name=gcc
version=5.2.0
gmp_shortver=6.0.0
gmp_version=${gmp_shortver}a
mpfr_version=3.1.3
mpc_version=1.0.3

dlextract "https://ftp.gnu.org/gnu/$name/$name-$version/$name-$version.tar.bz2" \
          "a51bcfeb3da7dd4c623e27207ed43467"
download "https://ftp.gnu.org/gnu/gmp/gmp-$gmp_version.tar.xz" \
         "1e6da4e434553d2811437aa42c7f7c76"
download "https://ftp.gnu.org/gnu/mpfr/mpfr-$mpfr_version.tar.xz" \
         "6969398cd2fbc56a6af570b5273c56a9"
download "https://ftp.gnu.org/gnu/mpc/mpc-$mpc_version.tar.gz" \
         "d6a1d5f8ddea3abd2cc3e98f58352d26"
header_end

cd "$name-$version"

extract "gmp-$gmp_version.tar.xz"
extract "mpfr-$mpfr_version.tar.xz"
extract "mpc-$mpc_version.tar.gz"
mv "gmp-$gmp_shortver" gmp
mv "mpfr-$mpfr_version" mpfr
mv "mpc-$mpc_version" mpc

for file in \
    $(find gcc/config -name linux64.h -o -name linux.h -o -name sysv4.h)
do
    cp -u $file $file.orig
    sed -e 's@/lib\(64\)\?\(32\)\?/ld@/tools&@g' \
        -e 's@/usr@/tools@g' $file.orig > $file
    echo '
#undef STANDARD_STARTFILE_PREFIX_1
#undef STANDARD_STARTFILE_PREFIX_2
#define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/"
#define STANDARD_STARTFILE_PREFIX_2 ""' >> $file
    touch $file.orig
done

mkdir "../$name-build"; cd "../$name-build"

"../$name-$version/configure" \
    --target="$target" \
    --prefix=/tools \
    --with-glibc-version=2.11 \
    --with-sysroot="$dir_install" \
    --with-newlib \
    --without-headers \
    --with-local-prefix=/tools \
    --with-native-system-header-dir=/tools/include \
    --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 DESTDIR="$dir_install" install

# vim:set tabstop=4 shiftwidth=4 syntax=sh et: