_target=mips
_triplet="$_target-ultra64-elf"
_prefix="/opt/$_triplet"
_sysroot="$_prefix/sysroot"

pkgname="$_triplet-gcc"
pkgver=11.2.0
pkgrel=1
_gcc="gcc-$pkgver"
_mpfr=mpfr-4.1.0
_gmp=gmp-6.2.1
_mpc=mpc-1.2.1
_isl=isl-0.18
pkgdesc="The GNU Compiler Collection ($_triplet)"
arch=('any')
license=('GPL' 'LGPL' 'FDL')
url='http://www.gnu.org/software/gcc/'
depends=('zlib' "$_triplet-binutils" "$_triplet-newlib")
makedepends=('gmp' 'mpfr')
conflicts=("$_triplet-bootstrap")
provides=("$_triplet-bootstrap")
replaces=("$_triplet-bootstrap")
source=("ftp://gcc.gnu.org/pub/gcc/releases/$_gcc/$_gcc.tar.gz"
        "ftp://ftp.gnu.org/gnu/mpfr/$_mpfr.tar.bz2"
        "ftp://ftp.gnu.org/gnu/gmp/$_gmp.tar.bz2"
        "ftp://ftp.gnu.org/gnu/mpc/$_mpc.tar.gz"
        "ftp://gcc.gnu.org/pub/gcc/infrastructure/$_isl.tar.bz2")
sha256sums=('f0837f1bf8244a5cc23bd96ff6366712a791cfae01df8e25b137698aca26efc1'
            'feced2d430dd5a97805fa289fed3fc8ff2b094c02d05287fd6133e7f1f0ec926'
            'eae9326beb4158c386e39a356818031bd28f3124cf915f8c5b1dc4c7a36b4d7c'
            '17503d2c395dfcf106b622dc142683c1199431d095367c6aacba6eec30340459'
            '6b8b0fd7f81d0a957beb3679c81bbb34ccc7568d5682844d8924424a0dadcb1b')
options=('!emptydirs' '!strip')

prepare() {
  cd "$srcdir/$_isl"
  # Fix trailing comma which errors with -pedantic for host GCC <= 4.3
  sed -i 's/isl_stat_ok = 0,/isl_stat_ok = 0/' "include/isl/ctx.h"

  cd "$srcdir/$_gcc"
  rm -rf mpfr gmp mpc isl
  ln -sf "$srcdir/$_mpfr" mpfr
  ln -sf "$srcdir/$_gmp" gmp
  ln -sf "$srcdir/$_mpc" mpc
  ln -sf "$srcdir/$_isl" isl
  # Hack - see native package for details
  sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" {libiberty,gcc}/configure
}

build() {
  # the programs we're compiling are really picky about flags.
  # it's best to keep it simple.
  export CFLAGS="-O2"
  export CXXFLAGS="-O2"
  export CPPFLAGS=""
  export LDFLAGS=""

  export CFLAGS_FOR_TARGET="-fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables"
  export CXXFLAGS_FOR_TARGET="$CFLAGS_FOR_TARGET -fno-rtti"

  cd "$srcdir"
  [ -d "build-gcc" ] || mkdir "build-gcc"
  cd "build-gcc"

  local _build=
  if [ -n "$MINGW_CHOST" ]; then
    _build="--build=$MINGW_CHOST --host=$MINGW_CHOST"
  fi

  "../$_gcc/configure" $_build \
    --target=$_target \
    --prefix="$_prefix" \
    --with-sysroot="$_sysroot" \
    \
    --disable-__cxa_atexit \
    --disable-decimal-float \
    --disable-gold \
    --disable-initfini-array \
    --disable-libada \
    --disable-libatomic \
    --disable-libgcj \
    --disable-libgomp \
    --disable-libitm \
    --disable-libquadmath \
    --disable-libquadmath-support \
    --disable-libsanitizer \
    --disable-libssp \
    --disable-libunwind-exceptions \
    --disable-libvtv \
    --disable-multiarch \
    --disable-multilib \
    --disable-nls \
    --disable-plugin \
    --disable-shared \
    --disable-threads \
    --disable-tls \
    --disable-werror \
    --enable-languages=c,c++,lto \
    --enable-lto \
    --enable-static \
    --enable-target-optspace \
    --with-abi=32 \
    --with-arch=vr4300 \
    --with-gnu-as \
    --with-gnu-ld \
    --with-newlib \
    --with-tune=vr4300 \
    --without-headers \
    --without-included-gettext \

  make all
}

package() {
  local PREFIX="$pkgdir$_prefix"

  cd "$srcdir/build-gcc"
  make DESTDIR="$pkgdir" install -j1

  # strip target binaries
  find "$PREFIX/$_target/lib" \( -name "*.a" -or -name "*.o" \) -exec $_target-objcopy \
    -R .comment -R .note -R .debug_info -R .debug_aranges -R .debug_pubnames -R .debug_pubtypes -R .debug_abbrev -R .debug_line -R .debug_str -R .debug_ranges -R .debug_loc \
    '{}' \;

  # strip host binaries
  find "$PREFIX/bin" "$PREFIX/lib/gcc/$_target/${_gcc/gcc-/}" \
    -type f -and \( -executable \) -exec strip '{}' \;

  rm -r "$PREFIX/share/info"
}