#!/bin/bash -e
#
#©K. D. Hedger. Wed  3 Mar 14:36:07 GMT 2021 keithdhedger@gmail.com
#
#This file (BuildTools1) is part of LFSPkgBuilds.
#
#LFSPkgBuilds is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#at your option) any later version.
#
#LFSPkgBuilds is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.
#
#You should have received a copy of the GNU General Public License
#along with LFSPkgBuilds.  If not, see <http://www.gnu.org/licenses/>.
#
#Version 12.0

#Sanitize env

[ ! -e /etc/bash.bashrc ] || sudo -p "Enter admin PW to move /etc/bash.bashrc aside : " mv -v /etc/bash.bashrc /etc/bash.bashrc.NOUSE
[ "$HOME" != "" ] && exec -c /usr/bin/env -i USER=$USER TERM="$TERM" $0

RED='\e[1;31m'
GREEN='\e[1;32m'
NORMAL='\e[0;0m'

trap 'echo -e "$0 ${RED}FAILED${NORMAL} at line ${GREEN}${LINENO}${NORMAL}"' ERR

if [ -e ./SystemData ];then
	. ./SystemData
else
	echo "No SystemData file found ..."
	exit 100
fi

mkdir -vp "${LFS}${SOURCEARCHIVES}" "$LFS/${PKGARCHIVES}"|| true

if ! mountpoint $LFS/${PKGARCHIVES} && ! mountpoint $LFS/${SOURCEARCHIVES} ;then
	if [ "X$EXTFOLDER" != "X" ];then
		sudo -p "Enter admin PW to bind $EXTFOLDER to $LFS/${PKGARCHIVES}: " mount --bind $EXTFOLDER/${PKGARCHIVES} $LFS/${PKGARCHIVES}
		sudo -p "Enter admin PW to bind $EXTFOLDER $LFS/${SOURCEARCHIVES}: " mount --bind $EXTFOLDER/${SOURCEARCHIVES} $LFS/${SOURCEARCHIVES}
	fi
fi

SYSTEMSOURCE="${LFS}${SOURCEARCHIVES}/SYSTEM"
NETSOURCE="${LFS}${SOURCEARCHIVES}/NET"
mkdir -vp "$SYSTEMSOURCE" "$NETSOURCE"|| true

mkdir -pv $LFS/{bin,etc,lib${LIBDIRSUFFIX},sbin,usr,var,tmp,usr/lib${LIBDIRSUFFIX},usr/bin,usr/sbin}
case $(uname -m) in
  x86_64)
 	ln -sfnv lib${LIBDIRSUFFIX} $LFS/lib||true
  	ln -sfnv lib${LIBDIRSUFFIX} $LFS/usr/lib||true
  	;;
esac

#mkdir -pv $LFS/{bin,etc,lib${LIBDIRSUFFIX},sbin,usr,var,tmp,usr/lib${LIBDIRSUFFIX}}
case $(uname -m) in
  x86_64)
 	ln -sfnv lib${LIBDIRSUFFIX} $LFS/lib
  	ln -sfnv lib${LIBDIRSUFFIX} $LFS/usr/lib
  	;;
esac

mkdir -pv $LFS/tools

sudo -p "Enter admin PW to set ownership of $LFS/*: " chown -v $USER $LFS/{usr,lib${LIBDIRSUFFIX},var,etc,bin,sbin,tools,tmp,usr/lib${LIBDIRSUFFIX}}


cp ./SystemData* $SYSTEMSOURCE
WGET_version=1.21.4

WGETTAR="https://ftp.gnu.org/gnu/wget/wget-$WGET_version.tar.gz"

set +h
umask 022
LC_ALL=POSIX
case $(uname -m) in
	armv*)
		LFS_TGT=$(uname -m)-lfs-linux-gnueabihf
		;;
	*)
		LFS_TGT=$(uname -m)-lfs-linux-gnu
		;;
esac
PATH=/usr/bin
if [ ! -L /bin ];then
	PATH=/bin:$PATH
fi
PATH=$LFS/tools/bin:$PATH
CONFIG_SITE=$LFS/usr/share/config.site
MAKEFLAGS="-j$(($(nproc)-1))"
SYSTEMCONFIGOPTIONS="--prefix=/usr --sysconfdir=/etc --libexecdir=/usr/libexec --libdir=/usr/lib${LIBDIRSUFFIX} --bindir=/bin --sbindir=/sbin --disable-nls --disable-static"
USRCONFIGOPTIONS="-prefix=/usr --sysconfdir=/etc --libexecdir=/usr/libexec --libdir=/usr/lib${LIBDIRSUFFIX} --disable-nls --disable-static"

export LFS LC_ALL LFS_TGT PATH CONFIG_SITE

echo $PATH $LFS $LC_ALL $LFS_TGT $CONFIG_SITE

if [ ! -e "${SYSTEMSOURCE}/gotsystem" ];then
	if [ "$USESYSTEMD" -eq 1 ];then
		wget --no-check-certificate http://www.linuxfromscratch.org/lfs/view/systemd/wget-list
		wget --no-check-certificate http://www.linuxfromscratch.org/lfs/view/systemd/md5sums
		./GetVersions
	else
		wget --no-check-certificate https://www.linuxfromscratch.org/lfs/view/$LFSVERSION/wget-list-sysv
		wget --no-check-certificate http://www.linuxfromscratch.org/lfs/view/$LFSVERSION/md5sums
		./GetVersions
	fi
	mv md5sums $SYSTEMSOURCE
	wget --no-check-certificate -i wget-list --no-check-certificate  -c -P $SYSTEMSOURCE||true

#wget from the blfs book I prefer to make this as part of the main system
	wget --no-check-certificate -c "$WGETTAR" -P $NETSOURCE
fi

if [ -e ./PkgVersions ];then
	. ./PkgVersions
else
	echo "No PkgVersions file found ..."
	exit 100
fi

cd "$SYSTEMSOURCE"
if [ ! -e ${SYSTEMSOURCE}/gotsystem ];then
	if ! md5sum -c md5sums;then
		echo "Files don't match ..."
		exit 1
	else
		echo "All files check ..."
		touch "${SYSTEMSOURCE}/gotsystem"
	fi

	if [ "$PIBUILD" -eq 1 ];then
		wget --continue https://intestinate.com/pilfs/scripts/pilfs-bootscripts-20190902.tar.xz
		wget --continue https://github.com/raspberrypi/linux/archive/rpi-5.10.y.tar.gz
		wget --continue https://github.com/raspberrypi/firmware/archive/master.tar.gz -O firmware-master-5.10.tar.gz
		wget --no-check-certificate -c https://github.com/RPi-Distro/firmware-nonfree/archive/master.tar.gz -O firmware-RPI-blobs.tar.gz
		wget --continue https://github.com/raspberrypi/rpi-eeprom/archive/v2020.09.03-138a1.tar.gz
		wget --continue https://intestinate.com/pilfs/patches/gcc-9.1.0-rpi1-cpu-default.patch
		wget --continue https://intestinate.com/pilfs/patches/gcc-9.1.0-rpi2-cpu-default.patch
		wget --continue https://intestinate.com/pilfs/patches/gcc-9.1.0-rpi3-cpu-default.patch
		wget --continue https://intestinate.com/pilfs/patches/gcc-9.1.0-rpi4-cpu-default.patch
	fi
fi

TOOLNUM=$(cat ${SYSTEMSOURCE}/toolnum 2>/dev/null||true)

if [ "X$TOOLNUM" = "X" ];then
	TOOLNUM=1
	echo $TOOLNUM > ${SYSTEMSOURCE}/toolnum
fi

while [ $TOOLNUM != "DONE" ]
do
	cd "$SYSTEMSOURCE"
	case $TOOLNUM in
		1)
			NAME=binutils
			VERSION=$binutils_version
			tar -xvf ${NAME}-${VERSION}.$binutils_arctype
			pushd ${NAME}-${VERSION}
				rm -rf build
				mkdir -vp build
				cd build
				#../configure --prefix=$LFS/tools --with-sysroot=$LFS --target=$LFS_TGT --disable-nls --enable-gprofng=no --disable-werror
				../configure --prefix=$LFS/tools --with-sysroot=$LFS --target=$LFS_TGT --disable-nls --enable-gprofng=no --disable-werror
				make $MAKEFLAGS||make
				make install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		2)
			#pass 1
			NAME=gcc
			VERSION=$gcc_version
			tar -xvf ${NAME}-${VERSION}.$gcc_arctype
			pushd ${NAME}-${VERSION}
				tar -Jxf ../mpfr-${mpfr_version}.$mpfr_arctype
				mv -v mpfr-$mpfr_version mpfr
				tar -Jxf ../gmp-${gmp_version}.$gmp_arctype
				mv -v gmp-$gmp_version gmp
				tar -zxf ../mpc-${mpc_version}.$mpc_arctype
				mv -v mpc-$mpc_version mpc
	
				case $(uname -m) in
					armv*)
						patch -Np1 -i ../gcc-9.1.0-rpi$PIVERS-cpu-default.patch
						;;
					*)
						sed -e '/m64=/s/lib64/lib/' -i.orig gcc/config/i386/t-linux64
						;;
				esac

				rm -rf build
				mkdir -vp build
				cd build
				../configure --target=$LFS_TGT --prefix=$LFS/tools --with-glibc-version=2.38 --with-sysroot=$LFS --with-newlib --without-headers --enable-default-pie  --enable-default-ssp --disable-nls --disable-shared --disable-multilib --disable-threads --disable-libatomic --disable-libgomp --disable-libquadmath --disable-libssp --disable-libvtv --disable-libstdcxx --enable-languages=c,c++
				make $MAKEFLAGS||make -j1
				make install
				cd ..
				cat gcc/limitx.h gcc/glimits.h gcc/limity.h > $(dirname $($LFS_TGT-gcc -print-libgcc-file-name))/include/limits.h
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		3)
			NAME=linux
			VERSION=$linux_version
			tar -xvf ${NAME}-${VERSION}.$linux_arctype
			pushd ${NAME}-${VERSION}
				make mrproper
				make headers
				find usr/include -type f ! -name '*.h' -delete
				cp -rv usr/include $LFS/usr
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		4)
			NAME=glibc
			VERSION=$glibc_version
			tar -xvf ${NAME}-${VERSION}.$glibc_arctype
			pushd ${NAME}-${VERSION}
				case $(uname -m) in
					i?86)
						ln -sfv ld-linux.so.2 $LFS/lib/ld-lsb.so.3
						;;
					x86_64)
						ln -sfv ld-linux-x86-64.so.2 $LFS/lib${LIBDIRSUFFIX}/ld-lsb-x86-64.so.3
					;;
				esac
				patch -Np1 -i ../${NAME}-${VERSION}-fhs-1.patch
				rm -rf build||true
				mkdir -vp build
				cd build
				echo "rootsbindir=/usr/sbin" > configparms
#				../configure --prefix=/usr --host=$LFS_TGT --build=$(../scripts/config.guess) --enable-kernel=4.14 --with-headers=$LFS/usr/include libc_cv_slibdir=/usr/lib
				../configure $SYSTEMCONFIGOPTIONS --host=$LFS_TGT --build=$(../scripts/config.guess) --enable-kernel=4.14 --with-headers=$LFS/usr/include libc_cv_slibdir=/lib
				make $MAKEFLAGS||make -j1|| exit 100
				make DESTDIR=$LFS install
				sed '/RTLDLIST=/s@/usr@@g' -i $LFS/bin/ldd
			popd
			rm -rf ${NAME}-${VERSION}
			echo 'int main(){}' > dummy.c
			$LFS_TGT-gcc dummy.c
			readelf -l a.out | grep '/ld-linux'
			read -t 30 -p "check out " ||true
			rm -v dummy.c a.out
			#$LFS/tools/libexec/gcc/$LFS_TGT/$gcc_version/install-tools/mkheaders
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		5)
			#libstdc++
			NAME=gcc
			VERSION=$gcc_version
			tar -xvf ${NAME}-${VERSION}.$gcc_arctype
			pushd ${NAME}-${VERSION}
				rm -rf build
				mkdir -pv build
				cd build
				../libstdc++-v3/configure $SYSTEMCONFIGOPTIONS --host=$LFS_TGT --build=$(../config.guess) --disable-multilib --disable-libstdcxx-pch --with-gxx-include-dir=/tools/$LFS_TGT/include/c++/${VERSION}
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
				rm -v $LFS/usr/lib/lib{stdc++,stdc++fs,supc++}.la
				#rm -v $LFS/lib/lib{stdc++,stdc++fs,supc++}.la||exit 100
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		6)
			NAME=m4
			VERSION=$m4_version
			tar -xvf ${NAME}-${VERSION}.$m4_arctype
			pushd ${NAME}-${VERSION}
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(build-aux/config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		7)
			NAME=ncurses
			VERSION=$ncurses_version
			tar -xvf  ${NAME}-${VERSION}.$ncurses_arctype
			pushd  ${NAME}-${VERSION}
				sed -i s/mawk// configure
				rm -rf build||true
				mkdir build
				pushd build
					../configure
					make -C include
					make -C progs tic
				popd
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(./config.guess) --mandir=/usr/share/man --with-manpage-format=normal --with-shared --without-debug --without-ada --without-normal --enable-widec --with-cxx-shared --disable-stripping --enable-widec
				make $MAKEFLAGS||make
				make DESTDIR=$LFS TIC_PATH=$(pwd)/build/progs/tic install
				echo "INPUT(-lncursesw)" > $LFS/usr/lib/libncurses.so
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		8)
			NAME=bash
			VERSION=$bash_version
			tar -xvf ${NAME}-${VERSION}.$bash_arctype
			pushd ${NAME}-${VERSION}
				./configure  $SYSTEMCONFIGOPTIONS --build=$(sh support/config.guess) --host=$LFS_TGT --without-bash-malloc
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
				#mv $LFS/usr/bin/bash $LFS/bin/bash||exit 100
				ln -sfnv bash $LFS/bin/sh
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		9)
			NAME=coreutils
			VERSION=$coreutils_version
			tar -xvf ${NAME}-${VERSION}.$coreutils_arctype
			pushd ${NAME}-${VERSION}
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(build-aux/config.guess) --enable-install-program=hostname --enable-no-install-program=kill,uptime gl_cv_macro_MB_CUR_MAX_good=y
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
				mv -v $LFS/usr/bin/chroot $LFS/sbin
				mkdir -pv $LFS/usr/share/man/man8
				mv -v $LFS/usr/share/man/man1/chroot.1 $LFS/usr/share/man/man8/chroot.8
				sed -i 's/"1"/"8"/' $LFS/usr/share/man/man8/chroot.8
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		10)
			NAME=diffutils
			VERSION=$diffutils_version
			tar -xvf ${NAME}-${VERSION}.$diffutils_arctype
			pushd ${NAME}-${VERSION}
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(./build-aux/config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		11)
			NAME=file
			VERSION=$file_version
			tar -xvf ${NAME}-${VERSION}.$file_arctype
			pushd ${NAME}-${VERSION}
				rm -rf build||true
				mkdir build
				pushd build
					../configure --disable-bzlib --disable-libseccomp --disable-xzlib --disable-zlib
					make
				popd
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(./config.guess)
				make FILE_COMPILE=$(pwd)/build/src/file
				make DESTDIR=$LFS install
				rm -v $LFS/usr/lib/libmagic.la
				#hack
				if [ "$USESYSTEMD" -eq 1 ];then
					mv -v $LFS/usr/lib/libmagic.so.* $LFS/lib
					ln -sfv ../../lib/$(readlink /usr/lib/libmagic.so) $LFS/usr/lib/libmagic.so
				fi
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		12)
			NAME=findutils
			VERSION=$findutils_version
			tar -xvf ${NAME}-${VERSION}.$findutils_arctype
			pushd ${NAME}-${VERSION}
				./configure $USRCONFIGOPTIONS --localstatedir=/var/lib/locate --host=$LFS_TGT --build=$(build-aux/config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		13)
			NAME=gawk
			VERSION=$gawk_version
			tar -xvf ${NAME}-${VERSION}.$gawk_arctype
			pushd ${NAME}-${VERSION}
				sed -i 's/extras//' Makefile.in
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(./config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		14)
			NAME=grep
			VERSION=$grep_version
			tar -xvf ${NAME}-${VERSION}.$grep_arctype
			pushd ${NAME}-${VERSION}
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(./build-aux/config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		15)
			NAME=gzip
			VERSION=$gzip_version
			tar -xvf ${NAME}-${VERSION}.$gzip_arctype
			pushd ${NAME}-${VERSION}
				./configure $SYSTEMCONFIGOPTIONS --host=$LFS_TGT
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		16)
			NAME=make
			VERSION=$make_version
			tar -xvf ${NAME}-${VERSION}.$make_arctype
			pushd ${NAME}-${VERSION}
				#sed -e '/ifdef SIGPIPE/,+2 d' -e '/undef  FATAL_SIG/i FATAL_SIG (SIGPIPE);' -i src/main.c
				./configure $USRCONFIGOPTIONS --without-guile --host=$LFS_TGT --build=$(build-aux/config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		17)
			NAME=patch
			VERSION=$patch_version
			tar -xvf ${NAME}-${VERSION}.$patch_arctype
			pushd ${NAME}-${VERSION}
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT --build=$(build-aux/config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		18)
			NAME=sed
			VERSION=$sed_version
			tar -xvf ${NAME}-${VERSION}.$sed_arctype
			pushd ${NAME}-${VERSION}
				./configure $USRCONFIGOPTIONS --host=$LFS_TGT
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		19)
			NAME=tar
			VERSION=$tar_version
			tar -xvf ${NAME}-${VERSION}.$tar_arctype
			pushd ${NAME}-${VERSION}
				./configure $SYSTEMCONFIGOPTIONS --host=$LFS_TGT --build=$(build-aux/config.guess)
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		20)
			NAME=xz
			VERSION=$xz_version
			tar -xvf${NAME}-${VERSION}.$xz_arctype
			pushd ${NAME}-${VERSION}
				./configure $SYSTEMCONFIGOPTIONS --host=$LFS_TGT --build=$(build-aux/config.guess) --docdir=/usr/share/doc/xz-${VERSION}
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
				rm -v $LFS/usr/lib/liblzma.la
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		21)
			#pass 2
			NAME=binutils
			VERSION=$binutils_version
			tar -xvf ${NAME}-${VERSION}.$binutils_arctype
			pushd ${NAME}-${VERSION}
				sed '6009s/$add_dir//' -i ltmain.sh
				rm -rf build
				mkdir -v build
				cd build
				../configure $USRCONFIGOPTIONS --build=$(../config.guess) --host=$LFS_TGT --enable-shared --enable-gprofng=no --disable-werror --enable-64-bit-bfd
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
				rm -v $LFS/usr/lib/lib{bfd,ctf,ctf-nobfd,opcodes}.la
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		22)
			#pass 2
			NAME=gcc
			VERSION=$gcc_version
			tar -xvf ${NAME}-${VERSION}.$gcc_arctype
			pushd ${NAME}-${VERSION}
				case $(uname -m) in
					x86_64)
						sed -e '/m64=/s/lib64/lib/' -i.orig gcc/config/i386/t-linux64
						;;
				esac

				tar -xf ../mpfr-${mpfr_version}.$mpfr_arctype
				mv -v mpfr-$mpfr_version mpfr
				tar -xf ../gmp-${gmp_version}.$gmp_arctype
				mv -v gmp-$gmp_version gmp
				tar -xf ../mpc-${mpc_version}.$mpc_arctype
				mv -v mpc-$mpc_version mpc

				sed '/thread_header =/s/@.*@/gthr-posix.h/' -i libgcc/Makefile.in libstdc++-v3/include/Makefile.in
				rm -rf build
				mkdir -v build
				cd build
				mkdir -pv $LFS_TGT/libgcc
				ln -s ../../../libgcc/gthr-posix.h $LFS_TGT/libgcc/gthr-default.h
				../configure $USRCONFIGOPTIONS --build=$(../config.guess) --host=$LFS_TGT --target=$LFS_TGT  LDFLAGS_FOR_TARGET=-L$PWD/$LFS_TGT/libgcc --with-build-sysroot=$LFS --enable-default-pie --enable-default-ssp --disable-multilib --disable-libatomic --disable-libgomp --disable-libquadmath --disable-libsanitizer --disable-libssp --disable-libvtv --enable-languages=c,c++
				make $MAKEFLAGS||make
				make DESTDIR=$LFS install
				ln -sfnv gcc $LFS/usr/bin/cc
			popd
			rm -rf ${NAME}-${VERSION}
			echo "$((++ TOOLNUM))" > ${SYSTEMSOURCE}/toolnum
			;;

		23)
			sudo -p "Enter admin PW to set ownership of $LFS/* back to root: " chown -R root:root $LFS/{usr,lib${LIBDIRSUFFIX},var,etc,bin,sbin,tools}
			echo "DONE" > ${SYSTEMSOURCE}/toolnum
			TOOLNUM="DONE"
			;;
	esac
done