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ef16e4203e
Adds IMPORTED for the TBB::tbb alias target as otherwise cmake produces the following error: CMake Error: install(EXPORT "OpenCVModules" ...) includes target "opencv_core" which requires target "tbb" that is not in the export set. This problem occurs with the defaults used by homebrew on macOS, which compiles both static and shared versions of TBB and OpenCV.
112 lines
3.8 KiB
CMake
112 lines
3.8 KiB
CMake
# Search TBB library (4.1 - 4.4, 2017)
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#
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# Own TBB (3rdparty/tbb):
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# - set cmake option BUILD_TBB to ON
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#
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# External TBB (from system):
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# - Fedora: install 'tbb-devel' package
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# - Ubuntu: install 'libtbb-dev' package
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#
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# External TBB (from official site):
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# - Linux/OSX:
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# - in tbbvars.sh replace 'SUBSTITUTE_INSTALL_DIR_HERE' with absolute path to TBB dir
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# - in terminal run 'source tbbvars.sh intel64 linux' ('source tbbvars.sh' in OSX)
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# - Windows:
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# - in terminal run 'tbbvars.bat intel64 vs2015'
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#
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# Return:
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# - HAVE_TBB set to TRUE
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# - "tbb" target exists and added to OPENCV_LINKER_LIBS
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function(ocv_tbb_cmake_guess _found)
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find_package(TBB QUIET COMPONENTS tbb PATHS "$ENV{TBBROOT}/cmake")
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if(TBB_FOUND)
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if(NOT TARGET TBB::tbb)
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message(WARNING "No TBB::tbb target found!")
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return()
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endif()
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get_target_property(_lib TBB::tbb IMPORTED_LOCATION_RELEASE)
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message(STATUS "Found TBB (cmake): ${_lib}")
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get_target_property(_inc TBB::tbb INTERFACE_INCLUDE_DIRECTORIES)
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ocv_tbb_read_version("${_inc}")
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add_library(tbb INTERFACE IMPORTED)
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set_target_properties(tbb PROPERTIES
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INTERFACE_LINK_LIBRARIES TBB::tbb
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)
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set(${_found} TRUE PARENT_SCOPE)
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endif()
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endfunction()
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function(ocv_tbb_env_verify)
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if (NOT "$ENV{TBBROOT}" STREQUAL "")
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# check that library and include dir are inside TBBROOT location
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get_filename_component(_root "$ENV{TBBROOT}" ABSOLUTE)
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get_filename_component(_lib "${TBB_ENV_LIB}" ABSOLUTE)
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get_filename_component(_inc "${TBB_ENV_INCLUDE}" ABSOLUTE)
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string(FIND "${_lib}" "${_root}" _lib_pos)
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string(FIND "${_inc}" "${_root}" _inc_pos)
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if (NOT (_lib_pos EQUAL 0 AND _inc_pos EQUAL 0))
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message(SEND_ERROR
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"Possible issue with TBB detection - TBBROOT is set, "
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"but library/include path is not inside it:\n "
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"TBBROOT: $ENV{TBBROOT}\n "
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"(absolute): ${_root}\n "
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"INCLUDE: ${_inc}\n "
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"LIBRARY: ${_lib}\n")
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endif()
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endif()
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endfunction()
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function(ocv_tbb_env_guess _found)
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find_path(TBB_ENV_INCLUDE NAMES "tbb/tbb.h" PATHS ENV CPATH NO_DEFAULT_PATH)
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find_path(TBB_ENV_INCLUDE NAMES "tbb/tbb.h")
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find_library(TBB_ENV_LIB NAMES "tbb" PATHS ENV LIBRARY_PATH NO_DEFAULT_PATH)
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find_library(TBB_ENV_LIB NAMES "tbb")
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find_library(TBB_ENV_LIB_DEBUG NAMES "tbb_debug" PATHS ENV LIBRARY_PATH NO_DEFAULT_PATH)
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find_library(TBB_ENV_LIB_DEBUG NAMES "tbb_debug")
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if (TBB_ENV_INCLUDE AND (TBB_ENV_LIB OR TBB_ENV_LIB_DEBUG))
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ocv_tbb_env_verify()
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ocv_tbb_read_version("${TBB_ENV_INCLUDE}")
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add_library(tbb UNKNOWN IMPORTED)
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set_target_properties(tbb PROPERTIES
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IMPORTED_LOCATION "${TBB_ENV_LIB}"
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IMPORTED_LOCATION_DEBUG "${TBB_ENV_LIB_DEBUG}"
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INTERFACE_INCLUDE_DIRECTORIES "${TBB_ENV_INCLUDE}"
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)
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# workaround: system TBB library is used for linking instead of provided
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if(CV_GCC)
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get_filename_component(_dir "${TBB_ENV_LIB}" DIRECTORY)
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set_target_properties(tbb PROPERTIES INTERFACE_LINK_LIBRARIES "-L${_dir}")
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endif()
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message(STATUS "Found TBB (env): ${TBB_ENV_LIB}")
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set(${_found} TRUE PARENT_SCOPE)
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endif()
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endfunction()
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function(ocv_tbb_read_version _path)
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find_file(TBB_VER_FILE tbb/tbb_stddef.h "${_path}" NO_DEFAULT_PATH CMAKE_FIND_ROOT_PATH_BOTH)
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ocv_parse_header("${TBB_VER_FILE}" TBB_VERSION_LINES TBB_VERSION_MAJOR TBB_VERSION_MINOR TBB_INTERFACE_VERSION CACHE)
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endfunction()
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#=====================================================================
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if(BUILD_TBB)
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add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/tbb")
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if(NOT TARGET tbb)
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return()
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endif()
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set(HAVE_TBB TRUE)
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endif()
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if(NOT HAVE_TBB)
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ocv_tbb_cmake_guess(HAVE_TBB)
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endif()
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if(NOT HAVE_TBB)
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ocv_tbb_env_guess(HAVE_TBB)
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endif()
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if(TBB_INTERFACE_VERSION LESS 6000) # drop support of versions < 4.0
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set(HAVE_TBB FALSE)
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endif()
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