# Maintainer: Márcio Silva <coadde@parabola.nu>
# based of Arch pkg

pkgname=openshadinglanguage
pkgver=1.4.1
pkgrel=2
pkgdesc="Advanced shading language for production GI renderers (built for the blender-libre package)"
arch=(
  mips64el
  x86_64
  i686
)
url=https://github.com/imageworks/OpenShadingLanguage
license=custom
depends=(
  openimageio
  openexr
  freetype2
  libpng
  libtiff
  boost-libs
  llvm
  zlib
)
makedepends=(
  boost
  clang
  cmake
)
source=(
  https://github.com/imageworks/OpenShadingLanguage/archive/Release-${pkgver}.tar.gz
  llvm-141.patch
)
sha512sums=(
  1c9d25e5a87d2e9578eb6b2b83e12da5ea81ae9586bf11b61e092e520f75d746a33465fd9529ea2c58090826bb74ddb2a14b1cb6f170440e9bb5d50984c74081
  597cd4a8d59e03e7cbe0eb9c2f988d81317d9bb0a65c1dc5f5db2fbb3be927b4c9e5342decd1409757787b9354dfdf3aa56fdeadcb8c25308aa5653dc9775ea1
)

prepare() {
  cd OpenShadingLanguage-Release-$pkgver

  msg 'renaming wrong OS name'
  _OS=$(uname -o)
  [[ $_OS == GNU ]] &&\
    sed -i 's|linux|GNU|i;
           ' src/{cmake/platform.cmake,make/detectplatform.mk}
  [[ $_OS == GNU/Linux ]] &&\
    sed -i 's|[{]uname[}][,]linux]|{uname -o},GNU/Linux|;\|platform| s|linux|GNU/Linux|i
           ' src/{cmake/platform.cmake,make/detectplatform.mk}
  [[ $_OS == GNU/kFreeBSD ]] &&\
    sed -i '\|STREQUAL| s|FreeBSD|kFreeBSD|;\|platform| s|freebsd|GNU/kFreeBSD|i
           ' src/cmake/platform.cmake
    sed -i 's|[{]uname[}][,]linux]|{uname -o},GNU/kFreeBSD|;\|platform| s|linux|GNU/kFreeBSD|i
           ' src/make/detectplatform.mk
  sed -i 's|Linux/OSX|GNU/BSD|' src/include/export.h
  
  # LLVM 3.4 build fix
  # based of "https://github.com/imageworks/OpenShadingLanguage/pull/320.patch"
  patch -Np1 < $srcdir/llvm-141.patch

  # fix include paths
  sed -i 's|oslconfig.h|../include/oslconfig.h|
          s|dual.h|../include/dual.h|
          s|dual_vec.h|../include/dual_vec.h|
         ' src/liboslexec/llvm_ops.cpp
  sed -i 's|oslexec.h|../include/oslexec.h|
          s|oslclosure.h|../include/oslclosure.h|
          s|osl_pvt.h|../include/osl_pvt.h|
         ' src/liboslexec/oslexec_pvt.h

  cd src

  [[ -d build ]] && rm -r build
  mkdir build
}

build() {
  cd OpenShadingLanguage-Release-$pkgver/src/build

  cmake ../.. \
    -DCMAKE_BUILD_TYPE=Release\
    -DCMAKE_INSTALL_PREFIX=/usr\
    -DLLVM_STATIC=OFF
  make
}

package() {
  cd OpenShadingLanguage-Release-$pkgver/src/build

  make DESTDIR=$pkgdir install

  mkdir -p $pkgdir/usr/share/OSL/
  mkdir -p $pkgdir/usr/share/licenses/$pkgname
  mv $pkgdir/usr/{CHANGES,README.md,INSTALL} $pkgdir/usr/share/OSL
  mv $pkgdir/usr/doc                         $pkgdir/usr/share/OSL/doc
  mv $pkgdir/usr/shaders                     $pkgdir/usr/share/OSL/shaders
  mv $pkgdir/usr/LICENSE                     $pkgdir/usr/share/licenses/$pkgname
}

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