PKGBUILD


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

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

pkgname=lib32-$_pkgbasename
pkgver=2023.5
pkgrel=1
pkgdesc='Collection of tools, libraries and tests for shader compilation (32bit)'
url='https://github.com/google/shaderc'
arch=('x86_64')
license=('Apache')
depends=(
        "$_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=(
        'acda1bb35a30f7f47aeb356c2b513a16161147130e8d6d939640b0f5646799a0a134c2846f197fdb9b4d93e8460bf715ed03f70d7e7daeeb16231d61f7a1382f'
        )
b2sums=(
        '79ad4c249f1bc543aca89633c5754148a8ae0806d1a51bfd1c3e40aa99bb341cc4b0ad4a095d1fc1389eac077c25db57e5a1221f81a0728981ad62601f26f297'
        )

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"
}