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# - Try to find Intel TBB
# Input variables:
# TBB_ROOT_DIR - The TBB install directory
# TBB_INCLUDE_DIR - The TBB include directory
# TBB_LIBRARY - The TBB library directory
# Output variables:
# TBB_FOUND - System has TBB
# TBB_INCLUDE_DIRS - The tbb include directories
# TBB_LIBRARIES - The libraries needed to use TBB
# TBB_VERSION - The version string for TBB
include(FindPackageHandleStandardArgs)
if(NOT TBB_FOUND)
# Set default sarch paths for TBB
if(NOT TBB_ROOT_DIR AND NOT DEFINED TBB_ROOT_DIR)
if(EXISTS $ENV{TBBROOT})
set(TBB_ROOT_DIR "$ENV{TBBROOT}")
elseif(EXISTS /opt/intel/tbb)
set(TBB_ROOT_DIR /opt/intel/tbb)
endif()
endif()
if(TBB_ROOT_DIR)
# NOTE: Will not overwrite user defined include and library directory variables
set(TBB_INCLUDE_DIR ${TBB_ROOT_DIR}/include
CACHE PATH "The include directory for TBB")
if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
set(TBB_LIBRARY ${TBB_ROOT_DIR}/lib/libc++;${TBB_ROOT_DIR}/lib
CACHE PATH "The library directory for TBB")
elseif(CMAKE_SYSTEM_NAME MATCHES "Linux")
set(TBB_LIBRARY ${TBB_ROOT_DIR}/lib/intel64/gcc4.4;${TBB_ROOT_DIR}/lib
CACHE PATH "The library directory for TBB")
else()
set(TBB_LIBRARY ${TBB_ROOT_DIR}/lib
CACHE PATH "The library directory for TBB")
endif()
endif()
if(CMAKE_BUILD_TYPE STREQUAL "Debug" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
set(TBB_USE_DEBUG TRUE)
else()
set(TBB_USE_DEBUG FALSE)
endif()
# Search for TBB include directory
find_path(TBB_INCLUDE_DIRS NAMES tbb/tbb.h
HINTS ${TBB_INCLUDE_DIR})
# Search for TBB libraries
find_library(TBB_tbb_LIBRARY tbb
HINTS ${TBB_LIBRARY})
if(TBB_tbb_LIBRARY)
get_filename_component(TBB_tbb_LIBRARY_DIR "${TBB_tbb_LIBRARY}" PATH)
find_library(TBB_tbb_debug_LIBRARY tbb_debug
HINTS ${TBB_tbb_LIBRARY_DIR}
NO_DEFAULT_PATH)
foreach(_comp tbb_preview tbbmalloc tbbmalloc_proxy)
find_library(TBB_${_comp}_LIBRARY ${_comp}
HINTS ${TBB_tbb_LIBRARY_DIR}
NO_DEFAULT_PATH)
find_library(TBB_${_comp}_debug_LIBRARY ${_comp}_debug
HINTS ${TBB_tbb_LIBRARY_DIR}
NO_DEFAULT_PATH)
endforeach()
endif()
# Process TBB libaraies
foreach(_lib tbb tbb_preview tbbmalloc tbbmalloc_proxy)
# Set library found variables
if(TBB_${_lib}_LIBRARY)
set(TBB_${_lib}_FOUND TRUE)
else()
set(TBB_${_lib}_FOUND FALSE)
endif()
if(TBB_${_lib}_debug_LIBRARY)
set(TBB_${_lib}_debug_FOUND TRUE)
else()
set(TBB_${_lib}_debug_FOUND FALSE)
endif()
# Set the build type TBB library variables
if(_lib STREQUAL "tbb" OR ";${TBB_FIND_COMPONENTS};" MATCHES ";${_lib};")
if(TBB_${_lib}_FOUND)
set(TBB_LIBRARIES_RELEASE ${TBB_${_lib}_LIBRARY} ${TBB_LIBRARIES_RELEASE})
endif()
if(TBB_${_lib}_debug_FOUND)
set(TBB_LIBRARIES_DEBUG ${TBB_${_lib}_debug_LIBRARY} ${TBB_LIBRARIES_DEBUG})
endif()
endif()
endforeach()
# Set the TBB_LIBRARIES variable
if(TBB_USE_DEBUG AND TBB_LIBRARIES_DEBUG)
set(TBB_LIBRARIES ${TBB_LIBRARIES_DEBUG})
else()
set(TBB_LIBRARIES ${TBB_LIBRARIES_RELEASE})
endif()
# Get TBB version
if(TBB_INCLUDE_DIRS)
file(READ "${TBB_INCLUDE_DIRS}/tbb/tbb_stddef.h" _tbb_version_file)
string(REGEX REPLACE ".*#define TBB_VERSION_MAJOR ([0-9]+).*" "\\1"
TBB_VERSION_MAJOR "${_tbb_version_file}")
string(REGEX REPLACE ".*#define TBB_VERSION_MINOR ([0-9]+).*" "\\1"
TBB_VERSION_MINOR "${_tbb_version_file}")
string(REGEX REPLACE ".*#define TBB_INTERFACE_VERSION ([0-9]+).*" "\\1"
TBB_INTERFACE_VERSION "${_tbb_version_file}")
set(TBB_VERSION "${TBB_VERSION_MAJOR}.${TBB_VERSION_MINOR}")
unset(_tbb_version_header)
endif()
# handle the QUIETLY and REQUIRED arguments and set TBB_FOUND to TRUE
# if all listed variables are TRUE
find_package_handle_standard_args(TBB
FOUND_VAR TBB_FOUND
VERSION_VAR TBB_VERSION
REQUIRED_VARS TBB_LIBRARIES TBB_INCLUDE_DIRS
HANDLE_COMPONENTS)
if(TBB_LIBRARIES_DEBUG)
set(TBB_COMPILE_FLAGS_DEBUG "-DTBB_USE_DEBUG=1")
endif()
mark_as_advanced(TBB_INCLUDE_DIR TBB_LIBRARY TBB_INCLUDE_DIRS TBB_LIBRARIES)
endif()
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