# $Id: PKGBUILD 60966 2011-12-19 19:56:09Z lcarlier $
# Maintainer: Evangelos Foutras <foutrelis@gmail.com>
# Contributor: Jan "heftig" Steffens <jan.steffens@gmail.com>
# Contributor: Sebastian Nowicki <sebnow@gmail.com>
# Contributor: Devin Cofer <ranguvar{AT]archlinux[DOT}us>
# Contributor: Tobias Kieslich <tobias@justdreams.de>
# Contributor: Geoffroy Carrier <geoffroy.carrier@aur.archlinux.org>
# Contributor: Tomas Lindquist Olsen <tomas@famolsen.dk>
# Contributor: Roberto Alsina <ralsina@kde.org>
# Contributor: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

pkgname=('lib32-llvm')
pkgver=3.0
pkgrel=1
arch=('x86_64')
url="http://llvm.org/"
license=('custom:University of Illinois/NCSA Open Source License')
makedepends=('lib32-libffi' 'python2' 'gcc-multilib')
source=(http://llvm.org/releases/$pkgver/llvm-$pkgver.tar.gz
        http://llvm.org/releases/$pkgver/clang-$pkgver.tar.gz
        clang-plugin-loader-registry.patch)
sha256sums=('519eb11d3499ce99c6ffdb8718651fc91425ed7690eac91c8d6853474f7c0477'
            'b64e72da356d7c3428cfd7ac620d49ec042c84eaee13c26024879f555f4e126d'
            'a0a4494f2a692789670be37fd390906dcaa37b1824f740bdaaea21182f2f3a9c')

build() {
  cd "$srcdir/llvm-$pkgver.src"

  export CC="gcc -m32"
  export CXX="g++ -m32"
  export PKG_CONFIG_PATH="/usr/lib32/pkgconfig"

  # Fix symbolic links from OCaml bindings to LLVM libraries
  sed -i 's:\$(PROJ_libdir):/usr/lib/llvm:' bindings/ocaml/Makefile.ocaml

  # Fix installation directories, ./configure doesn't seem to set them right
  sed -i -e 's:\$(PROJ_prefix)/etc/llvm:/etc/llvm:' \
         -e 's:\$(PROJ_prefix)/lib:$(PROJ_prefix)/lib32/llvm:' \
         -e 's:\$(PROJ_prefix)/docs/llvm:$(PROJ_prefix)/share/doc/llvm:' \
    Makefile.config.in

  # Fix insecure rpath (http://bugs.archlinux.org/task/14017)
  sed -i 's:$(RPATH) -Wl,$(\(ToolDir\|LibDir\|ExmplDir\))::g' Makefile.rules

  # Get the correct list of symbols to export
  # See http://lists.cs.uiuc.edu/pipermail/cfe-dev/2010-April/008559.html
  patch -Np1 -i "$srcdir/clang-plugin-loader-registry.patch"

  # Apply strip option to configure
  _optimized_switch="enable"
  [[ $(check_option strip) == n ]] && _optimized_switch="disable"

  # Include location of libffi headers in CPPFLAGS
  export CPPFLAGS="$CPPFLAGS $(pkg-config --cflags libffi)"

  _cxx_headers="/usr/include/c++/clang-$pkgver"

  _32bit_headers=""
  if [[ $CARCH == x86_64 ]]; then
    # Important for multilib
    _32bit_headers="32"
  fi

  ./configure \
    --prefix=/usr \
    --libdir=/usr/lib32/llvm \
    --sysconfdir=/etc \
    --enable-shared \
    --enable-libffi \
    --enable-targets=all \
    --disable-expensive-checks \
    --disable-debug-runtime \
    --disable-assertions \
    --with-binutils-include=/usr/include \
    --with-cxx-include-root=$_cxx_headers \
    --with-cxx-include-arch=$CHOST \
    --with-cxx-include-32bit-dir=$_32bit_headers \
    --$_optimized_switch-optimized

  make REQUIRES_RTTI=1
}

package() {
  pkgdesc="Low Level Virtual Machine (32 bits version)"
  depends=('perl' 'lib32-libffi' 'llvm')

  cd "$srcdir/llvm-$pkgver.src"

  # We move the clang directory out of the tree so it won't get installed and
  # then we bring it back in for the clang package
  # mv tools/clang "$srcdir"
  # -j1 is due to race conditions during the installation of the OCaml bindings
  make -j1 DESTDIR="$pkgdir" install

  # Fix permissions of static libs
  chmod -x "$pkgdir"/usr/lib32/llvm/*.a

  # Fix libdir in llvm-config (http://bugs.archlinux.org/task/14487)
  #sed -i 's:\(ABS_RUN_DIR/lib\):\1/llvm:' "$pkgdir/usr/bin/llvm-config"
  sed -i 's:ABS_RUN_DIR/lib:ABS_RUN_DIR/llvm:' "$pkgdir/usr/bin/llvm-config"
  mv "$pkgdir/usr/bin/llvm-config" "$pkgdir/usr/lib32/llvm/llvm-config"
  # Get rid of example Hello transformation
  rm "$pkgdir"/usr/lib32/llvm/*LLVMHello.*

  # Symlink the gold plugin where clang expects it
  ln -s llvm/LLVMgold.so "$pkgdir/usr/lib32/LLVMgold.so"

  # Add ld.so.conf.d entry
  install -d "$pkgdir/etc/ld.so.conf.d"
  echo /usr/lib32/llvm >"$pkgdir/etc/ld.so.conf.d/llvm32.conf"

  install -Dm644 LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"

  rm -r "$pkgdir"/usr/{bin,include,share/{doc,man}}
}