diff --git a/libcxx/src/CMakeLists.txt b/libcxx/src/CMakeLists.txt
index 323d38c752..190a11eda5 100644
--- a/libcxx/src/CMakeLists.txt
+++ b/libcxx/src/CMakeLists.txt
@@ -142,6 +142,8 @@ endif()
 function(cxx_link_system_libraries target)
   target_add_link_flags_if_supported(${target} PRIVATE "-nodefaultlibs")
   target_add_compile_flags_if_supported(${target} PRIVATE "/Zl")
+  target_add_compile_flags_if_supported(${target} PRIVATE "-Wno-deprecated-declarations")
+  target_add_compile_flags_if_supported(${target} PRIVATE "-Wno-attributes")
   if (NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "PGI")
     target_add_link_flags_if_supported(${target} PRIVATE "/nodefaultlib")
   endif()