#!/bin/bash
# LFS 11.2 Build Script
# Builds the cross-toolchain and cross compiling temporary tools from chapters 5 and 6
# by Luís Mendes :)
# 06/Sep/2022

package_name=""
package_ext=""

begin() {
	package_name=$1
	package_ext=$2

	echo "[lfs-cross] Starting build of $package_name at $(date)"

	tar xf $package_name.$package_ext
	cd $package_name
}

finish() {
	echo "[lfs-cross] Finishing build of $package_name at $(date)"

	cd $LFS/sources
	rm -rf $package_name
}

cd $LFS/sources

# 5.2. Binutils-2.39 - Pass 1
begin binutils-2.39 tar.xz
mkdir -v build
cd       build
../configure --prefix=$LFS/tools \
             --with-sysroot=$LFS \
             --target=$LFS_TGT   \
             --disable-nls       \
             --enable-gprofng=no \
             --disable-werror
make
make install
finish

# 5.3. GCC-12.2.0 - Pass 1
begin gcc-12.2.0 tar.xz
tar -xf ../mpfr-4.1.0.tar.xz
mv -v mpfr-4.1.0 mpfr
tar -xf ../gmp-6.2.1.tar.xz
mv -v gmp-6.2.1 gmp
tar -xf ../mpc-1.2.1.tar.gz
mv -v mpc-1.2.1 mpc
case $(uname -m) in
  x86_64)
    sed -e '/m64=/s/lib64/lib/' \
        -i.orig gcc/config/i386/t-linux64
 ;;
esac
mkdir -v build
cd       build
../configure                  \
    --target=$LFS_TGT         \
    --prefix=$LFS/tools       \
    --with-glibc-version=2.36 \
    --with-sysroot=$LFS       \
    --with-newlib             \
    --without-headers         \
    --disable-nls             \
    --disable-shared          \
    --disable-multilib        \
    --disable-decimal-float   \
    --disable-threads         \
    --disable-libatomic       \
    --disable-libgomp         \
    --disable-libquadmath     \
    --disable-libssp          \
    --disable-libvtv          \
    --disable-libstdcxx       \
    --enable-languages=c,c++
make
make install
cd ..
cat gcc/limitx.h gcc/glimits.h gcc/limity.h > \
  `dirname $($LFS_TGT-gcc -print-libgcc-file-name)`/install-tools/include/limits.h
finish

# 5.4. Linux-5.19.2 API Headers
begin linux-5.19.2 tar.xz
make mrproper
make headers
find usr/include -type f ! -name '*.h' -delete
cp -rv usr/include $LFS/usr
finish

# 5.5. Glibc-2.36
begin glibc-2.36 tar.xz
case $(uname -m) in
    i?86)   ln -sfv ld-linux.so.2 $LFS/lib/ld-lsb.so.3
    ;;
    x86_64) ln -sfv ../lib/ld-linux-x86-64.so.2 $LFS/lib64
            ln -sfv ../lib/ld-linux-x86-64.so.2 $LFS/lib64/ld-lsb-x86-64.so.3
    ;;
esac
patch -Np1 -i ../glibc-2.36-fhs-1.patch
mkdir -v build
cd       build
echo "rootsbindir=/usr/sbin" > configparms
../configure                             \
      --prefix=/usr                      \
      --host=$LFS_TGT                    \
      --build=$(../scripts/config.guess) \
      --enable-kernel=3.2                \
      --with-headers=$LFS/usr/include    \
      libc_cv_slibdir=/usr/lib
make
make DESTDIR=$LFS install
sed '/RTLDLIST=/s@/usr@@g' -i $LFS/usr/bin/ldd
echo 'int main(){}' | gcc -xc -
readelf -l a.out | grep ld-linux
rm -v a.out
$LFS/tools/libexec/gcc/$LFS_TGT/12.2.0/install-tools/mkheaders
finish

# 5.6. Libstdc++ from GCC-12.2.0
begin gcc-12.2.0 tar.xz
mkdir -v build
cd       build
../libstdc++-v3/configure           \
    --host=$LFS_TGT                 \
    --build=$(../config.guess)      \
    --prefix=/usr                   \
    --disable-multilib              \
    --disable-nls                   \
    --disable-libstdcxx-pch         \
    --with-gxx-include-dir=/tools/$LFS_TGT/include/c++/12.2.0
make
make DESTDIR=$LFS install
rm -v $LFS/usr/lib/lib{stdc++,stdc++fs,supc++}.la
finish

# 6.2. M4-1.4.19
begin m4-1.4.19 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.3. Ncurses-6.3
begin ncurses-6.3 tar.gz
sed -i s/mawk// configure
mkdir build
pushd build
  ../configure
  make -C include
  make -C progs tic
popd
./configure --prefix=/usr                \
            --host=$LFS_TGT              \
            --build=$(./config.guess)    \
            --mandir=/usr/share/man      \
            --with-manpage-format=normal \
            --with-shared                \
            --without-normal             \
            --with-cxx-shared            \
            --without-debug              \
            --without-ada                \
            --disable-stripping          \
            --enable-widec
make
make DESTDIR=$LFS TIC_PATH=$(pwd)/build/progs/tic install
echo "INPUT(-lncursesw)" > $LFS/usr/lib/libncurses.so
finish

# 6.4. Bash-5.1.16
begin bash-5.1.16 tar.gz
./configure --prefix=/usr                   \
            --build=$(support/config.guess) \
            --host=$LFS_TGT                 \
            --without-bash-malloc
make
make DESTDIR=$LFS install
ln -sv bash $LFS/bin/sh
finish

# 6.5. Coreutils-9.1
begin coreutils-9.1 tar.xz
./configure --prefix=/usr                     \
            --host=$LFS_TGT                   \
            --build=$(build-aux/config.guess) \
            --enable-install-program=hostname \
            --enable-no-install-program=kill,uptime
make
make DESTDIR=$LFS install
mv -v $LFS/usr/bin/chroot              $LFS/usr/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
finish

# 6.6. Diffutils-3.8
begin diffutils-3.8 tar.xz
./configure --prefix=/usr --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.7. File-5.42
begin file-5.42 tar.gz
mkdir build
pushd build
  ../configure --disable-bzlib      \
               --disable-libseccomp \
               --disable-xzlib      \
               --disable-zlib
  make
popd
./configure --prefix=/usr --host=$LFS_TGT --build=$(./config.guess)
make FILE_COMPILE=$(pwd)/build/src/file
make DESTDIR=$LFS install
rm -v $LFS/usr/lib/libmagic.la
finish

# 6.8. Findutils-4.9.0
begin findutils-4.9.0 tar.xz
./configure --prefix=/usr                   \
            --localstatedir=/var/lib/locate \
            --host=$LFS_TGT                 \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.9. Gawk-5.1.1
begin gawk-5.1.1 tar.xz
sed -i 's/extras//' Makefile.in
./configure --prefix=/usr   \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.10. Grep-3.7
begin grep-3.7 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.11. Gzip-1.12
begin gzip-1.12 tar.xz
./configure --prefix=/usr --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.12. Make-4.3
begin make-4.3 tar.gz
./configure --prefix=/usr   \
            --without-guile \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.13. Patch-2.7.6
begin patch-2.7.6 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.14. Sed-4.8
begin sed-4.8 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.15. Tar-1.34
begin tar-1.34 tar.xz
./configure --prefix=/usr                     \
            --host=$LFS_TGT                   \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.16. Xz-5.2.6
begin xz-5.2.6 tar.xz
./configure --prefix=/usr                     \
            --host=$LFS_TGT                   \
            --build=$(build-aux/config.guess) \
            --disable-static                  \
            --docdir=/usr/share/doc/xz-5.2.6
make
make DESTDIR=$LFS install
rm -v $LFS/usr/lib/liblzma.la
finish

# 6.17. Binutils-2.39 - Pass 2
begin binutils-2.39 tar.xz
sed '6009s/$add_dir//' -i ltmain.sh
mkdir -v build
cd       build
../configure                   \
    --prefix=/usr              \
    --build=$(../config.guess) \
    --host=$LFS_TGT            \
    --disable-nls              \
    --enable-shared            \
    --enable-gprofng=no        \
    --disable-werror           \
    --enable-64-bit-bfd
make
make DESTDIR=$LFS install
rm -v $LFS/usr/lib/lib{bfd,ctf,ctf-nobfd,opcodes}.{a,la}
finish

# 6.18. GCC-12.2.0 - Pass 2
begin gcc-12.2.0 tar.xz
tar -xf ../mpfr-4.1.0.tar.xz
mv -v mpfr-4.1.0 mpfr
tar -xf ../gmp-6.2.1.tar.xz
mv -v gmp-6.2.1 gmp
tar -xf ../mpc-1.2.1.tar.gz
mv -v mpc-1.2.1 mpc
case $(uname -m) in
  x86_64)
    sed -e '/m64=/s/lib64/lib/' -i.orig gcc/config/i386/t-linux64
  ;;
esac
sed '/thread_header =/s/@.*@/gthr-posix.h/' \
    -i libgcc/Makefile.in libstdc++-v3/include/Makefile.in
mkdir -v build
cd       build
../configure                                       \
    --build=$(../config.guess)                     \
    --host=$LFS_TGT                                \
    --target=$LFS_TGT                              \
    LDFLAGS_FOR_TARGET=-L$PWD/$LFS_TGT/libgcc      \
    --prefix=/usr                                  \
    --with-build-sysroot=$LFS                      \
    --enable-initfini-array                        \
    --disable-nls                                  \
    --disable-multilib                             \
    --disable-decimal-float                        \
    --disable-libatomic                            \
    --disable-libgomp                              \
    --disable-libquadmath                          \
    --disable-libssp                               \
    --disable-libvtv                               \
    --enable-languages=c,c++
make
make DESTDIR=$LFS install
ln -sv gcc $LFS/usr/bin/cc
finish