#!/bin/bash

compile_kernel_args()
{
	local ARGS

	ARGS=''
	if [ "${KERNEL_CROSS_COMPILE}" != '' ]
	then
		ARGS="${ARGS} CROSS_COMPILE=\"${KERNEL_CROSS_COMPILE}\""
	else
		if [ "${KERNEL_CC}" != '' ]
		then
			ARGS="CC=\"${KERNEL_CC}\""
		fi
		if [ "${KERNEL_LD}" != '' ]
		then
			ARGS="${ARGS} LD=\"${KERNEL_LD}\""
		fi
		if [ "${KERNEL_AS}" != '' ]
		then
			ARGS="${ARGS} AS=\"${KERNEL_AS}\""
		fi
	fi
	echo -n "${ARGS}"
}

compile_utils_args()
{
	local ARGS

	ARGS=''
	if [ "${UTILS_ARCH}" != '' ]
	then
		ARGS="ARCH=\"${UTILS_ARCH}\""
	fi
	if [ "${UTILS_CC}" != '' ]
	then
		ARGS="CC=\"${UTILS_CC}\""
	fi
	if [ "${UTILS_LD}" != '' ]
	then
		ARGS="${ARGS} LD=\"${UTILS_LD}\""
	fi
	if [ "${UTILS_AS}" != '' ]
	then
		ARGS="${ARGS} AS=\"${UTILS_AS}\""
	fi

	echo -n "${ARGS}"
}

export_utils_args()
{
	save_args
	if [ "${UTILS_ARCH}" != '' ]
	then
		export ARCH="${UTILS_ARCH}"
	fi
	if [ "${UTILS_CC}" != '' ]
	then
		export CC="${UTILS_CC}"
	fi
	if [ "${UTILS_LD}" != '' ]
	then
		export LD="${UTILS_LD}"
	fi
	if [ "${UTILS_AS}" != '' ]
	then
		export AS="${UTILS_AS}"
	fi
}

unset_utils_args()
{
	if [ "${UTILS_ARCH}" != '' ]
	then
		unset ARCH
	fi
	if [ "${UTILS_CC}" != '' ]
	then
		unset CC
	fi
	if [ "${UTILS_LD}" != '' ]
	then
		unset LD
	fi
	if [ "${UTILS_AS}" != '' ]
	then
		unset AS
	fi
	reset_args
}

export_kernel_args()
{
	if [ "${KERNEL_CC}" != '' ]
	then
		export CC="${KERNEL_CC}"
	fi
	if [ "${KERNEL_LD}" != '' ]
	then
		export LD="${KERNEL_LD}"
	fi
	if [ "${KERNEL_AS}" != '' ]
	then
		export AS="${KERNEL_AS}"
	fi
	if [ "${KERNEL_CROSS_COMPILE}" != '' ]
	then
		export CROSS_COMPILE="${KERNEL_CROSS_COMPILE}"
	fi
}

unset_kernel_args()
{
	if [ "${KERNEL_CC}" != '' ]
	then
		unset CC
	fi
	if [ "${KERNEL_LD}" != '' ]
	then
		unset LD
	fi
	if [ "${KERNEL_AS}" != '' ]
	then
		unset AS
	fi
	if [ "${KERNEL_CROSS_COMPILE}" != '' ]
	then
		unset CROSS_COMPILE
	fi
}
save_args()
{
	if [ "${ARCH}" != '' ]
	then
		export ORIG_ARCH="${ARCH}"
	fi
	if [ "${CC}" != '' ]
	then
		export ORIG_CC="${CC}"
	fi
	if [ "${LD}" != '' ]
	then
		export ORIG_LD="${LD}"
	fi
	if [ "${AS}" != '' ]
	then
		export ORIG_AS="${AS}"
	fi
	if [ "${CROSS_COMPILE}" != '' ]
	then
		export ORIG_CROSS_COMPILE="${CROSS_COMPILE}"
	fi
}
reset_args()
{
	if [ "${ORIG_ARCH}" != '' ]
	then
		export ARCH="${ORIG_ARCH}"
		unset ORIG_ARCH
	fi
	if [ "${ORIG_CC}" != '' ]
	then
		export CC="${ORIG_CC}"
		unset ORIG_CC
	fi
	if [ "${ORIG_LD}" != '' ]
	then
		export LD="${ORIG_LD}"
		unset ORIG_LD
	fi
	if [ "${ORIG_AS}" != '' ]
	then
		export AS="${ORIG_AS}"
		unset ORIG_AS
	fi
	if [ "${ORIG_CROSS_COMPILE}" != '' ]
	then
		export CROSS_COMPILE="${ORIG_CROSS_COMPILE}"
		unset ORIG_CROSS_COMPILE
	fi
}


compile_generic() {
	local RET
	[ "$#" -lt '2' ] &&
		gen_die 'compile_generic(): improper usage!'
	local target=${1}
	local argstype=${2}

	if [ "${argstype}" = 'kernel' ] || [ "${argstype}" = 'runtask' ]
	then
		export_kernel_args
		MAKE=${KERNEL_MAKE}
	elif [ "${2}" = 'utils' ]
	then
		export_utils_args
		MAKE=${UTILS_MAKE}
	fi
	case "${argstype}" in
		kernel) ARGS="`compile_kernel_args`" ;;
		utils) ARGS="`compile_utils_args`" ;;
		*) ARGS="" ;; # includes runtask
	esac
	shift 2


	# the eval usage is needed in the next set of code
	# as ARGS can contain spaces and quotes, eg:
	# ARGS='CC="ccache gcc"'
	if [ "${argstype}" == 'runtask' ]
	then
		print_info 2 "COMMAND: ${MAKE} ${MAKEOPTS/-j?/j1} ${ARGS} ${target} $*" 1 0 1
		eval ${MAKE} -s ${MAKEOPTS/-j?/-j1} "${ARGS}" ${target} $*
		RET=$?
	elif [ "${DEBUGLEVEL}" -gt "1" ]
	then
		# Output to stdout and debugfile
		print_info 2 "COMMAND: ${MAKE} ${MAKEOPTS} ${ARGS} ${target} $*" 1 0 1
		eval ${MAKE} ${MAKEOPTS} ${ARGS} ${target} $* 2>&1 | tee -a ${DEBUGFILE}
		RET=${PIPESTATUS[0]}
	else
		# Output to debugfile only
		print_info 2 "COMMAND: ${MAKE} ${MAKEOPTS} ${ARGS} ${1} $*" 1 0 1
		eval ${MAKE} ${MAKEOPTS} ${ARGS} ${target} $* >> ${DEBUGFILE} 2>&1
		RET=$?
	fi
	[ "${RET}" -ne '0' ] &&
		gen_die "Failed to compile the \"${target}\" target..."

	unset MAKE
	unset ARGS
	if [ "${argstype}" = 'kernel' ]
	then
		unset_kernel_args
	elif [ "${argstype}" = 'utils' ]
	then
		unset_utils_args
	fi
}

extract_dietlibc_bincache() {
	cd "${TEMP}"
	rm -rf "${TEMP}/diet" > /dev/null
	/bin/tar -jxpf "${DIETLIBC_BINCACHE}" ||
		gen_die 'Could not extract dietlibc bincache!'
	[ ! -d "${TEMP}/diet" ] &&
		gen_die "${TEMP}/diet directory not found!"
	cd - > /dev/null
}

clean_dietlibc_bincache() {
	cd "${TEMP}"
	rm -rf "${TEMP}/diet" > /dev/null
	cd - > /dev/null
}

compile_dep() {
	# Only run ``make dep'' for 2.4 kernels
	if [ "${VER}" -eq '2' -a "${KERN_24}" -eq '1' ]
	then
		print_info 1 "kernel: >> Making dependencies..."
		cd ${KERNEL_DIR}
		compile_generic dep kernel
	fi
}

compile_modules() {
	print_info 1 "        >> Compiling ${KV} modules..."
	cd ${KERNEL_DIR}
	compile_generic modules kernel
	export UNAME_MACHINE="${ARCH}"
	# On 2.4 kernels, if MAKEOPTS > -j1 it can cause failures
	if [ "${VER}" -eq '2' -a "${KERN_24}" -eq '1' ]
	then
		MAKEOPTS_SAVE="${MAKEOPTS}"
		MAKEOPTS="${MAKEOPTS_SAVE/-j?/-j1}"
	fi
	[ "${INSTALL_MOD_PATH}" != '' ] && export INSTALL_MOD_PATH
	compile_generic "modules_install" kernel
	[ "${VER}" -eq '2' -a "${KERN_24}" -eq '1' ] && MAKEOPTS="${MAKEOPTS_SAVE}"
	export MAKEOPTS
	unset UNAME_MACHINE
}

compile_kernel() {
	[ "${KERNEL_MAKE}" = '' ] &&
		gen_die "KERNEL_MAKE undefined - I don't know how to compile a kernel for this arch!"
	cd ${KERNEL_DIR}
	print_info 1 "        >> Compiling ${KV} ${KERNEL_MAKE_DIRECTIVE/_install/ [ install ]/}..."
	compile_generic "${KERNEL_MAKE_DIRECTIVE}" kernel
	if [ "${KERNEL_MAKE_DIRECTIVE_2}" != '' ]
	then
		print_info 1 "        >> Starting supplimental compile of ${KV}: ${KERNEL_MAKE_DIRECTIVE_2}..."
		compile_generic "${KERNEL_MAKE_DIRECTIVE_2}" kernel
	fi
	if ! isTrue "${CMD_NOINSTALL}"
	then
		copy_image_with_preserve "kernel" \
			"${KERNEL_BINARY}" \
			"kernel-${KNAME}-${ARCH}-${KV}"

		copy_image_with_preserve "System.map" \
			"System.map" \
			"System.map-${KNAME}-${ARCH}-${KV}"

		if [ "${KERNEL_BINARY_2}" != '' -a "${GENERATE_Z_IMAGE}" = '1' ]
		then
			copy_image_with_preserve "kernelz" \
				"${KERNEL_BINARY_2}" \
				"kernelz-${KV}"
		fi
	else
		cp "${KERNEL_BINARY}" "${TMPDIR}/kernel-${KNAME}-${ARCH}-${KV}" ||
			gen_die "Could not copy the kernel binary to ${TMPDIR}!"
		cp "System.map" "${TMPDIR}/System.map-${KNAME}-${ARCH}-${KV}" ||
			gen_die "Could not copy System.map to ${TMPDIR}!"
		if [ "${KERNEL_BINARY_2}" != '' -a "${GENERATE_Z_IMAGE}" = '1' ]
		then
			cp "${KERNEL_BINARY_2}" "${TMPDIR}/kernelz-${KV}" ||
				gen_die "Could not copy the kernelz binary to ${TMPDIR}!"
		fi
	fi
}

compile_unionfs_modules() {
	if [ ! -f "${UNIONFS_MODULES_BINCACHE}" ]
	then
		[ -f "${UNIONFS_SRCTAR}" ] ||
			gen_die "Could not find unionfs source tarball: ${UNIONFS_SRCTAR}!"
		cd "${TEMP}"
		rm -rf ${UNIONFS_DIR} > /dev/null
		rm -rf unionfs* > /dev/null
		mkdir unionfs
		/bin/tar xzpf ${UNIONFS_SRCTAR} ||
			gen_die 'Could not extract unionfs source tarball!'
		[ -d "${UNIONFS_DIR}" ] ||
			gen_die 'Unionfs directory ${UNIONFS_DIR} is invalid!'
		cd "${UNIONFS_DIR}"
		print_info 1 'unionfs modules: >> Compiling...'
		echo "LINUXSRC=${KERNEL_DIR}" >> fistdev.mk
		echo 'TOPINC=-I$(LINUXSRC)/include' >> fistdev.mk
		echo "MODDIR= /lib/modules/${KV}" >> fistdev.mk
		echo "KVERS=${KV}" >> fistdev.mk
		echo "KERNELVERSION=${KV}" >> fistdev.mk
		# Fix for hardened/selinux systems to have extened attributes
		# per r2d2's request.  Also add -DUNIONFS_UNSUPPORTED for 2.6.16
		echo "EXTRACFLAGS=-DUNIONFS_XATTR -DFIST_SETXATTR_CONSTVOID -DUNIONFS_UNSUPPORTED" \
			>> fistdev.mk
		# Here we do something really nasty and disable debugging, along with
		# change our default CFLAGS
		echo "UNIONFS_DEBUG_CFLAG=-DUNIONFS_NDEBUG" >> fistdev.mk
		echo "UNIONFS_OPT_CFLAG= -O2 -pipe" >> fistdev.mk

		if [ "${PAT}" -ge '6' ]
		then
			# ARCH is used by unionfs - and conflicts with genkernel
			ARCH_PUSH=${ARCH}
			unset ARCH
			# Compile unionfs module within the unionfs
			# environment not within the kernelsrc dir
			make unionfs.ko || gen_die 'failed to compile unionfs'
			ARCH=${ARCH_PUSH}
		else
			gen_die 'unionfs is only supported on 2.6 targets'
		fi
		print_info 1 'unionfs: >> Copying to cache...'
	
		mkdir -p ${TEMP}/unionfs/lib/modules/${KV}/kernel/fs/unionfs
		
		if [ -f unionfs.ko ]
		then 
			cp -f unionfs.ko ${TEMP}/unionfs/lib/modules/${KV}/kernel/fs/unionfs
		else
			cp -f unionfs.o ${TEMP}/unionfs/lib/modules/${KV}/kernel/fs/unionfs
 		fi
	
		cd ${TEMP}/unionfs
		/bin/tar -cjf "${UNIONFS_MODULES_BINCACHE}" . ||
			gen_die 'Could not create unionfs modules binary cache'
	
		cd "${TEMP}"
		rm -rf "${UNIONFS_DIR}" > /dev/null
		rm -rf unionfs > /dev/null
	fi
}

compile_unionfs_utils() {
	if [ ! -f "${UNIONFS_BINCACHE}" ]
	then
		[ -f "${UNIONFS_SRCTAR}" ] ||
			gen_die "Could not find unionfs source tarball: ${UNIONFS_SRCTAR}!"
		cd "${TEMP}"
		rm -rf ${UNIONFS_DIR} > /dev/null
		rm -rf unionfs* > /dev/null
		mkdir -p unionfs/sbin
		/bin/tar -zxpf ${UNIONFS_SRCTAR} ||
			gen_die 'Could not extract unionfs source tarball!'
		[ -d "${UNIONFS_DIR}" ] ||
			gen_die 'Unionfs directory ${UNIONFS_DIR} is invalid!'
		cd "${UNIONFS_DIR}"
		print_info 1 'unionfs tools: >> Compiling...'
		sed -i utils/Makefile -e 's|${CC} -o|${CC} -static -o|g'
		sed -i Makefile -e 's|${CC} -o|${CC} -static -o|g'
		compile_generic utils utils

		if [ ! -e "uniondbg" ]; then
			cd utils
		fi
		print_info 1 'unionfs: >> Copying to cache...'
		strip uniondbg unionctl
		cp uniondbg ${TEMP}/unionfs/sbin/ || 
			gen_die 'Could not copy the uniondbg binary to the tmp directory'
		cp unionctl ${TEMP}/unionfs/sbin/ ||
			gen_die 'Could not copy the unionctl binary to the tmp directory'
		cd ${TEMP}/unionfs
		/bin/tar -cjf "${UNIONFS_BINCACHE}" . ||
			gen_die 'Could not create unionfs tools binary cache'
		
		cd "${TEMP}"
		rm -rf "${UNIONFS_DIR}" > /dev/null
		rm -rf unionfs > /dev/null
	fi
}

compile_busybox() {
	[ -f "${BUSYBOX_SRCTAR}" ] ||
		gen_die "Could not find busybox source tarball: ${BUSYBOX_SRCTAR}!"
	[ -f "${BUSYBOX_CONFIG}" ] ||
		gen_die "Cound not find busybox config file: ${BUSYBOX_CONFIG}!"
	cd "${TEMP}"
	rm -rf "${BUSYBOX_DIR}" > /dev/null
	/bin/tar -jxpf ${BUSYBOX_SRCTAR} ||
		gen_die 'Could not extract busybox source tarball!'
	[ -d "${BUSYBOX_DIR}" ] ||
		gen_die 'Busybox directory ${BUSYBOX_DIR} is invalid!'
	cp "${BUSYBOX_CONFIG}" "${BUSYBOX_DIR}/.config"
	sed -i ${BUSYBOX_DIR}/.config -e 's/#\? \?CONFIG_FEATURE_INSTALLER[ =].*/CONFIG_FEATURE_INSTALLER=y/g'
	cd "${BUSYBOX_DIR}"
	print_info 1 'busybox: >> Configuring...'
	yes '' 2>/dev/null | compile_generic oldconfig utils

	# Delete cache if stored config's MD5 does not match one to be used
	if [ -f "${BUSYBOX_BINCACHE}" -a -f "${BUSYBOX_CONFIG}" ]
	then
		oldconfig_md5=$(tar -xjf "${BUSYBOX_BINCACHE}" -O .config | md5sum)
		newconfig_md5=$(md5sum < .config)
		if [ "${oldconfig_md5}" != "${newconfig_md5}" ]
		then
			print_info 1 "busybox: >> Removing stale cache..."
			rm -rf "${BUSYBOX_BINCACHE}"
		else
			print_info 1 "busybox: >> Using cache"
		fi
	fi

	if [ ! -f "${BUSYBOX_BINCACHE}" ]
	then
		print_info 1 'busybox: >> Compiling...'
		compile_generic all utils
		print_info 1 'busybox: >> Copying to cache...'
		[ -f "${TEMP}/${BUSYBOX_DIR}/busybox" ] ||
			gen_die 'Busybox executable does not exist!'
		strip "${TEMP}/${BUSYBOX_DIR}/busybox" ||
			gen_die 'Could not strip busybox binary!'
		tar -cj -C "${TEMP}/${BUSYBOX_DIR}" -f "${BUSYBOX_BINCACHE}" busybox .config ||
			gen_die 'Could not create the busybox bincache!'
	fi

	cd "${TEMP}"
	rm -rf "${BUSYBOX_DIR}" > /dev/null
}

compile_lvm() {
	compile_device_mapper
	if [ ! -f "${LVM_BINCACHE}" ]
	then
		[ -f "${LVM_SRCTAR}" ] ||
			gen_die "Could not find LVM source tarball: ${LVM_SRCTAR}! Please place it there, or place another version, changing /etc/genkernel.conf as necessary!"
		cd "${TEMP}"
		rm -rf ${LVM_DIR} > /dev/null
		/bin/tar -zxpf ${LVM_SRCTAR} ||
			gen_die 'Could not extract LVM source tarball!'
		[ -d "${LVM_DIR}" ] ||
			gen_die 'LVM directory ${LVM_DIR} is invalid!'
		rm -rf "${TEMP}/device-mapper" > /dev/null
		/bin/tar -jxpf "${DEVICE_MAPPER_BINCACHE}" -C "${TEMP}" ||
			gen_die "Could not extract device-mapper binary cache!";
		
		cd "${LVM_DIR}"
		print_info 1 'lvm: >> Configuring...'
			LDFLAGS="-L${TEMP}/device-mapper/lib" \
			CFLAGS="-I${TEMP}/device-mapper/include" \
			CPPFLAGS="-I${TEMP}/device-mapper/include" \
			./configure --enable-static_link --prefix=${TEMP}/lvm >> ${DEBUGFILE} 2>&1 ||
				gen_die 'Configure of lvm failed!'
		print_info 1 'lvm: >> Compiling...'
			compile_generic '' utils
			compile_generic 'install' utils

		cd "${TEMP}/lvm"
		print_info 1 '      >> Copying to bincache...'
		strip "sbin/lvm.static" ||
			gen_die 'Could not strip lvm.static!'
		/bin/tar -cjf "${LVM_BINCACHE}" sbin/lvm.static ||
			gen_die 'Could not create binary cache'

		cd "${TEMP}"
		rm -rf "${TEMP}/device-mapper" > /dev/null
		rm -rf "${LVM_DIR}" lvm
	fi
}

compile_dmraid() {
	compile_device_mapper
	if [ ! -f "${DMRAID_BINCACHE}" ]
	then
		[ -f "${DMRAID_SRCTAR}" ] ||
			gen_die "Could not find DMRAID source tarball: ${DMRAID_SRCTAR}! Please place it there, or place another version, changing /etc/genkernel.conf as necessary!"
		cd "${TEMP}"
		rm -rf ${DMRAID_DIR} > /dev/null
		/bin/tar -jxpf ${DMRAID_SRCTAR} ||
			gen_die 'Could not extract DMRAID source tarball!'
		[ -d "${DMRAID_DIR}" ] ||
			gen_die 'DMRAID directory ${DMRAID_DIR} is invalid!'
		rm -rf "${TEMP}/device-mapper" > /dev/null
		/bin/tar -jxpf "${DEVICE_MAPPER_BINCACHE}" -C "${TEMP}" ||
			gen_die "Could not extract device-mapper binary cache!";
		
		cd "${DMRAID_DIR}"
		print_info 1 'dmraid: >> Configuring...'
		
			LDFLAGS="-L${TEMP}/device-mapper/lib" \
			CFLAGS="-I${TEMP}/device-mapper/include" \
			CPPFLAGS="-I${TEMP}/device-mapper/include" \
			./configure --enable-static_link --prefix=${TEMP}/dmraid >> ${DEBUGFILE} 2>&1 ||
				gen_die 'Configure of dmraid failed!'
				
			# We dont necessarily have selinux installed yet... look into
			# selinux global support in the future.
			sed -i tools/Makefile -e "s|DMRAIDLIBS += -lselinux||g"
			###echo "DMRAIDLIBS += -lselinux -lsepol" >> tools/Makefile
		mkdir -p "${TEMP}/dmraid"
		print_info 1 'dmraid: >> Compiling...'
			compile_generic '' utils
			#compile_generic 'install' utils
			mkdir ${TEMP}/dmraid/sbin
			install -m 0755 -s tools/dmraid "${TEMP}/dmraid/sbin/dmraid"
		print_info 1 '      >> Copying to bincache...'
		cd "${TEMP}/dmraid"
		/bin/tar -cjf "${DMRAID_BINCACHE}" sbin/dmraid ||
			gen_die 'Could not create binary cache'

		cd "${TEMP}"
		rm -rf "${TEMP}/device-mapper" > /dev/null
		rm -rf "${DMRAID_DIR}" dmraid
	fi
}

compile_devfsd() {
	local ARGS
	if [ ! -f "${DEVFSD_BINCACHE}" ]
	then
		[ ! -f "${DEVFSD_SRCTAR}" ] &&
			gen_die "Could not find devfsd source tarball: ${DEVFSD_SRCTAR}"
		cd "${TEMP}"
		rm -rf "${DEVFSD_DIR}"
		/bin/tar -jxpf "${DEVFSD_SRCTAR}"
		[ ! -d "${DEVFSD_DIR}" ] &&
			gen_die "Devfsd directory ${DEVFSD_DIR} invalid"
		cd "${DEVFSD_DIR}"

		print_info 1 'devfsd: >> Compiling...'
		compile_generic 'LDFLAGS=-static' utils

		print_info 1 '        >> Copying to cache...'
		[ -f "${TEMP}/${DEVFSD_DIR}/devfsd" ] || gen_die 'The devfsd executable does not exist after the compilation of devfsd!'
		strip "${TEMP}/${DEVFSD_DIR}/devfsd" || gen_die 'Could not strip devfsd!'
		bzip2 "${TEMP}/${DEVFSD_DIR}/devfsd" || gen_die 'Compression of devfsd failed!'
		[ -f "${TEMP}/${DEVFSD_DIR}/devfsd.bz2" ] || gen_die 'Could not find compressed devfsd.bz2 binary!'
		mv "${TEMP}/${DEVFSD_DIR}/devfsd.bz2" "${DEVFSD_BINCACHE}" || gen_die 'Could not move compressed binary to the package cache!'

		cd "${TEMP}"
		rm -rf "${DEVFSD_DIR}" > /dev/null
	fi
}

compile_device_mapper() {
	if [ ! -f "${DEVICE_MAPPER_BINCACHE}" ]
	then
		[ ! -f "${DEVICE_MAPPER_SRCTAR}" ] &&
			gen_die "Could not find device-mapper source tarball: ${DEVICE_MAPPER_SRCTAR}. Please place it there, or place another version, changing /etc/genkernel.conf as necessary!"
		cd "${TEMP}"
		rm -rf "${DEVICE_MAPPER_DIR}"
		/bin/tar -zxpf "${DEVICE_MAPPER_SRCTAR}"
		[ ! -d "${DEVICE_MAPPER_DIR}" ] &&
			gen_die "device-mapper directory ${DEVICE_MAPPER_DIR} invalid"
		cd "${DEVICE_MAPPER_DIR}"
		./configure --prefix=${TEMP}/device-mapper --enable-static_link \
			--disable-selinux >> ${DEBUGFILE} 2>&1 ||
			gen_die 'Configuring device-mapper failed!'
		print_info 1 'device-mapper: >> Compiling...'
		compile_generic '' utils
		compile_generic 'install' utils
		print_info 1 '        >> Copying to cache...'
		cd "${TEMP}"
		rm -r "${TEMP}/device-mapper/man" ||
			gen_die 'Could not remove manual pages!'
		strip "${TEMP}/device-mapper/sbin/dmsetup" ||
			gen_die 'Could not strip dmsetup binary!'
		/bin/tar -jcpf "${DEVICE_MAPPER_BINCACHE}" device-mapper ||
			gen_die 'Could not tar up the device-mapper binary!'
		[ -f "${DEVICE_MAPPER_BINCACHE}" ] ||
			gen_die 'device-mapper cache not created!'
		cd "${TEMP}"
		rm -rf "${DEVICE_MAPPER_DIR}" > /dev/null
		rm -rf "${TEMP}/device-mapper" > /dev/null
	fi
}

compile_e2fsprogs() {
	if [ ! -f "${BLKID_BINCACHE}" ]
	then
		[ ! -f "${E2FSPROGS_SRCTAR}" ] &&
			gen_die "Could not find e2fsprogs source tarball: ${E2FSPROGS_SRCTAR}. Please place it there, or place another version, changing /etc/genkernel.conf as necessary!"
		cd "${TEMP}"
		rm -rf "${E2FSPROGS_DIR}"
		tar -zxpf "${E2FSPROGS_SRCTAR}"
		[ ! -d "${E2FSPROGS_DIR}" ] &&
			gen_die "e2fsprogs directory ${E2FSPROGS_DIR} invalid"
		cd "${E2FSPROGS_DIR}"
		print_info 1 'e2fsprogs: >> Configuring...'
		./configure  --with-ldopts=-static >> ${DEBUGFILE} 2>&1 ||
			gen_die 'Configuring e2fsprogs failed!'
		print_info 1 'e2fsprogs: >> Compiling...'
		MAKE=${UTILS_MAKE} compile_generic "" ""
		print_info 1 'blkid: >> Copying to cache...'
		[ -f "${TEMP}/${E2FSPROGS_DIR}/misc/blkid" ] ||
			gen_die 'Blkid executable does not exist!'
		strip "${TEMP}/${E2FSPROGS_DIR}/misc/blkid" ||
			gen_die 'Could not strip blkid binary!'
		bzip2 "${TEMP}/${E2FSPROGS_DIR}/misc/blkid" ||
			gen_die 'bzip2 compression of blkid failed!'
		mv "${TEMP}/${E2FSPROGS_DIR}/misc/blkid.bz2" "${BLKID_BINCACHE}" ||
			gen_die 'Could not copy the blkid binary to the package directory, does the directory exist?'

		cd "${TEMP}"
		rm -rf "${E2FSPROGS_DIR}" > /dev/null
	fi
}