clang: Add -Wno-empty-body to hunspell.gyp

hunspell.gyp

 # Copyright (c) 2009 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.
 
 {
   'targets': [
     {
       'target_name': 'hunspell',
       'type': '<(library)',
       'msvs_guid': 'D5E8DCB2-9C61-446F-8BEE-B18CA0E0936E',
@@ skipping 53 matching lines @@
         ],
       },
       'conditions': [
         ['os_posix == 1 and OS != "mac"', {
           'cflags': [
             '-Wno-unused-value',
             '-Wno-unused-variable',
             '-Wno-write-strings',
           ],
         }],
+        ['clang == 1', {
+          'xcode_settings': {
+            'WARNING_CFLAGS': [
+              # affentry.cxx has one `while ((p = nextchar(p)));` parsing loop.
+              '-Wno-empty-body',
+            ],
+          },
+          'cflags': [
+            '-Wno-empty-body',
+          ],
+        }],
       ],
     },
   ],
 }