# Lib32 Packages for Chakra, part of chakra-project.org
#
# maintainer (x86_64): Giuseppe Calà <jiveaxe@gmail.com>
# maintainer (x86_64): Anke Boersma <abveritas[at]chakra-project[dot]org>
# resynced with Arch's version from https://projects.archlinux.org/svntogit/community.git/tree/trunk/PKGBUILD?h=packages/lib32-llvm
# adjusted for Chakra

pkgname=('lib32-llvm' 'lib32-llvm-libs')
pkgver=3.5.0
pkgrel=1
arch=('x86_64')
url="http://llvm.org/"
license=('custom:University of Illinois/NCSA Open Source License')
makedepends=('lib32-libffi' 'lib32-zlib' 'python2' 'gcc-multilib')
options=('staticlibs')
source=(http://llvm.org/releases/$pkgver/llvm-$pkgver.src.tar.xz{,.sig}
        http://llvm.org/releases/$pkgver/compiler-rt-$pkgver.src.tar.xz{,.sig}
        llvm-3.5.0-force-link-pass.o.patch)
sha256sums=('28e199f368ef0a4666708f31c7991ad3bcc3a578342b0306526dd35f07595c03'
            'SKIP'
            'a4b3e655832bf8d9a357ea2c771db347237460e131988cbb96cda40ff39a8136'
            'SKIP'
            '5702053503d49448598eda1b8dc8c263f0df9ad7486833273e3987b5dec25a19')

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

  mv "$srcdir/compiler-rt-$pkgver.src" projects/compiler-rt

  # Fix installation directories, ./configure doesn't seem to set them right
  sed -i -e 's:\$(PROJ_prefix)/lib:$(PROJ_prefix)/lib32:' \
         -e 's:\$(PROJ_prefix)/docs/llvm:$(PROJ_prefix)/share/doc/llvm:' \
    Makefile.config.in
  sed -i '/ActiveLibDir = ActivePrefix/s:lib:lib32:' \
    tools/llvm-config/llvm-config.cpp
  sed -i 's:LLVM_LIBDIR="${prefix}/lib":LLVM_LIBDIR="${prefix}/lib32":' \
    autoconf/configure.ac \
    configure

  # Fix build with GCC 4.9 (patch from Debian)
  # http://llvm.org/bugs/show_bug.cgi?id=20067
  patch -Np1 -i "$srcdir/llvm-3.5.0-force-link-pass.o.patch"
}

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

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

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

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

  # We had to force host and target to get
  # a proper triplet reported by llvm

  ./configure \
    --prefix=/usr \
    --libdir=/usr/lib32 \
    --sysconfdir=/etc \
    --enable-shared \
    --enable-libffi \
    --enable-targets=all \
    --disable-expensive-checks \
    --disable-debug-runtime \
    --disable-assertions \
    --with-binutils-include=/usr/include \
    --with-python=/usr/bin/python2 \
    --build=i686-pc-linux-gnu \
    --host=i686-pc-linux-gnu \
    --$_optimized_switch-optimized

  make REQUIRES_RTTI=1
}

package_lib32-llvm() {
  pkgdesc="Low Level Virtual Machine (32-bit)"
  depends=('lib32-llvm-libs' "llvm=${pkgver}")

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

  make DESTDIR="$pkgdir" install

  # The runtime library goes into lib32-llvm-libs
  mv "$pkgdir/usr/lib32/libLLVM-$pkgver.so" "$srcdir/"
  mv "$pkgdir/usr/lib32/libLLVM-${pkgver%.*}.so" "$srcdir/"

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

  mv "$pkgdir/usr/bin/llvm-config" "$pkgdir/usr/lib32/llvm-config"

  # Get rid of example Hello transformation
  rm "$pkgdir"/usr/lib32/*LLVMHello.*

  # Symlink LLVMgold.so from /usr/lib32/bfd-plugins
  # https://bugs.archlinux.org/task/28479
  install -d "$pkgdir/usr/lib32/bfd-plugins"
  ln -s ../LLVMgold.so "$pkgdir/usr/lib32/bfd-plugins/LLVMgold.so"

  mv "$pkgdir"/usr/include/llvm/Config/*config.h "$pkgdir/"
  rm -rf "$pkgdir"/usr/{bin,include,share/{doc,man,llvm}}

  install -d "$pkgdir/usr/include/llvm/Config"
  mv "$pkgdir/config.h" "$pkgdir/usr/include/llvm/Config/config-32.h"
  mv "$pkgdir/llvm-config.h" "$pkgdir/usr/include/llvm/Config/llvm-config-32.h"

  mkdir "$pkgdir"/usr/bin
  mv "$pkgdir/usr/lib32/llvm-config" "$pkgdir/usr/bin/llvm-config32"

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

package_lib32-llvm-libs() {
  pkgdesc="Low Level Virtual Machine (runtime library)(32-bit)"
  depends=('lib32-libffi' 'lib32-zlib' 'lib32-gcc-libs')

  cd "$srcdir"

  install -d "$pkgdir/usr/lib32"
  cp -P libLLVM-$pkgver.so libLLVM-${pkgver%.*}.so "$pkgdir/usr/lib32/"

  install -Dm644 llvm-$pkgver.src/LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
}

# vim:set ts=2 sw=2 et: