. ../support/do.inc

set -x

prefix="$(pwd)/stage1"
target=x86_64-linux-musl
sysroot="$prefix/$target"
sources=$(realpath ../sources)
patches=$(realpath ../patches)

unpacksrc () {
  name="$1"
  tarball="$(echo $sources/$name-*)"
  mkdir "$name"
  tar -C "$name" --strip-components 1 -xf "$tarball"
}

rm -rf "$prefix" ./build
mkdir build
cd build
unpacksrc binutils
unpacksrc musl
unpacksrc linux
unpacksrc gcc
cd gcc
unpacksrc gmp
unpacksrc mpc
unpacksrc mpfr
applydirpatches "$patches/$(archivename2packagename $(echo $sources/gcc-*))"
cd ..
cd linux
sed 's,/bin/pwd,pwd,g' -i Makefile
make ARCH=x86_64 O="$sysroot" headers_install
cd ..
mkdir objdir
cd objdir
mkdir binutils
cd binutils
../../binutils/configure \
  --prefix="$prefix" \
  --with-sysroot="$sysroot" \
  --target="$target" \
  --disable-multilib \
  --disable-separate-code \
  --disable-werror \
  --enable-deterministic-archives
make -j $(nproc) all
make install
cd ..
mkdir musl
cd musl
../../musl/configure \
  --prefix="$prefix" \
  --target="$target" \
  --syslibdir="$prefix/lib" \
  --includedir="$prefix/$target/include" \
  --libdir="$prefix/$target/lib"
make install-headers
cd ..
mkdir gcc
cd gcc
../../gcc/configure \
  --prefix="$prefix" \
  --with-sysroot="$sysroot" \
  --target="$target" \
  --enable-languages=c \
  --disable-multilib \
  --disable-werror \
  --disable-libmudflap \
  --disable-libsanitizer \
  --disable-gnu-indirect-function \
  --disable-libmpx \
  --enable-libstdcxx-time \
  --enable-tls \
  AR_FOR_TARGET="$prefix/bin/$target-ar" \
  AS_FOR_TARGET="$prefix/bin/$target-as" \
  LD_FOR_TARGET="$prefix/bin/$target-ld" \
  NM_FOR_TARGET="$prefix/bin/$target-nm" \
  OBJCOPY_FOR_TARGET="$prefix/bin/$target-objcopy" \
  OBJDUMP_FOR_TARGET="$prefix/bin/$target-objdump" \
  RANLIB_FOR_TARGET="$prefix/bin/$target-ranlib" \
  READELF_FOR_TARGET="$prefix/bin/$target-readelf" \
  STRIP_FOR_TARGET="$prefix/bin/$target-strip"
make -j $(nproc) all-gcc
make -j $(nproc) enable_shared=no all-target-libgcc
make install-gcc
cd ..
cd musl
make -j $(nproc) CC="$prefix/bin/$target-gcc" LIBCC="../gcc/$target/libgcc/libgcc.a"
make install
cd ..
cd gcc
# Rebuild libgcc with shared...
rm -rf libgcc/
make -j $(nproc) all-target-libgcc
make install-target-libgcc
# XXX make
# XXX make install
cd ../..

touch $out