restore flags

Signed-off-by: Sergey V Maslov <[email protected]>

Author: smaslov-intel

sycl/plugins/level_zero/CMakeLists.txt

@@ -17,14 +17,17 @@ if (NOT DEFINED LEVEL_ZERO_LIBRARY OR NOT DEFINED LEVEL_ZERO_INCLUDE_DIR)
   )
 
   # Suppress some pedantic warnings for Level Zero build
+  set(CMAKE_CXX_FLAGS_BAK "${CMAKE_CXX_FLAGS}")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-but-set-variable")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-pedantic")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-stringop-truncation")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-warning-option")
 
   FetchContent_MakeAvailable(level-zero-loader)
   FetchContent_GetProperties(level-zero-loader)
 
+  # Restore original flags
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_BAK}")
+
   set(LEVEL_ZERO_LIBRARY ze_loader)
   set(LEVEL_ZERO_INCLUDE_DIR
     ${level-zero-loader_SOURCE_DIR}/include CACHE PATH "Path to Level Zero Headers")