# Maintainer (Arch): Allan McRae <allan@archlinux.org>
# Contributor: André Silva <emulatorman@hyperbola.info>
# Contributor: Márcio Silva <coadde@hyperbola.info>
# Maintainer: Luke R. <g4jc@openmailbox.org>
# Maintainer: David P. <megver83@parabola.nu>

_target=xtensa-unknown-elf
pkgname=$_target-gcc
pkgver=7.3.1
_islver=0.18
pkgrel=2
_snapshot=7-20180125
pkgdesc='The GNU Compiler Collection - C and C++ frontends'
arch=('x86_64' 'i686' 'armv7h')
url='http://gcc.gnu.org/'
license=(GPL LGPL FDL)
depends=($_target-binutils libmpc zlib)
makedepends=(gmp mpfr)
options=(!emptydirs !strip)
source=(#https://gcc.gnu.org/pub/gcc/releases/gcc-$pkgver/gcc-$pkgver.tar.bz2
        https://gcc.gnu.org/pub/gcc/snapshots/$_snapshot/gcc-$_snapshot.tar.xz
        http://isl.gforge.inria.fr/isl-$_islver.tar.bz2
        https://raw.githubusercontent.com/qca/open-ath9k-htc-firmware/master/local/patches/gcc.patch)
sha512sums=('87558e9cf6d44df0c45e2bde8ef4d4a8b77716382ae0cd787b80bb4650a0a033d2b815a3b3eaa1798a16d66afca0d38c83a268bed0b26bdf013a483f04923298'
            '85d0b40f4dbf14cb99d17aa07048cdcab2dc3eb527d2fbb1e84c41b2de5f351025370e57448b63b2b8a8cf8a0843a089c3263f9baee1542d5c2e1cb37ed39d94'
            '7637408259cef4b14a2f41690bbc769ad0dc6cf4d1c782405526aeb58f68193269af6882b23fb57c3521174e45709ed2d54f0af1f835646e70a3bfd9f626aad9')

if [ -n "$_snapshot" ]; then
  _basedir=gcc-$_snapshot
else
  _basedir=gcc-$pkgver
fi

prepare() {
  cd $_basedir

  # link isl for in-tree builds
  ln -sf ../isl-$_islver isl

  echo $pkgver > gcc/BASE-VER

  # Do not run fixincludes
  sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in

  # hack! - some configure tests for header files using "$CPP $CPPFLAGS"
  sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" "$srcdir"/$_basedir/{libiberty,gcc}/configure
  
  patch -p1 -i ../gcc.patch

  rm -rf $srcdir/gcc-build
  mkdir $srcdir/gcc-build
}

build() {
  cd gcc-build

  # using -pipe causes spurious test-suite failures
  # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48565
  CFLAGS=${CFLAGS/-pipe/}
  CXXFLAGS=${CXXFLAGS/-pipe/}
  
  # --disable-linker-build-id: https://bugs.archlinux.org/task/34902

  $srcdir/$_basedir/configure \
    --target=$_target \
    --prefix=/usr \
    --enable-languages=c,c++ \
    --enable-languages=c,c++ \
    --enable-shared \
    --enable-threads=posix \
    --enable-libmpx \
    --enable-__cxa_atexit \
    --enable-gnu-unique-object \
    --enable-lto \
    --enable-plugins \
    --enable-install-libiberty \
    --enable-gnu-indirect-function \
    --enable-checking=release \
    --disable-libunwind-exceptions \
    --disable-libstdcxx-pch \
    --disable-libssp \
    --disable-multilib \
    --disable-werror \
    --disable-nls \
    --with-system-zlib \
    --with-isl \
    --with-linker-hash-style=gnu \
    --with-pkgversion='Parabola Repository' \
    --with-bugurl='https://labs.parabola.nu/'

  make ${MAKEFLAGS} all-gcc

}

package() {
  cd gcc-build

  make DESTDIR="$pkgdir" install-gcc
  libtool --finish $pkgdir/usr/lib/gcc/$_target/$pkgver
  
  # strip target binaries
  find "$pkgdir"/usr/lib/gcc/$_target/ -type f -and \( -name \*.a -or -name \*.o \) -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 "$pkgdir"/usr/bin/ "$pkgdir"/usr/lib/gcc/$_target/ -type f -and \( -executable \) -exec strip '{}' \;

  # Remove files that conflict with host gcc package
  rm -r "$pkgdir"/usr/share/man/man7
  rm -r "$pkgdir"/usr/share/info
}