Consistent names for TBB_INTERFACE_VERSION

CMake/FindTBB.cmake

@@ -263,8 +263,8 @@ ELSE()
     MESSAGE(FATAL_ERROR "Cannot find version file in ${TBB_INCLUDE_DIRS}/tbb.")
 ENDIF()
 # If file has been found, also read the interface version
-STRING(REGEX REPLACE ".*#define TBB_INTERFACE_VERSION ([0-9]+).*" "\\1" _TBB_VERSION_INTERFACE "${_FILE}")
-SET(TBB_INTERFACE_VERSION ${_TBB_VERSION_INTERFACE})
+STRING(REGEX REPLACE ".*#define TBB_INTERFACE_VERSION ([0-9]+).*" "\\1" _TBB_INTERFACE_VERSION "${_FILE}")
+SET(TBB_INTERFACE_VERSION ${_TBB_INTERFACE_VERSION} CACHE STRING "" FORCE)
 IF (_VERB)
     MESSAGE(STATUS "TBB version: ${TBB_VERSION} (${TBB_INTERFACE_VERSION})")
 ENDIF()

tbox/src/CMakeLists.txt

@@ -25,7 +25,7 @@ TARGET_INCLUDE_DIRECTORIES(tbox PUBLIC ${PROJECT_SOURCE_DIR}/tbox/src)
 FIND_PACKAGE(TBB REQUIRED)
 SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${TBB_CXX_FLAGS_DEBUG}")
 TARGET_INCLUDE_DIRECTORIES(tbox PUBLIC ${TBB_INCLUDE_DIRS})
-IF(TBB_VERSION_INTERFACE LESS 11004)
+IF(TBB_INTERFACE_VERSION LESS 11004)
     TARGET_COMPILE_DEFINITIONS(tbox PUBLIC TBB_PREVIEW_GLOBAL_CONTROL)
 ENDIF()
 TARGET_LINK_LIBRARIES(tbox  ${TBB_LIBRARIES})