Building the temporary build system

The steps to be taken are entirely analogous to those in chapter 5 of LFS 5.0. Please refer there for full details.

The main differences from LFS 5 in this build are:

One must be sure to include the cross-compiling toolchain in the PATH, after /tools/bin but before the host system's 32-bit toolchain:
export PATH=/tools/bin:/opt/x86_64/x86_64-unknown-linux/bin:$PATH
Some versions are different: bison-1.75 instead of 1.875 (0wnership of GNU's server caused FSF to "temporarily" make bison-1.875 unavailable. Linux-2.4.24 instead of 2.4.24 (because 2.4.24 is better).
The "locking-in" glibc step is changed because the name and location of the dynamic loader is different for x86-64.

I give the complete steps below, commenting only when there is a significant difference from LFS 5.0.

The convention for dual i686/x86_64 configurations is for i686 libraries to go in /lib, and x86_64 libraries to go in /lib64. Some of the components we are going to build will install their libraries into /lib, even when told to install them in /lib64. We want all the libraries in the same directory, and since we are not building i686 libraries yet, we will make the following symlink before building binutils:

mkdir /tools/lib
ln -s lib /tools/lib64

binutils-2.14, pass 1

Be sure the path is set up as indicated above, with the new cross-compiler included before the host system's default compiler.

mkdir ../binutils-build
cd ../binutils-build
../binutils-2.14/configure \
    --prefix=/tools --disable-nls
make configure-host
make LDFLAGS="-all-static"
make install
make -C ld clean
make -C ld LDFLAGS="-all-static" LIB_PATH=/tools/lib

gcc-3.1.1 pass 1

mkdir ../gcc-build
cd ../gcc-build
../gcc-3.3.1/configure --prefix=/tools \
    --with-local-prefix=/opt/x86-64 \
    --disable-nls --enable-shared \
    --enable-languages=c  
make BOOT_LDFLAGS="-static" bootstrap
make install
ln -sf gcc /tools/bin/cc

--with-local-prefix=/opt/x86-64 ensures that headers are used preferentially from the cross-compiling toolchain.

linux-2.4.24 headers

make mrproper
yes "" | make config
make include/linux/version.h
make symlinks
mkdir /tools/include/asm
cp include/asm/* /tools/include/asm
cp -R include/asm-generic /tools/include
cp -R include/linux /tools/include
touch /tools/include/linux/autoconf.h

glibc-2.3.2

tar xjvf ../glibc-linuxthreads-2.3.2.tar.bz2
mkdir /tools/etc
touch /tools/etc/ld.so.conf
patch -Np1 -i ../glibc-2.3.2-sscanf-1.patch
mkdir ../glibc-build
cd ../glibc-build
../glibc-2.3.2/configure --prefix=/tools \
    --disable-profile --enable-add-ons \
    --with-headers=/tools/include \
    --with-binutils=/tools/bin \
    --without-gd
make 
make install
make localedata/install-locales

Locking in glibc

Run this from within binutils-build:


make -C ld install

SPECFILE=/tools/lib/gcc-lib/*/*/specs &&
sed -e 's@ /lib64/ld-linux-x86-64.so.2@ /tools/lib64/ld-linux-x86-64.so.2@g' \
    $SPECFILE > tempspecfile &&
mv -f tempspecfile $SPECFILE &&
sed -e 's@ /lib/ld-linux.so.2@ /tools/lib/ld-linux.so.2@g' \
    $SPECFILE > tempspecfile &&
mv -f tempspecfile $SPECFILE &&
unset SPECFILE

rm -f /tools/lib/gcc-lib/*/*/include/{pthread.h,bits/sigthread.h}

The expected configuration for a dual i686/x86_64 system is for the i686 libraries to be installed in /lib, and the x86_64 libraries to be installed in /lib64. Also, the dynamic loaders have different names. Technically, we should probably disable the 32-bit configuration completely in the specs file, since we are not building 32-bit libraries. It does not do any harm for this to be in the specs file as long as we do not actually try to use it, so we leave it.

tcl-8.4.4

cd unix
./configure --prefix=/tools
make 
make install





expect-5.39.0
patch -Np1 -i ../expect-5.39.0-spawn.patch
./configure --prefix=/tools --with-tcl=/tools/lib --with-x=no
make 
make SCRIPTS="" install




DejaGnu-1.4.3
./configure --prefix=/tools
make install




gcc-3.3.1 pass 2
patch -Np1 -i ../gcc-3.3.1-no_fixincludes-2.patch
patch -Np1 -i ../gcc-3.3.1-specs-2.patch
mkdir ../gcc-build
cd ../gcc-build
../gcc-3.3.1/configure --prefix=/tools \
    --with-local-prefix=/tools \
    --disable-multilib \
    --enable-clocale=gnu --enable-shared \
    --enable-threads=posix --enable-__cxa_atexit \
    --enable-languages=c,c++
make 
make -k check
make install

By default, when configured for x86_64, gcc-3.3.1 tries to support building for
both i686 and x86_64.  --disable-multilib indicates that no attempt should be 
made to enable support for i686.



binutils-2.14, pass 2
mkdir ../binutils-build
cd ../binutils-build
../binutils-2.14/configure --prefix=/tools \
    --enable-shared --with-lib-path=/tools/lib
make -j 
make check
make install
make -C ld clean
make -C ld LIB_PATH=/usr/lib:/lib




gawk-3.1.3
./configure --prefix=/tools
make 
make install




coreutils-5.0
./configure --prefix=/tools
make 
make install




bzip2-1.0.2
make PREFIX=/tools install




gzip-1.3.5
./configure --prefix=/tools
make 
make install




diffutils-2.8.1
./configure --prefix=/tools
make 
make install




findutils-4.1.20
./configure --prefix=/tools
make 
make install




make-3.80
./configure --prefix=/tools
make 
make install




grep-2.5.1
./configure --prefix=/tools \
    --disable-perl-regexp --with-included-regex
make 
make install




sed-4.0.7
./configure --prefix=/tools
make 
make install




gettext-0.12.1
CXXFLAGS='-nostdlib' ./configure --prefix=/tools
make -j $CC_PARALLEL
make install

I found that -nostdlib is needed to prevent the c++ compiler from attempting
to link two copies of part of the c runtime library.



ncurses-5.3
patch -Np1 -i ../ncurses-5.3-etip-2.patch
patch -Np1 -i ../ncurses-5.3-vsscanf.patch

./configure --prefix=/tools --with-shared \
    --without-debug --without-ada --enable-overwrite
make  
make install




patch-2.5.4
./configure --prefix=/tools
make 
make install




tar-1.13.25
./configure --prefix=/tools
make 
make install




texinfo-4.6
./configure --prefix=/tools
make 
make install




bash-2.05b
patch -Np1 -i ../bash-2.05b-2.patch
./configure --prefix=/tools
make
make install
ln -s bash /tools/bin/sh




util-linux-2.12
cp configure configure.backup
sed "s@/usr/include@/tools/include@g" configure.backup > configure 
./configure
make -C lib
make -C mount  mount umount
make -C text-utils  more
cp mount/{,u}mount text-utils/more /tools/bin




perl-5.8.0
patch -Np1 -i ../perl-5.8.0-libc-3.patch
chmod u+w hints/linux.sh
echo 'static_ext="IO re Fcntl"' >> hints/linux.sh
./configure.gnu --prefix=/tools
make perl utilities
cp perl pod/pod2man /tools/bin
mkdir -p /tools/lib/perl5/5.8.0
cp -R lib/* /tools/lib/perl5/5.8.0




Next: building the base system.