Ref: http://www.linuxfromscratch.org/~dj/lfs-systemd-multilib/chapter10/chapter10.html

tce-load -i compiletc texinfo python3.6 gettext coreutils

mkdir /opt/temptools
export PATH_HOLD="${PATH}"
export PATH="/opt/temptools/bin:${PATH}"

cd binutils-2.33.1

mkdir build
cd build

../configure --prefix=/opt/temptools --disable-nls --disable-static --disable-werror --enable-64-bit-bfd --enable-gold --with-ld=default --enable-multilib --target=x86_64-unknown-linux-gnu --with-sysroot=/opt/temptools --with-lib-path=/opt/temptools/lib:/opt/temptools/lib32:/opt/temptools/libx32

make -j3 [5m 0.67s]
make install


cd gcc-9.2.0

sed -e '/m64=/s/lib64/lib/' -e '/m32=/s/m32=.*/m32=..\/lib32$(call if_multiarch,:i386-linux-gnu)/' -i.orig gcc/config/i386/t-linux64

tar -xf ../mpfr-4.0.2.tar.xz
mv -v mpfr-4.0.2 mpfr
tar -xf ../gmp-6.1.2.tar.xz
mv -v gmp-6.1.2 gmp
tar -xf ../mpc-1.1.0.tar.gz
mv -v mpc-1.1.0 mpc

mkdir build
cd build

../configure --target=x86_64-unknown-linux-gnu --prefix=/opt/temptools --disable-nls --disable-shared --disable-decimal-float --disable-threads --disable-libatomic --disable-libgomp --disable-libmpx --disable-libquadmath --disable-libssp --disable-libvtv --disable-libstdcxx --enable-languages=c,c++ --with-glibc-version=2.11 --with-slibdir=/opt/temptools/lib --with-sysroot=/opt/temptools --with-newlib --without-headers --with-local-prefix=/opt/temptools --with-multilib-list=m32,m64,mx32 --with-native-system-header-dir=/opt/temptools/include

make -j3 [13m 57.25s]
make install


cd glibc-2.30

edit manual/libc.texinfo
remove @documentencoding UTF-8

patch -Np1 -i ../glibc-2.30-fhs-1.patch

mkdir build
cd build

BUILD_CC="gcc" BUILD_CXX=g++ CC="x86_64-unknown-linux-gnu-gcc -m32" CXX="x86_64-unknown-linux-gnu-g++ -m32" AR="x86_64-unknown-linux-gnu-ar" RANLIB="x86_64-unknown-linux-gnu-ranlib" ../configure --prefix=/usr --build=x86_64-unknown-linux-gnu --host=i686-pc-linux-gnu --enable-kernel=3.2 --enable-multi-arch --libdir=/usr/lib32 --with-headers=/usr/include --with-binutils=/opt/temptools/bin libc_cv_slibdir=/usr/lib32

make -j3 [4m 52.61s]

make install_root="${PWD}/DESTDIR" install
sudo install -vdm755 /usr/lib32
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32
sudo install -vm644 DESTDIR/usr/include/gnu/lib-names-32.h /usr/include/gnu/
sudo install -vm644 DESTDIR/usr/include/gnu/stubs-32.h /usr/include/gnu/
sudo ln -svf ../usr/lib32/ld-linux.so.2 /lib/ld-linux.so.2
sudo ln -svf ../lib/locale /usr/lib32/locale
sudo echo "/usr/lib32" >> /etc/ld.so.conf

export PATH="${PATH_HOLD}"
unset PATH_HOLD
sudo rm -r /opt/temptools


cd binutils-2.33.1 (multi-lib)

mkdir build
cd build

../configure --prefix=/usr/local --enable-gold --enable-ld=default --enable-multilib --enable-plugins --enable-shared --disable-werror --with-system-zlib --with-lib-path=/usr/lib:/lib:/usr/lib32:/usr/libx32:/usr/local/lib:/usr/local/lib32

make -j3 tooldir=/usr/local [5m 20.43s]
sudo make tooldir=/usr/local install


tce-load -i mpc-dev

cd gcc-9.2.0 (multi-lib)

sed -e '/m64=/s/lib64/lib/' -e '/m32=/s/m32=.*/m32=..\/lib32$(call if_multiarch,:i386-linux-gnu)/' -i.orig gcc/config/i386/t-linux64

edit gcc/config/i386/linux64.h
#define GLIBC_DYNAMIC_LINKER64 "/lib/ld-linux-x86-64.so.2"

mkdir build
cd build

../configure --prefix=/usr/local --enable-languages=c,c++ --enable-multilib --disable-bootstrap --with-system-zlib --libexecdir=/usr/local/lib --with-mpfr=/usr/local --with-gmp=/usr/local --with-mpc=/usr/local

make -j3 [20m 21.93s]
sudo make install

sudo install -vdm755 /usr/local/share/gdb/auto-load/usr/lib
sudo mv -v /usr/local/lib/*gdb.py /usr/local/share/gdb/auto-load/usr/lib
sudo install -vdm755 /usr/local/share/gdb/auto-load/usr/lib32
sudo mv -v /usr/local/lib32/*gdb.py /usr/local/share/gdb/auto-load/usr/lib32/

sudo echo "/usr/local/lib32" >> /etc/ld.so.conf


cd glibc-2.30 multi-lib

edit manual/libc.texinfo
remove @documentencoding UTF-8

patch -Np1 -i ../glibc-2.30-fhs-1.patch

mkdir build64
cd build64

../configure --prefix=/usr --disable-werror --enable-multi-arch  --enable-stack-protector=strong libc_cv_slibdir=/lib --libexecdir=/usr/lib/glibc --enable-kernel=4.19.10 --enable-obsolete-rpc

make -j3 [5m 9.07s]

sed '/test-installation/s@$(PERL)@echo not running@' -i ../Makefile

sudo make install install_root=/tmp/pkg64

mkdir -v ../build32
cd ../build32

CC="gcc -m32" CXX="g++ -m32" ../configure --prefix=/usr --disable-werror --enable-multi-arch --enable-stack-protector=strong --libdir=/usr/lib32 libc_cv_slibdir=/usr/lib32 --libexecdir=/usr/lib32/glibc --enable-kernel=4.19.10 --enable-obsolete-rpc i686-pc-linux-gnu

make -j3 [5m 3.89s]

sudo make install_root=$PWD/DESTDIR install
sudo mv -v DESTDIR/usr/lib32/* /usr/lib32/
sudo install -vm644 DESTDIR/usr/include/gnu/lib-names-32.h /usr/include/gnu/
sudo install -vm644 DESTDIR/usr/include/gnu/stubs-32.h /usr/include/gnu/
ln -svf ../usr/lib32/ld-linux.so.2 /lib/ld-linux.so.2
ln -svf ../lib/locale /usr/lib32/locale

Note

These instructions assume that you've already completed LFS, and are adding to an existing system. If that is not the case, or if you are packaging the build, you will need to complete all of the steps in the Chapter 6 Glibc build.


cd zlib-1.2.11

CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" ./configure --prefix=/usr --libdir=/usr/lib32

find . -name Makefile -type f -exec sed -i 's/-O3//g' {} \;

make [0m 3.89s]
make DESTDIR=$PWD/DESTDIR install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32


cd file-5.37

CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" ./configure --prefix=/usr --libdir=/usr/lib32

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [0m 3.60s]
make DESTDIR=$PWD/DESTDIR install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32


cd bzip2-1.0.8

sed -i 's@\(ln -s -f \)$(PREFIX)/bin/@\1@' Makefile

find . -name Makefile-libbz2_so -type f -exec sed -i 's/-O2 -g//g' {} \;
make CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" BIGFILES="" -f Makefile-libbz2_so
make clean

find . -name Makefile -type f -exec sed -i 's/-O2 -g//g' {} \;
make CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" BIGFILES=""


make PREFIX=$PWD/DESTDIR/usr install
sudo cp -Rv DESTDIR/usr/lib/* /usr/lib32
sudo cp -av libbz2.so* /usr/lib32


cd ncurses-6.1

sed -i '/LIBTOOL_INSTALL/d' c++/Makefile.in

CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -m32 -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr --libdir=/usr/lib32 --mandir=/usr/share/man --with-shared --without-debug --without-normal --enable-pc-files --enable-widec

find . -name Makefile -type f -exec sed -i 's/-O2//g' {} \;

make [0m 34.48s]
make DESTDIR=$PWD/DESTDIR install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32


cd attr-2.4.48

CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" ./configure --prefix=/usr --disable-static --sysconfdir=/etc --libdir=/usr/lib32

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [0m 1.55s]
make DESTDIR=$PWD/DESTDIR install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32


tce-load -i attr-dev

cd acl-2.2.53

CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" ./configure --prefix=/usr --libdir=/usr/lib32 --disable-static --libexecdir=/usr/lib32

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [0m 4.46s]
make DESTDIR=$PWD/DESTDIR install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32


cd libcap-2.25

sed -i '/install.*STALIBNAME/d' libcap/Makefile

find . -name Make.Rules -type f -exec sed -i 's/-O2//g' {} \;

make CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" [0m 0.89s]
make lib=lib32 prefix=$PWD/DESTDIR/usr -C libcap install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32


cd xz-5.2.4

CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" ./configure --prefix=/usr --disable-static --libdir=/usr/lib32

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [0m 10.18s]
make DESTDIR=$PWD/DESTDIR install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32


cd util-linux-2.34

add tty:x:4: to /etc/group

CC="gcc -m32 -march=i486 -mtune=i686 -Os -pipe" ./configure ADJTIME_PATH=/var/lib/hwclock/adjtime --docdir=/usr/share/doc/util-linux-2.32.1 --disable-chfn-chsh --disable-login --disable-nologin --disable-su --disable-setpriv --disable-runuser --disable-pylibmount --disable-static --without-python --without-systemd --libdir=/usr/lib32 --enable-libmount-force-mountinfo

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [1m 6.40s]
make DESTDIR=$PWD/DESTDIR install
sudo cp -Rv DESTDIR/usr/lib32/* /usr/lib32