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Add cmake superbuild for embree deps
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‎.github/workflows/public.continuous.yml‎

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@@ -68,4 +68,32 @@ jobs:
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run: |
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cmake --preset public-gcc-tbb -DEMBREE_TESTING_INTENSITY=3
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cmake --build build --target build
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cmake --build build --target test_package
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cmake --build build --target test_package
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ubuntu-24_04-superbuild:
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runs-on: ubuntu-latest
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container:
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image: ubuntu:24.04
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steps:
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- name: Install packages (ubuntu 24.04)
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run: |
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apt-get update
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apt-get -y upgrade
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apt-get -y install g++ python3 git-lfs freeglut3-dev libglfw3-dev libxmu-dev libxi-dev unzip xorg-dev pip
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apt-get -y install libtinfo5
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apt-get -y install libopenimageio-dev
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pip install --upgrade cmake
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cmake --version
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- name: Checkout Repository
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uses: actions/checkout@v4
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- name: Build and Run
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run: |
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mkdir build
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cd build
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cmake -DEMBREE_EXTRA_OPTIONS="-DBUILD_TESTING=ON -DEMBREE_TUTORIALS=ON -DEMBREE_ISPC_SUPPORT=ON -DEMBREE_TESTING_INTENSITY=3" ../superbuild
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cmake --build .
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cd embree/build
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ctest

‎superbuild/CMakeLists.txt‎

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## Copyright 2025 Intel Corporation
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## SPDX-License-Identifier: Apache-2.0
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## Global settings ##
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cmake_minimum_required(VERSION 3.1)
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set(CMAKE_MODULE_PATH
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${CMAKE_MODULE_PATH}
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${CMAKE_CURRENT_SOURCE_DIR}/dependencies
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)
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if(NOT CMAKE_INSTALL_PREFIX)
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set(CMAKE_INSTALL_PREFIX
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"${CMAKE_BINARY_DIR}/install"
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CACHE STRING "Final install location." FORCE)
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endif()
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if (NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif()
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## ======================================================================== ##
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## Project setup.
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## ======================================================================== ##
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project(Embree_superbuild)
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include(ExternalProject)
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include(GNUInstallDirs)
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include(ProcessorCount)
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## Setup top-level variables ##
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set(installDir ${CMAKE_INSTALL_PREFIX})
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get_filename_component(INSTALL_DIR_ABSOLUTE
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${installDir} ABSOLUTE BASE_DIR ${CMAKE_CURRENT_BINARY_DIR})
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ProcessorCount(PROCESSOR_COUNT)
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if(NOT PROCESSOR_COUNT EQUAL 0)
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set(BUILD_JOBS ${PROCESSOR_COUNT} CACHE STRING "Number of build jobs '-j <n>'")
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else()
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set(BUILD_JOBS 4 CACHE STRING "Number of build jobs '-j <n>'")
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endif()
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if (${CMAKE_VERSION} VERSION_GREATER 3.11.4)
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set(PARALLEL_JOBS_OPTS -j ${BUILD_JOBS})
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endif()
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set(DEFAULT_BUILD_COMMAND ${CMAKE_COMMAND} --build . --config Release ${PARALLEL_JOBS_OPTS})
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# We must replace separators so that ExternalProject_Add can work with the
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# paths we generate.
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macro(add_to_prefix_path PATH)
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list(APPEND CMAKE_PREFIX_PATH ${PATH})
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string(REPLACE ";" "|" CMAKE_PREFIX_PATH "${CMAKE_PREFIX_PATH}")
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endmacro()
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## ======================================================================== ##
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## Superbuild options.
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## ======================================================================== ##
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option(INSTALL_IN_SEPARATE_DIRECTORIES
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"Install libraries into their own directories under CMAKE_INSTALL_PREFIX"
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OFF
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)
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option(BUILD_DEPENDENCIES_ONLY
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"Do not build Embree itself, only its dependencies"
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OFF
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)
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## ======================================================================== ##
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## Build dependencies.
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##
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## Use the BUILD_* options to enable or disable building in superbuild. If
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## These options are OFF, then required dependencies must be available in the
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## environment.
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##
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## For most of the dependencies, you may override the *_URL and *_HASH
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## variables to select different versions.
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## ======================================================================== ##
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option(BUILD_ISPC "Build the Intel SPMD Program Compiler or search in environment?" ON)
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if (BUILD_ISPC)
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set(ISPC_VERSION "1.28.2")
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set(ISPC_BASE_URL "https://github.com/ispc/ispc/releases/download/v${ISPC_VERSION}")
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if (APPLE)
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set(_ISPC_URL "${ISPC_BASE_URL}/ispc-v${ISPC_VERSION}-macOS.universal.tar.gz")
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set(_ISPC_HASH "9c5893cbb5fd0b04cf5109a027bcbe8f8ca54bc8f7eaf468ce0bc13a9b0e06bd")
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elseif(WIN32)
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set(_ISPC_URL "${ISPC_BASE_URL}/ispc-v${ISPC_VERSION}-windows.zip")
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set(_ISPC_HASH "709350902381968ee58fd67e9aed63df99b1313bc55a94195977bcc8d90bdced")
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else()
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set(_ISPC_URL "${ISPC_BASE_URL}/ispc-v${ISPC_VERSION}-linux.tar.gz")
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set(_ISPC_HASH "fc31f53f77a67cb5b465727b70af7d6cde8f38012c4ca0f1678b174a955cb5a8")
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endif()
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set(ISPC_URL "${_ISPC_URL}" CACHE STRING "URL of the ISPC archive.")
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set(ISPC_HASH "${_ISPC_HASH}" CACHE STRING "SHA256 hash of the ISPC archive.")
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include(dep_ispc)
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endif()
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option(BUILD_TBB "Build Intel Threading Building Blocks or search in environment?" ON)
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option(BUILD_TBB_FROM_SOURCE "Build Intel Threading Building Blocks from source or use pre-built version?" OFF)
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if (BUILD_TBB)
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set(TBB_VERSION "2022.3.0" CACHE STRING "TBB version to download")
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if (BUILD_TBB_FROM_SOURCE)
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if (TBB_VERSION VERSION_LESS 2021)
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message(FATAL_ERROR "Only TBB 2021 and later are supported when building TBB from source")
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endif()
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string(REGEX REPLACE "(^[0-9]+\.[0-9]+\.[0-9]+$)" "v\\1" TBB_ARCHIVE ${TBB_VERSION})
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set(_TBB_URL "https://github.com/oneapi-src/oneTBB/archive/refs/tags/${TBB_ARCHIVE}.zip")
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set(_TBB_HASH "2f0bfce641d238e80798fc48397d43821bd977d49c4e03bc785be363b7ab4742")
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else()
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if (TBB_VERSION VERSION_LESS 2021)
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set(TBB_BASE_URL "https://github.com/oneapi-src/oneTBB/releases/download/v${TBB_VERSION}/tbb-${TBB_VERSION}")
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else()
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set(TBB_BASE_URL "https://github.com/oneapi-src/oneTBB/releases/download/v${TBB_VERSION}/oneapi-tbb-${TBB_VERSION}")
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endif()
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if (APPLE)
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set(_TBB_URL "${TBB_BASE_URL}-mac.tgz")
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set(_TBB_HASH "f9f9369e956bd1cb1efbe6eab400291970e55fad1f3ae2a33bc96d991882ed38")
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set(TBB_LIB_SUBDIR "")
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elseif(WIN32)
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set(_TBB_URL "${TBB_BASE_URL}-win.zip")
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set(_TBB_HASH "e1b2373f25558bf47d16b4c89cf0a31e6689aaf7221400d209e8527afc7c9eee")
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set(TBB_LIB_SUBDIR "intel64/vc14")
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else()
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set(_TBB_URL "${TBB_BASE_URL}-lin.tgz")
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set(_TBB_HASH "7be34b376c9bdba9afe1ebacaf94ed6dc15af8377d73b539ec932f141195f6ec")
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set(TBB_LIB_SUBDIR "intel64/gcc4.8")
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endif()
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endif()
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set(TBB_URL "${_TBB_URL}" CACHE STRING "URL of the TBB archive.")
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set(TBB_HASH "${_TBB_HASH}" CACHE STRING "SHA256 hash of the TBB archive.")
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include(dep_tbb)
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endif()
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## ======================================================================== ##
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## Build Embree
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## ======================================================================== ##
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set(COMPONENT_NAME embree)
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set(COMPONENT_PATH ${INSTALL_DIR_ABSOLUTE})
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if (INSTALL_IN_SEPARATE_DIRECTORIES)
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set(COMPONENT_PATH ${INSTALL_DIR_ABSOLUTE}/${COMPONENT_NAME})
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endif()
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if (NOT BUILD_DEPENDENCIES_ONLY)
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# needed to support multiple CMake options provided in a single quoted string
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separate_arguments(EMBREE_EXTRA_OPTIONS UNIX_COMMAND "${EMBREE_EXTRA_OPTIONS}")
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ExternalProject_Add(embree
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PREFIX embree
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DOWNLOAD_COMMAND ""
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STAMP_DIR embree/stamp
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SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/..
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BINARY_DIR embree/build
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LIST_SEPARATOR | # CMAKE_PREFIX_PATH uses alternate separator.
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CMAKE_ARGS
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-DCMAKE_PREFIX_PATH:PATH=${CMAKE_PREFIX_PATH}
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-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
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-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
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-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
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-DCMAKE_INSTALL_PREFIX=${COMPONENT_PATH}
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-DCMAKE_INSTALL_INCLUDEDIR=${CMAKE_INSTALL_INCLUDEDIR}
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-DCMAKE_INSTALL_LIBDIR=${CMAKE_INSTALL_LIBDIR}
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-DCMAKE_INSTALL_DOCDIR=${CMAKE_INSTALL_DOCDIR}
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-DCMAKE_INSTALL_BINDIR=${CMAKE_INSTALL_BINDIR}
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$<$<BOOL:${BUILD_ISPC}>:-DEMBREE_ISPC_EXECUTABLE=${ISPC_PATH}>
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$<$<BOOL:${BUILD_TBB}>:-DEMBREE_TBB_ROOT=${TBB_PATH}>
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${EMBREE_EXTRA_OPTIONS}
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BUILD_COMMAND ${DEFAULT_BUILD_COMMAND}
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BUILD_ALWAYS OFF
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)
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ExternalProject_Add_StepDependencies(embree
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configure
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$<$<BOOL:${BUILD_ISPC}>:ispc>
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$<$<BOOL:${BUILD_TBB}>:tbb>
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)
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endif()

‎superbuild/dependencies/dep_ispc.cmake‎

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## Copyright 2019 Intel Corporation
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## SPDX-License-Identifier: Apache-2.0
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set(COMPONENT_NAME ispc)
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set(COMPONENT_PATH ${INSTALL_DIR_ABSOLUTE})
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if (INSTALL_IN_SEPARATE_DIRECTORIES)
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set(COMPONENT_PATH ${INSTALL_DIR_ABSOLUTE}/${COMPONENT_NAME})
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endif()
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ExternalProject_Add(${COMPONENT_NAME}
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PREFIX ${COMPONENT_NAME}
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STAMP_DIR ${COMPONENT_NAME}/stamp
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URL ${ISPC_URL}
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URL_HASH SHA256=${ISPC_HASH}
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CONFIGURE_COMMAND ""
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BUILD_COMMAND ""
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INSTALL_COMMAND "${CMAKE_COMMAND}" -E copy_if_different
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<SOURCE_DIR>/bin/ispc${CMAKE_EXECUTABLE_SUFFIX}
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${COMPONENT_PATH}/bin/ispc${CMAKE_EXECUTABLE_SUFFIX}
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BUILD_ALWAYS OFF
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)
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set(ISPC_PATH "${COMPONENT_PATH}/bin/ispc${CMAKE_EXECUTABLE_SUFFIX}")

‎superbuild/dependencies/dep_tbb.cmake‎

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## Copyright 2019 Intel Corporation
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## SPDX-License-Identifier: Apache-2.0
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set(COMPONENT_NAME tbb)
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set(COMPONENT_PATH ${INSTALL_DIR_ABSOLUTE})
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if (INSTALL_IN_SEPARATE_DIRECTORIES)
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set(COMPONENT_PATH ${INSTALL_DIR_ABSOLUTE}/${COMPONENT_NAME})
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endif()
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set(TBB_HASH_ARGS "")
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if (NOT "${TBB_HASH}" STREQUAL "")
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set(TBB_HASH_ARGS URL_HASH SHA256=${TBB_HASH})
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endif()
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if (BUILD_TBB_FROM_SOURCE)
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ExternalProject_Add(${COMPONENT_NAME}
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PREFIX ${COMPONENT_NAME}
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DOWNLOAD_DIR ${COMPONENT_NAME}
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STAMP_DIR ${COMPONENT_NAME}/stamp
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SOURCE_DIR ${COMPONENT_NAME}/src
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BINARY_DIR ${COMPONENT_NAME}/build
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LIST_SEPARATOR | # Use the alternate list separator
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URL ${TBB_URL}
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${TBB_HASH_ARGS}
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CMAKE_ARGS
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-DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}
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-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
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-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
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-DCMAKE_INSTALL_PREFIX:PATH=${COMPONENT_PATH}
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-DCMAKE_INSTALL_INCLUDEDIR=${CMAKE_INSTALL_INCLUDEDIR}
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-DCMAKE_INSTALL_LIBDIR=${CMAKE_INSTALL_LIBDIR}
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-DCMAKE_INSTALL_DOCDIR=${CMAKE_INSTALL_DOCDIR}
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-DCMAKE_INSTALL_BINDIR=${CMAKE_INSTALL_BINDIR}
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-DCMAKE_BUILD_TYPE=${DEPENDENCIES_BUILD_TYPE}
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-DTBB_TEST=OFF
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-DTBB_STRICT=OFF
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-DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES}
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-DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}
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BUILD_COMMAND ${DEFAULT_BUILD_COMMAND}
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BUILD_ALWAYS ${ALWAYS_REBUILD}
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)
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else()
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# handle changed paths in TBB 2021
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if (TBB_VERSION VERSION_LESS 2021)
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set(TBB_SOURCE_INCLUDE_DIR tbb/include)
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set(TBB_SOURCE_LIB_DIR tbb/lib/${TBB_LIB_SUBDIR})
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set(TBB_SOURCE_BIN_DIR tbb/bin/${TBB_LIB_SUBDIR})
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else()
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set(TBB_SOURCE_INCLUDE_DIR include)
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set(TBB_SOURCE_LIB_DIR lib/${TBB_LIB_SUBDIR})
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set(TBB_SOURCE_BIN_DIR redist/${TBB_LIB_SUBDIR})
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endif()
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ExternalProject_Add(${COMPONENT_NAME}
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PREFIX ${COMPONENT_NAME}
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DOWNLOAD_DIR ${COMPONENT_NAME}
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STAMP_DIR ${COMPONENT_NAME}/stamp
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SOURCE_DIR ${COMPONENT_NAME}/src
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BINARY_DIR ${COMPONENT_NAME}
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URL ${TBB_URL}
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${TBB_HASH_ARGS}
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CONFIGURE_COMMAND ""
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BUILD_COMMAND ""
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INSTALL_COMMAND "${CMAKE_COMMAND}" -E copy_directory
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<SOURCE_DIR>/${TBB_SOURCE_INCLUDE_DIR}
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${COMPONENT_PATH}/include
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BUILD_ALWAYS OFF
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)
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# We copy the libraries into the main lib dir. This makes it easier
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# to set the correct library path.
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ExternalProject_Add_Step(${COMPONENT_NAME} install_lib
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COMMAND "${CMAKE_COMMAND}" -E copy_directory
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<SOURCE_DIR>/${TBB_SOURCE_LIB_DIR} ${COMPONENT_PATH}/lib
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DEPENDEES install
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)
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if (WIN32)
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# DLLs on Windows are in the bin subdirectory.
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ExternalProject_Add_Step(${COMPONENT_NAME} install_dll
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COMMAND "${CMAKE_COMMAND}" -E copy_directory
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<SOURCE_DIR>/${TBB_SOURCE_BIN_DIR} ${COMPONENT_PATH}/bin
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DEPENDEES install_lib
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)
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endif()
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endif()
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set(TBB_PATH ${COMPONENT_PATH})
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add_to_prefix_path(${COMPONENT_PATH})

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