# Maintainer: Llewelyn Trahaearn <woefulderelict [at] gmail [dot] com>
# Contributor: Daniel Micay <danielmicay [at] gmail [dot] com>
# Contributor: MThinkCpp <mtc [dot] maintainer [at] outlook [dot] com>

pkgbase=libc++
pkgname=(${pkgbase}{,abi,experimental})
pkgver=7.0.1
pkgrel=2
url="https://libcxx.llvm.org/"
license=('MIT' 'custom:University of Illinois/NCSA Open Source License')
arch=('i686' 'x86_64')
depends=('gcc-libs')
makedepends=('clang' 'cmake' 'ninja' 'python' 'libunwind')
source=("https://releases.llvm.org/$pkgver/llvm-$pkgver.src.tar.xz"{,.sig}
        "https://releases.llvm.org/$pkgver/libcxx-$pkgver.src.tar.xz"{,.sig}
        "https://releases.llvm.org/$pkgver/libcxxabi-$pkgver.src.tar.xz"{,.sig})
noextract=("${source[@]##*/}")
sha512sums=('ac43a3cb71a53deb55e3693653847cf20bf6f5d9056f224e6956c96d63bc59ebee9404f088eec9cabe65337b4607a905ef931354b373cf64e0004c6905a6b5df'
            'SKIP'
            'b3ad7ad95bdcf2d902b29de8a0b757d4dbc220bc1a22a813d6bcec15a34b3aa42e85c59f4cecbb318c799ca611550b44c328b37278f4349b984016ad4556c1d8'
            'SKIP'
            '92e8d28f329e9a8cce296f0fddd88324198f722db3a748bb2164b28ae8eca6047c89ed1e70af00bbedd93ce4285b2ab1e0307a65b88dc60e581eebfd6cbd2038'
            'SKIP')
validpgpkeys=('474E22316ABF4785A88C6E8EA2C794A986419D8A') # Tom Stellard <tstellar@redhat.com> (.1 releases)              # Hans Wennborg <hans@chromium.org> (.0 releases)
validpgpkeys+=('B6C8F98282B944E3B0D5C2530FC3042E345AD05D') # Hans Wennborg <hans@chromium.org> (.0 releases)
 
prepare() {
  mkdir -p build llvm/projects/libcxx llvm/projects/libcxxabi
  bsdtar --strip-components 1 -zxf "${source[0]##*/}" -C llvm
  bsdtar --strip-components 1 -zxf "${source[2]##*/}" -C llvm/projects/libcxx
  bsdtar --strip-components 1 -zxf "${source[4]##*/}" -C llvm/projects/libcxxabi
  sed -i 's/CREDITS.TXT/CREDITS/' llvm/projects/libcxx/LICENSE.TXT llvm/projects/libcxxabi/LICENSE.TXT
}
 
build() {
  cd build
  cmake \
    -G Ninja \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_C_COMPILER=clang \
    -DCMAKE_CXX_COMPILER=clang++ \
    -DLIBCXX_INSTALL_EXPERIMENTAL_LIBRARY=NO \
    -DLIBCXX_INSTALL_FILESYSTEM_LIBRARY=NO \
    "$srcdir"/llvm
  ninja cxx cxx_experimental cxx_filesystem
}

check() {
  cd build
  ninja check-cxx check-cxxabi
}

package_libc++() {
  pkgdesc='LLVM C++ standard library.'
  depends=("libc++abi=$pkgver-$pkgrel")
  options=('staticlibs')

  cd build
  DESTDIR="$pkgdir" ninja install-libcxx

  # Remove ABI and experimental headers.
  rm -rf "$pkgdir"/usr/include/c++/v1/cxxabi.h "$pkgdir"/usr/include/c++/v1/__cxxabi_config.h "$pkgdir"/usr/include/c++/v1/experimental

  # License.
  install -Dm0644 "$srcdir"/llvm/projects/libcxx/CREDITS.TXT "$pkgdir"/usr/share/licenses/"$pkgname"/CREDITS
  install -Dm0644 "$srcdir"/llvm/projects/libcxx/LICENSE.TXT "$pkgdir"/usr/share/licenses/"$pkgname"/LICENSE
}
 
package_libc++abi() {
  pkgdesc='Low level support for the LLVM C++ standard library.'
  options=('staticlibs')
  
  cd build
  DESTDIR="$pkgdir" ninja install-libcxxabi
  install -Dm0644 -t "$pkgdir"/usr/include/c++/v1 include/c++/v1/cxxabi.h include/c++/v1/__cxxabi_config.h
  install -Dm0644 "$srcdir"/llvm/projects/libcxxabi/CREDITS.TXT "$pkgdir"/usr/share/licenses/"$pkgname"/CREDITS
  install -Dm0644 "$srcdir"/llvm/projects/libcxxabi/LICENSE.TXT "$pkgdir"/usr/share/licenses/"$pkgname"/LICENSE
}
 
package_libc++experimental() {
  depends=("libc++=$pkgver-$pkgrel")
  pkgdesc='LLVM C++ experimental library.'
  
  install -Dm0644 -t "$pkgdir"/usr/lib/ build/lib/libc++experimental.a build/lib/libc++fs.a
  install -Dm0644 -t "$pkgdir"/usr/include/c++/v1/experimental build/include/c++/v1/experimental/*
  install -Dm0644 llvm/projects/libcxx/CREDITS.TXT "$pkgdir"/usr/share/licenses/"$pkgname"/CREDITS
  install -Dm0644 llvm/projects/libcxx/LICENSE.TXT "$pkgdir"/usr/share/licenses/"$pkgname"/LICENSE
}