Add support for iOS to libjpeg.gyp.

libjpeg.gyp

 # Copyright (c) 2012 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.
 
 {
   # This file is not used when use_system_libjpeg==1. Settings for building with
   # the system libjpeg is in third_party/libjpeg/libjpeg.gyp.
   'variables': {
     'shared_generated_dir': '<(SHARED_INTERMEDIATE_DIR)/third_party/libjpeg_turbo',
     'conditions': [
@@ skipping 202 matching lines @@
                 'yasm_flags': [
                   '-D__x86_64__',
                   '-DWIN64',
                   '-DMSVC',
                   '-Iwin/'
                 ],
               }],
             ],
           },
         }],
-        [ 'OS=="mac"', {
+        [ 'OS=="mac" or OS=="ios"', {
           'dependencies': [
             '../yasm/yasm.gyp:yasm#host',
           ],
           'variables': {
             'yasm_path': '<(PRODUCT_DIR)/yasm',
             'conditions': [
               [ 'target_arch=="ia32"', {
                 'yasm_format': '-fmacho',
                 'yasm_flags': [
                   '-D__x86__',
@@ skipping 73 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: