# Contributor: Sebastian Nowicki <sebnow@gmail.com>
# 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>

pkgbase=llvm-clang
pkgname=(llvm clang clang-analyzer)
pkgver=2.6
pkgrel=1
arch=('i686' 'x86_64')
url="http://llvm.org"
license=('custom':'University of Illinois/NCSA Open Source License')
depends=('libelf')
source=("http://llvm.org/releases/$pkgver/llvm-$pkgver.tar.gz"
	"http://llvm.org/releases/$pkgver/clang-$pkgver.tar.gz")
md5sums=('1e67152a233c4c5261fbb8ee3c2080a7'
         '3ccd18fc66892880ec3c3bac90a16ada')

build() {
  cd "$srcdir/llvm-$pkgver"
  cp -R "$srcdir/clang-$pkgver" tools/clang

  # --sysconfdir to configure apparently isn't enough ...
  sed -i 's:$(PROJ_prefix)/etc/llvm:/etc/llvm:' Makefile.config.in || return 1
  # --libdir to configure apparently isn't enough ...
  sed -i 's:$(PROJ_prefix)/lib:$(PROJ_prefix)/lib/llvm:' \
    Makefile.config.in || return 1
  # Fix insecure rpath http://bugs.archlinux.org/task/14017
  sed -i 's:-rpath \$(ToolDir)::g' Makefile.rules || return 1
  # Fix path that point to the build directory
  sed -i 's:^TOOLDIR.*:TOOLDIR=/usr/bin:' \
    tools/gccld/gccld.sh tools/gccas/gccas.sh || return 1
  # remove docs from the make targets
  sed -i 's:runtime docs:runtime:' Makefile || return 1
  # remove libHello transformation
  sed -i 's: Hello::' lib/Transforms/Makefile || return 1

  if [ "${CARCH}" = "x86_64" ]; then
    _pic_flag="--enable-pic"
  else
    _pic_flag=""
  fi
  
  ./configure --prefix=/usr \
    --libdir=/usr/lib/llvm \
    --sysconfdir=/etc \
    --enable-bindings=none \
    --enable-targets=host-only \
    --enable-optimized \
    --disable-assertions \
    --disable-expensive-checks ${_pic_flag} || return 1
  
  make || return 1
}

package_llvm() {
  pkgdesc="Low Level Virtual Machine"

  cd "$srcdir/llvm-$pkgver"

  # install fails with more than one make job
  make -j1 DESTDIR="$pkgdir" install || return 1

  # Fix libpath in llvm-config
  sed -i 's:\(ABS_RUN_DIR/lib\):\1/llvm:' \
    "$pkgdir/usr/bin/llvm-config" || return 1

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

  mkdir -p "$pkgdir/usr/share/doc"
  mv "$pkgdir/usr/docs/llvm" "$pkgdir/usr/share/doc"

  # Remove clang (there should be a better way)
  rm -f "$pkgdir/usr/bin/clang"
  rm -f "$pkgdir/usr/libexec/clang-cc"
  rm -f "$pkgdir/usr/share/doc/llvm/ps/clang.ps"
  rm -rf "$pkgdir/usr/share/man/"
  rm -rf "$pkgdir/usr/share/doc/llvm/html/clang"
  rm -rf "$pkgdir/usr/include/clang"
  rm -rf "$pkgdir/usr/lib/clang"
}

package_clang() {
  pkgdesc="A C, C++, Objective-C and Objective-CC front-end for the LLVM compiler"
  url="http://clang.llvm.org/"
  depends=(llvm)

  cd "$srcdir/llvm-$pkgver/tools/clang"

  # install fails with more than one make job
  make -j1 DESTDIR="$pkgdir" install || return 1
  install -Dm644 "$srcdir/llvm-$pkgver/LICENSE.TXT" \
    "$pkgdir/usr/share/licenses/clang/LICENSE"

  mkdir -p "$pkgdir/usr/share/doc/clang"
  mv "$pkgdir/usr/docs/llvm/html/clang" \
    "$pkgdir/usr/share/doc/clang/html"
  rm -rf "$pkgdir/usr/docs"
}

package_clang-analyzer() {
  pkgdesc="A source code analysis framework"
  url="http://clang-analyzer.llvm.org/"
  depends=("clang=$pkgver" "python")

  cd "$srcdir/llvm-$pkgver/tools/clang/utils"

  mkdir -p "$pkgdir/usr/bin/"
  mkdir -p "$pkgdir/usr/lib/clang-analyzer/libexec"

  # Link clang-cc for scan-build to find
  ln -s /usr/libexec/clang-cc \
    "$pkgdir/usr/lib/clang-analyzer/libexec/" || return 1
  install -m755 ccc-analyzer \
    "$pkgdir/usr/lib/clang-analyzer/libexec/" || return 1
  install -m755 scan-build \
    "$pkgdir/usr/lib/clang-analyzer/" || return 1
  install -m644 scanview.css sorttable.js \
    "$pkgdir/usr/lib/clang-analyzer/" || return 1

  cp -pr ../tools/scan-view/* "$pkgdir/usr/lib/clang-analyzer/" || return 1

  ln -s "/usr/lib/clang-analyzer/scan-build" \
    "$pkgdir/usr/bin/" || return 1
  ln -s "/usr/lib/clang-analyzer/scan-view" \
    "$pkgdir/usr/bin/" || return 1
}