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# The MIT License (MIT)
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#
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# Copyright (c) 2015 Justus Calvin
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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# FindTBB
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# -------
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#
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# Find TBB include directories and libraries.
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#
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# Usage:
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#
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# find_package(TBB [major[.minor]] [EXACT]
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# [QUIET] [REQUIRED]
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# [[COMPONENTS] [components...]]
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# [OPTIONAL_COMPONENTS components...])
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#
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# where the allowed components are tbbmalloc and tbb_preview. Users may modify
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# the behavior of this module with the following variables:
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#
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# * TBB_ROOT_DIR - The base directory the of TBB installation.
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# * TBB_INCLUDE_DIR - The directory that contains the TBB headers files.
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# * TBB_LIBRARY - The directory that contains the TBB library files.
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# * TBB_<library>_LIBRARY - The path of the TBB the corresponding TBB library.
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# These libraries, if specified, override the
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# corresponding library search results, where <library>
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# may be tbb, tbb_debug, tbbmalloc, tbbmalloc_debug,
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# tbb_preview, or tbb_preview_debug.
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# * TBB_USE_DEBUG_BUILD - The debug version of tbb libraries, if present, will
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# be used instead of the release version.
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#
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# Users may modify the behavior of this module with the following environment
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# variables:
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#
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# * TBB_INSTALL_DIR
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# * TBBROOT
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# * LIBRARY_PATH
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#
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# This module will set the following variables:
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#
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# * TBB_FOUND - Set to false, or undefined, if we haven’t found, or
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# don’t want to use TBB.
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# * TBB_<component>_FOUND - If False, optional <component> part of TBB sytem is
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# not available.
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# * TBB_VERSION - The full version string
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# * TBB_VERSION_MAJOR - The major version
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# * TBB_VERSION_MINOR - The minor version
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# * TBB_INTERFACE_VERSION - The interface version number defined in
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# tbb/tbb_stddef.h.
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# * TBB_<library>_LIBRARY_RELEASE - The path of the TBB release version of
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# <library>, where <library> may be tbb, tbb_debug,
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# tbbmalloc, tbbmalloc_debug, tbb_preview, or
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# tbb_preview_debug.
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# * TBB_<library>_LIBRARY_DEGUG - The path of the TBB release version of
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# <library>, where <library> may be tbb, tbb_debug,
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# tbbmalloc, tbbmalloc_debug, tbb_preview, or
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# tbb_preview_debug.
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#
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# The following varibles should be used to build and link with TBB:
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#
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# * TBB_INCLUDE_DIRS - The include directory for TBB.
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# * TBB_LIBRARIES - The libraries to link against to use TBB.
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# * TBB_DEFINITIONS - Definitions to use when compiling code that uses TBB.
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include(FindPackageHandleStandardArgs)
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if(NOT TBB_FOUND)
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##################################
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# Check the build type
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##################################
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if(NOT DEFINED TBB_USE_DEBUG_BUILD)
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if(CMAKE_BUILD_TYPE MATCHES "(Debug|DEBUG|debug|RelWithDebInfo|RELWITHDEBINFO|relwithdebinfo)")
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set(TBB_USE_DEBUG_BUILD TRUE)
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else()
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set(TBB_USE_DEBUG_BUILD FALSE)
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endif()
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endif()
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##################################
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# Set the TBB search directories
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##################################
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# Define search paths based on user input and environment variables
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set(TBB_SEARCH_DIR ${TBB_ROOT_DIR} $ENV{TBB_INSTALL_DIR} $ENV{TBBROOT})
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# Define the search directories based on the current platform
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if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
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set(TBB_DEFAULT_SEARCH_DIR "C:/Program Files/Intel/TBB"
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"C:/Program Files (x86)/Intel/TBB")
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# Set the target architecture
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(TBB_ARCHITECTURE "intel64")
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else()
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set(TBB_ARCHITECTURE "ia32")
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endif()
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# Set the TBB search library path search suffix based on the version of VC
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if(WINDOWS_STORE)
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set(TBB_LIB_PATH_SUFFIX "lib/${TBB_ARCHITECTURE}/vc11_ui")
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elseif(MSVC14)
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set(TBB_LIB_PATH_SUFFIX "lib/${TBB_ARCHITECTURE}/vc14")
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elseif(MSVC12)
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set(TBB_LIB_PATH_SUFFIX "lib/${TBB_ARCHITECTURE}/vc12")
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elseif(MSVC11)
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set(TBB_LIB_PATH_SUFFIX "lib/${TBB_ARCHITECTURE}/vc11")
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elseif(MSVC10)
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set(TBB_LIB_PATH_SUFFIX "lib/${TBB_ARCHITECTURE}/vc10")
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endif()
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# Add the library path search suffix for the VC independent version of TBB
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list(APPEND TBB_LIB_PATH_SUFFIX "lib/${TBB_ARCHITECTURE}/vc_mt")
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elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
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# OS X
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set(TBB_DEFAULT_SEARCH_DIR "/opt/intel/tbb")
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# TODO: Check to see which C++ library is being used by the compiler.
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if(NOT ${CMAKE_SYSTEM_VERSION} VERSION_LESS 13.0)
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# The default C++ library on OS X 10.9 and later is libc++
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set(TBB_LIB_PATH_SUFFIX "lib/libc++")
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else()
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set(TBB_LIB_PATH_SUFFIX "lib")
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endif()
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elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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# Linux
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set(TBB_DEFAULT_SEARCH_DIR "/opt/intel/tbb")
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# TODO: Check compiler version to see the suffix should be <arch>/gcc4.1 or
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# <arch>/gcc4.1. For now, assume that the compiler is more recent than
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# gcc 4.4.x or later.
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if(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
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set(TBB_LIB_PATH_SUFFIX "lib/intel64/gcc4.4")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$")
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set(TBB_LIB_PATH_SUFFIX "lib/ia32/gcc4.4")
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endif()
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endif()
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##################################
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# Find the TBB include dir
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##################################
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find_path(TBB_INCLUDE_DIRS tbb/tbb.h
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HINTS ${TBB_INCLUDE_DIR} ${TBB_SEARCH_DIR}
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PATHS ${TBB_DEFAULT_SEARCH_DIR}
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PATH_SUFFIXES include)
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##################################
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# Find TBB components
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##################################
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# Find each component
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foreach(_comp tbb_preview tbbmalloc tbb)
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# Search for the libraries
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find_library(TBB_${_comp}_LIBRARY_RELEASE ${_comp}
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HINTS ${TBB_LIBRARY} ${TBB_SEARCH_DIR}
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PATHS ${TBB_DEFAULT_SEARCH_DIR}
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PATH_SUFFIXES ${TBB_LIB_PATH_SUFFIX})
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find_library(TBB_${_comp}_LIBRARY_DEBUG ${_comp}_debug
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HINTS ${TBB_LIBRARY} ${TBB_SEARCH_DIR}
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PATHS ${TBB_DEFAULT_SEARCH_DIR} ENV LIBRARY_PATH
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PATH_SUFFIXES ${TBB_LIB_PATH_SUFFIX})
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# Set the library to be used for the component
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if(NOT TBB_${_comp}_LIBRARY)
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if(TBB_USE_DEBUG_BUILD AND TBB_${_comp}_LIBRARY_DEBUG)
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set(TBB_${_comp}_LIBRARY "${TBB_${_comp}_LIBRARY_DEBUG}")
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elseif(TBB_${_comp}_LIBRARY_RELEASE)
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set(TBB_${_comp}_LIBRARY "${TBB_${_comp}_LIBRARY_RELEASE}")
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elseif(TBB_${_comp}_LIBRARY_DEBUG)
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set(TBB_${_comp}_LIBRARY "${TBB_${_comp}_LIBRARY_DEBUG}")
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endif()
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endif()
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# Set the TBB library list and component found variables
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if(TBB_${_comp}_LIBRARY)
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list(APPEND TBB_LIBRARIES "${TBB_${_comp}_LIBRARY}")
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set(TBB_${_comp}_FOUND TRUE)
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else()
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set(TBB_${_comp}_FOUND FALSE)
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endif()
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mark_as_advanced(TBB_${_comp}_LIBRARY_RELEASE)
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mark_as_advanced(TBB_${_comp}_LIBRARY_DEBUG)
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mark_as_advanced(TBB_${_comp}_LIBRARY)
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endforeach()
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##################################
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# Set compile flags
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##################################
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if(TBB_tbb_LIBRARY MATCHES "debug")
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set(TBB_DEFINITIONS "-DTBB_USE_DEBUG=1")
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endif()
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##################################
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# Set version strings
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##################################
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if(TBB_INCLUDE_DIRS)
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file(READ "${TBB_INCLUDE_DIRS}/tbb/tbb_stddef.h" _tbb_version_file)
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string(REGEX REPLACE ".*#define TBB_VERSION_MAJOR ([0-9]+).*" "\\1"
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TBB_VERSION_MAJOR "${_tbb_version_file}")
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string(REGEX REPLACE ".*#define TBB_VERSION_MINOR ([0-9]+).*" "\\1"
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TBB_VERSION_MINOR "${_tbb_version_file}")
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string(REGEX REPLACE ".*#define TBB_INTERFACE_VERSION ([0-9]+).*" "\\1"
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TBB_INTERFACE_VERSION "${_tbb_version_file}")
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set(TBB_VERSION "${TBB_VERSION_MAJOR}.${TBB_VERSION_MINOR}")
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endif()
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find_package_handle_standard_args(TBB
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REQUIRED_VARS TBB_INCLUDE_DIRS TBB_LIBRARIES
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HANDLE_COMPONENTS
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VERSION_VAR TBB_VERSION)
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mark_as_advanced(TBB_INCLUDE_DIRS TBB_LIBRARIES)
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unset(TBB_ARCHITECTURE)
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unset(TBB_LIB_PATH_SUFFIX)
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unset(TBB_DEFAULT_SEARCH_DIR)
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endif()
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