Support of oneTBB via env TBBROOT (#8327)

cmake/dependencies.cmake

@@ -148,7 +148,12 @@ if(THREADING STREQUAL "TBB" OR THREADING STREQUAL "TBB_AUTO")
     endif()
 
     update_deps_cache(TBBROOT "${TBB}" "Path to TBB root folder")
-    update_deps_cache(TBB_DIR "${TBB}/cmake" "Path to TBB cmake folder")
+    if(EXISTS "${TBBROOT}/lib/cmake/TBB/TBBConfig.cmake")
+        # oneTBB case
+        update_deps_cache(TBB_DIR "${TBB}/lib/cmake/TBB" "Path to TBB cmake folder")
+    else()
+        update_deps_cache(TBB_DIR "${TBB}/cmake" "Path to TBB cmake folder")
+    endif()
 
     update_deps_cache(TBBBIND_2_5_DIR "${TBBBIND_2_5}/cmake" "Path to TBBBIND_2_5 cmake folder")
     debug_message(STATUS "tbb=" ${TBB})

cmake/developer_package/TBBConfig.cmake

@@ -26,6 +26,7 @@ endif()
 find_package(TBB
     CONFIG
     PATHS ${TBBROOT}/cmake
+          ${TBBROOT}/lib/cmake/TBB # oneTBB case
           ${IEDevScripts_DIR}/${IE_OWN_TBB_CONFIG}
     NO_CMAKE_FIND_ROOT_PATH
     NO_DEFAULT_PATH

inference-engine/cmake/ie_parallel.cmake

@@ -25,6 +25,14 @@ function(set_ie_threading_interface_for TARGET_NAME)
         else()
             find_dependency(TBB COMPONENTS tbb tbbmalloc)
         endif()
+        # oneTBB does not define TBB_IMPORTED_TARGETS
+        if(TBB_FOUND AND NOT TBB_IMPORTED_TARGETS)
+            foreach(target TBB::tbb TBB::tbbmalloc)
+                if(TARGET ${target})
+                    list(APPEND TBB_IMPORTED_TARGETS ${target})
+                endif()
+            endforeach()
+        endif()
         set(TBB_FOUND ${TBB_FOUND} PARENT_SCOPE)
         set(TBB_IMPORTED_TARGETS ${TBB_IMPORTED_TARGETS} PARENT_SCOPE)
         set(TBB_VERSION ${TBB_VERSION} PARENT_SCOPE)