cmake: add options for enabling TBB and NUMA support

Summary:
see also https://github.com/facebook/rocksdb/issues/3036

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
Closes https://github.com/facebook/rocksdb/pull/3750

Differential Revision: D7765170

Pulled By: ajkr

fbshipit-source-id: 455788b3131bf62a4987a65684b757e68473eed9

CMakeLists.txt

@@ -284,15 +284,17 @@ if(WITH_UBSAN)
   endif()
 endif()
 
-find_package(NUMA)
+option(WITH_NUMA "build with NUMA policy support" OFF)
-if(NUMA_FOUND)
+if(WITH_NUMA)
+  find_package(NUMA REQUIRED)
   add_definitions(-DNUMA)
   include_directories(${NUMA_INCLUDE_DIR})
   list(APPEND THIRDPARTY_LIBS ${NUMA_LIBRARIES})
 endif()
 
-find_package(TBB)
+option(WITH_TBB "build with Threading Building Blocks (TBB)" OFF)
-if(TBB_FOUND)
+if(WITH_TBB)
+  find_package(TBB REQUIRED)
   add_definitions(-DTBB)
   include_directories(${TBB_INCLUDE_DIR})
   list(APPEND THIRDPARTY_LIBS ${TBB_LIBRARIES})