#!/usr/bin/env bash

mkdir -p mpfr
archivepath=$(find "${SOURCES}" -name "mpfr*.tar.*" -print)
tar -xf ../"$(basename "${archivepath}")" -C mpfr --strip-components=1

mkdir -p gmp
archivepath=$(find "${SOURCES}" -name "gmp*.tar.*" -print)
tar -xf ../"$(basename "${archivepath}")" -C gmp --strip-components=1

mkdir -p mpc
archivepath=$(find "${SOURCES}" -name "mpc*.tar.*" -print)
tar -xf ../"$(basename "${archivepath}")" -C mpc --strip-components=1

case $(uname -m) in
  x86_64)
    sed -e '/m64=/s/lib64/lib/' -i gcc/config/i386/t-linux64
  ;;
esac

sed '/thread_header =/s/@.*@/gthr-posix.h/' \
    -i libgcc/Makefile.in libstdc++-v3/include/Makefile.in

mkdir build

cd build || return 1
../configure                                       \
    --build="$(../config.guess)"                     \
    --host="${LFS_TGT}"                                \
    --target="${LFS_TGT}"                              \
    --prefix=/usr                                  \
    --with-build-sysroot="${LFS}"                      \
    --enable-default-pie                           \
    --enable-default-ssp                           \
    --disable-nls                                  \
    --disable-multilib                             \
    --disable-libatomic                            \
    --disable-libgomp                              \
    --disable-libquadmath                          \
    --disable-libsanitizer                         \
    --disable-libssp                               \
    --disable-libvtv                               \
    --enable-languages=c,c++                       \
    LDFLAGS_FOR_TARGET=-L"${PWD}"/"${LFS_TGT}"/libgcc

make
make DESTDIR="${LFS}" install

ln -s gcc "${LFS}"/usr/bin/cc