PKGBUILD


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# Maintainer: Alexandre Demers <alexandre.f.demers@gmail.com>

_setPrefix="/usr"
_setLibdir="lib32"
_setFullLibdir="${_setPrefix}/${_setLibdir}"
_pkgbasename=shaderc

pkgname=lib32-$_pkgbasename
pkgver=2023.3
pkgrel=2
pkgdesc='Collection of tools, libraries and tests for shader compilation (32bit)'
url='https://github.com/google/shaderc'
arch=('x86_64')
license=('Apache')
depends=(
        "$_pkgbasename>=$pkgver"
        'lib32-glibc'
        'lib32-gcc-libs'
        'lib32-glslang'
        'lib32-spirv-tools'
        )
makedepends=(
        'cmake'
        'ninja'
        'python'
        'spirv-headers'
        )
provides=('libshaderc_shared.so')
conflicts=('lib32-shaderc-git')
source=(
        "${_pkgbasename}-${pkgver}.tar.gz::https://github.com/google/shaderc/archive/v${pkgver}/${_pkgbasename}-${pkgver}.tar.gz"
        )
sha512sums=(
        'c6422383318b5d4d341e5b4215489ba03590aeff65fd03fb0b57aab8689c9002444f520a4017485645291777ee442979d22db52d843e66d4d672da2810b20e36'
        )
b2sums=(
        'a66de9fea6d2d48ead7e3cda2b4b03f437fa30f7efbbd2c0448baf93240703177e0bf537e5f8f856222a8c7767e69ba039b7d9929bcc66401cef6cc804c8b3dd'
        )

prepare() {
  cd ${_pkgbasename}-${pkgver}

  # de-vendor libs and disable git versioning
  sed '/examples/d;/third_party/d' -i CMakeLists.txt
  sed '/build-version/d' -i glslc/CMakeLists.txt
  cat <<- EOF > glslc/src/build-version.inc
"${pkgver}\\n"
"$(pacman -Q spirv-tools|cut -d \  -f 2|sed 's/-.*//')\\n"
"$(pacman -Q glslang|cut -d \  -f 2|sed 's/-.*//')\\n"
EOF
}

build() {
  export CC="gcc -m32"
  export CXX="g++ -m32"
  export PKG_CONFIG_PATH="/usr/lib32/pkgconfig"
#  export CFLAGS+=" ${CPPFLAGS}"
#  export CXXFLAGS+=" ${CPPFLAGS} -I/usr/include/glslang"

  cd ${_pkgbasename}-${pkgver}
  cmake \
      -B build \
      -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_INSTALL_PREFIX="/usr" \
      -DCMAKE_INSTALL_LIBDIR="lib32" \
      -DCMAKE_CXX_FLAGS="$CXXFLAGS -ffat-lto-objects" \
      -DSHADERC_SKIP_TESTS=ON \
      -Dglslang_SOURCE_DIR=/usr/include/glslang \
      -G Ninja
    ninja -C build

#  cd glslc
#  asciidoctor -b manpage README.asciidoc -o glslc.1
}

check() {
  cd ${_pkgbasename}-${pkgver}
  ninja -C build test
}

package() {
  cd ${_pkgbasename}-${pkgver}
  DESTDIR="${pkgdir}" ninja -C build install

  # Use the same naming scheme as the one in the lib32-shaderc-git package for coherence
  for i in "${pkgdir}/usr/bin/"*; do
    mv "$i" "$i"-32
  done

  rm -r "${pkgdir}"/usr/include
#  install -Dm 644 glslc/glslc.1 -t "${pkgdir}/usr/share/man/man1"
}