"s/^COMPILE_KERNEL.*/COMPILE_KERNEL := 2/\" \
#			-e \"s:^I2C_HEADERS.*:I2C_HEADERS=.i2c-src/kernel:\" \
#			-e \"s#^DESTDIR.*#DESTDIR := ${D}#\" \
#			-e \"s#^PREFIX.*#PREFIX := /usr#\" \
#			-e \"s#^MANDIR.*#MANDIR := /usr/share/man#\" \
#			Makefile.orig > Makefile
#		 fi
		if [ "`use pcmcia-cs`" ]
		then
			echo "Unpacking pcmcia-cs tools..."
			cd ${S2}
			unpack pcmcia-cs-${PCV}.tar.gz
		#	patch -p0 < ${FILESDIR}/${KV}/pcmcia-cs-${PCV}-gentoo.diff
		fi
		
		#JFS patch works; commented out because it's not ready for production use
		#if [ "`use jfs`" ]
		#then
		#	echo "Applying JFS patch..."
		#	cd ${WORKDIR}
		#	unpack jfs-${JFSV}-patch.tar.gz
		#	cd ${S}
		#	patch -p1 < ${WORKDIR}/jfs-common-v1.0.0-patch
		#	patch -p1 < ${WORKDIR}/jfs-2.4.5-v1.0.0-patch
		#fi
		
		if [ "`use ext3`" ]
		then
			echo "Applying ext3 patch..."
			if [ "`use mosix`" ]
			then
				echo
				echo "There will be one reject; we will fix it. (no worries)"
				echo
			fi
			cd ${S}
			gzip -dc ${DISTDIR}/ext3-${EXT3V}.gz | patch -l -p1
			if [ "`use mosix`" ]
			then
				echo 
				echo "Fixing reject in include/linux/sched.h..."
				echo
				cp ${FILESDIR}/${KV}/sched.h include/linux
			fi
		fi
			
		#get sources ready for compilation or for sitting at /usr/src/linux
		echo "Preparing for compilation..."
		cd ${S}
		#sometimes we have icky kernel symbols; this seems to get rid of them
		try make mrproper

		#linux-sources needs to be fully configured, too.  Not just linux
		if [ "${PN}" != "linux-extras" ]
		then
			#this is the configuration for the default kernel
			try cp ${FILESDIR}/${KV}/config.bootcd .config
			try yes \"\" \| make oldconfig
			echo "Ignore any errors from the yes command above."
		fi
    
		#fix silly permissions in tarball
		cd ${WORKDIR}
		chown -R 0.0 ${S}
		chmod -R a+r-w+X,u+w ${S}
	
	fi
}
		
src_compile() {
	if [ "${PN}" != "linux-sources" ]
	then
		if [ $PN = "linux" ]
		then
			try make symlinks
		fi
		if [ "`use lvm`" ]
		then
			#LVM tools are included in the linux and linux-extras pakcages
			cd ${KS2}/LVM/${LVMV}
	
			# This is needed for linux-extras
			if [ -f "Makefile" ]
			then
				try make clean
			fi
			# I had to hack this in so that LVM will look in the current linux
			# source directory instead of /usr/src/linux for stuff - pete
			try CFLAGS=\""${CFLAGS} -I${KS}/include"\" ./configure --prefix=/ --mandir=/usr/share/man --with-kernel_dir="${KS}"
			try make 
		fi
	
#		if [ "`use lm_sensors`" ]
#		then
#			cd ${KS}/extras/lm_sensors-${SENV}
#			try make
#		fi
		
#		Works, just commented out because JFS isn't ready to be used by non-developers
#		if [ "`use jfs`" ]
#		then
#			cd ${S}/fs/jfs/utils
#			try make
#			cd output
#			into /
#			dosbin *
#			doman `find -iname *.8`
#		fi
			
		if [ "$PN" == "linux" ]
		then
			try make HOSTCFLAGS=\""${LINUX_HOSTCFLAGS}"\" dep
			try make HOSTCFLAGS=\""${LINUX_HOSTCFLAGS}"\" bzImage
			#LEX=\""flex -l"\" bzImage
			try make HOSTCFLAGS=\""${LINUX_HOSTCFLAGS}"\" modules
			#LEX=\""flex -l"\" modules
		fi
		
#This is moving into its own package RSN
# This must come after the kernel compilation in linux
#		if [ "`use alsa`" ]
#		then
#			cd ${KS}/extras/alsa-driver-${AV}
#			# This is needed for linux-extras
#			if [ -f "Makefile.conf" ] 
#			then
#				try make clean
#			fi
#			try ./configure --with-kernel=\"${KS}\" --with-isapnp=yes --with-sequencer=yes --with-oss=yes --with-cards=all
#			try make
#		fi
		
		if [ "`use mosix`" ]
		then
			cd ${KS2}/MOSIX-${MOSV}
			local x
			for x in lib/moslib sbin/setpe sbin/tune bin/mosrun usr.bin/mon usr.bin/migrate usr.bin/mosctl
			do
				cd $x
				make
				cd ../..
			done
		fi

		if [ "`use pcmcia-cs`" ]
		then
			cd ${KS2}/pcmcia-cs-${PCV}
			# This is needed for linux-extras
			if [ -f "Makefile" ] 
			then
				try make clean
			fi
			try ./Configure -n --kernel=${KS} --moddir=/lib/modules/${KV} \
			--notrust --cardbus --nopnp --noapm --srctree --sysv --rcdir=/etc/rc.d/
			try make all
		fi
	else
		#linux-sources
		try make HOSTCFLAGS=\""${LINUX_HOSTCFLAGS}"\" dep
	fi
}

src_install() {
    # We install the alsa headers in all three packages
#   if [ "`use alsa`" ]
#	then
#		#i get alsa includes
#		cd ${KS}/extras/alsa-driver-${AV}
#		insinto /usr/src/linux-${KV}/include/linux
#		cd include
#		doins asound.h asoundid.h asequencer.h ainstr_*.h
#   fi

	if [ ! "${PN}" = "linux-sources" ]
    then
		dodir /usr/lib
	
		if [ "`use mosix`" ]
		then
			cd ${KS2}/MOSIX-${MOSV}
			dodir /usr/lib /usr/include
			dolib.a libmos.a
			dolib.so libmos.so.0
			ln -s libmos.so.0 ${D}/usr/lib/libmos.so
			insinto /usr/include
			doins *.h

			cd ../../sbin/setpe
			doman setpe.1
			into /
			dosbin setpe

			cd ../tune
			dosbin tune mtune tunepass tune_kernel prep_tune
			doman tune.1

			cd ../../bin/mosrun
			dobin mosrun nomig runhome runon cpujob iojob nodecay slowdecay fastdecay
			doman mosrun.1
			local x
			for x in nomig runhome runon cpujob iojob nodecay slowdecay fastdecay
			do
				ln -s mosrun.1.gz ${D}/usr/share/man/man1/${x}.1.gz
			done

			cd ../../usr.bin/mon
			into /usr
			dobin mon
			doman mon.1

			cd ../migrate
			dobin migrate
			doman migrate.1

			cd ../mosctl
			dobin mosctl
			doman mosctl.1

			exeinto /etc/rc.d/init.d
			newexe ${FILESDIR}/${KV}/mosix.init mosix
		
			cd ${KS2}/MOSIX-${MOSV}
			for x in lib/moslib sbin/setpe sbin/tune bin/mosrun usr.bin/mon usr.bin/migrate usr.bin/mosctl
			do
				cd ${x}
				make clean
				cd ../..
			done
		fi
		
		if [ "`use lvm`" ]
		then
			cd ${KS2}/LVM/${LVMV}/tools
	    
			try CFLAGS=\""${CFLAGS} -I${KS}/include"\" make install -e prefix=${D} mandir=${D}/usr/share/man \
			sbindir=${D}/sbin libdir=${D}/lib
			#no need for a static library in /lib
			mv ${D}/lib/*.a ${D}/usr/lib
		fi
	
#		if [ "`use lm_sensors`" ]
#		then
#			echo "Install sensor tools..."
#			#install sensors tools
#			cd ${KS}/extras/lm_sensors-${SENV}
#			make install
#		fi

		if [ "${PN}" = "linux" ] 
		then
			dodir /usr/src
			dodir /usr/src/linux-${KV}
			cd ${D}/usr/src
			#grab includes and documentation only
			echo ">>> Copying includes and documentation..."
			cp -ax ${S}/include ${D}/usr/src/linux-${KV}
			cp -ax ${S}/Documentation ${D}/usr/src/linux-${KV}
	       
			#grab compiled kernel
			dodir /boot/boot
			insinto /boot/boot
			cd ${S}
			doins arch/i386/boot/bzImage
	    
			#grab modules
			# Do we have a bug in modutils ?
			# Meanwhile we use this quick fix (achim)
	    
			install -d ${D}/lib/modules/`uname -r`
			try make INSTALL_MOD_PATH=${D} modules_install
	    
			depmod -b ${D} -F ${S}/System.map ${KV}	
			#rm -rf ${D}/lib/modules/`uname -r`
			#fix symlink
			cd ${D}/lib/modules/${KV}
			rm build
			ln -sf /usr/src/linux-${KV} build
		fi

#       if [ "`use alsa`" ]
#       then
#		  	#install ALSA modules
#           cd ${KS}/extras/alsa-driver-${AV}
#			dodoc INSTALL FAQ
#			dodir /lib/modules/${KV}/misc
#			cp modules/*.o ${D}/lib/modules/${KV}/misc
#       fi
		if [ "`use pcmcia-cs`" ]
		then
			#install PCMCIA modules and utilities
			cd ${KS2}/pcmcia-cs-${PCV}
			try make PREFIX=${D} MANDIR=${D}/usr/share/man install  
			rm -rf ${D}/etc/rc.d
			exeinto /etc/rc.d/init.d
			doexe ${FILESDIR}/${KV}/pcmcia
		fi	    
	else
		dodir /usr/src
		cd ${S}
		#make mrproper

		if [ "`use build`" ] ; then
			dodir /usr/src/linux-${KV}
			#grab includes and documentation only
			echo ">>> Copying includes..."
			cp -ax ${S}/include ${D}/usr/src/linux-${KV}
		else
			echo ">>> Copying sources..."
			cp -ax ${S} ${D}/usr/src
		fi
	fi	
    if [ "$PN" != "linux-extras" ]
    then
		#don't overwrite existing .config if present
		cd ${D}/usr/src/linux-${KV}
		if [ -e .config ]
		then
			cp -a .config .config.eg
		fi
	fi
}

pkg_postinst() {
    rm -f ${ROOT}/usr/src/linux
    ln -sf linux-${KV} ${ROOT}/usr/src/linux
    
    #copy over our .config if one isn't already present
    cd ${ROOT}/usr/src/linux-${KV}
    if [ "${PN}" = "linux-sources" ] && [ -e .config.eg ] && [ ! -e .config ]
    then
		cp -a .config.eg .config
    fi
}