Enable -Wunused-local-typedef

third_party/libphonenumber/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//third_party/protobuf/proto_library.gni")
 
 proto_library("proto") {
   sources = [
     "src/resources/phonemetadata.proto",
     "src/resources/phonenumber.proto",
@@ skipping 74 matching lines @@
     "src/test/phonenumbers/phonenumbermatcher_test.cc",
     "src/test/phonenumbers/phonenumberutil_test.cc",
     "src/test/phonenumbers/regexp_adapter_test.cc",
     "src/test/phonenumbers/stringutil_test.cc",
     "src/test/phonenumbers/test_util.cc",
     "src/test/phonenumbers/unicodestring_test.cc",
   ]
 
   include_dirs = [ "src/test" ]
 
+  # gn orders flags on a target before flags from configs. The default config
+  # adds -Wall, and these flags have to be after -Wall -- so they need to come
+  # from a config and can't be on the target directly.
+  config("libphonenumber_unittests_warnings") {
+    if (is_clang) {
+      cflags = [ "-Wno-unused-local-typedef" ]
+    }
+  }
+  configs += [ ":libphonenumber_unittests_warnings" ]
+
   deps = [
     ":libphonenumber_without_metadata",
     "//base",
     "//base/test:run_all_unittests",
     "//base/third_party/dynamic_annotations",
     "//third_party/icu",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }