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# Poor man's FindTBB that will create the CMake targets
# used by DUNE.
# If the TBB version is new enough it will ship its own
# TBBConfig.cmake and we are good
find_package(TBB QUIET CONFIG)
if(NOT TBB_FOUND)
# Fall back to using pkgconfig
find_package(PkgConfig QUIET)
if (PKG_CONFIG_FOUND)
pkg_check_modules(PkgConfigTBB IMPORTED_TARGET GLOBAL tbb QUIET)
if(NOT TARGET PkgConfig::PkgConfigTBB)
# workaround bug in old FindPkgConfig.cmake which adds
# pkgcfg_lib_PkgConfigTBB_atomic-NOTFOUND because it cannot
# find the atomic lib of the compiler (not in platforms default
# library path. It will therefore not create the target and we
# try that manually.
string(REPLACE ";pkgcfg_lib_PkgConfigTBB_atomic-NOTFOUND" "" _find_tbb_libs "${PkgConfigTBB_LINK_LIBRARIES}")
if(_find_tbb_libs)
add_library(PkgConfig::PkgConfigTBB INTERFACE IMPORTED GLOBAL)
set_property(TARGET PkgConfig::PkgConfigTBB PROPERTY
INTERFACE_LINK_LIBRARIES "${_find_tbb_libs}")
endif()
endif()
if(TARGET PkgConfig::PkgConfigTBB)
if(NOT TARGET TBB::tbb)
message(STATUS "Found TBB library using pkg config")
add_library(TBB::tbb ALIAS PkgConfig::PkgConfigTBB)
endif()
endif()
endif(PKG_CONFIG_FOUND)
else()
message(STATUS "Found TBB library using config mode")
endif(NOT TBB_FOUND)
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