Fix warnings on Ubuntu13

gyp/libjpeg.gyp

 # Copyright 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 is a copy of ../third_party/externals/libjpeg/libjpeg.gyp , modified
 # such that all source paths point into that directory.
 # See http://code.google.com/p/skia/issues/detail?id=543 ('wrap libjpeg.gyp
 # from Chrome's libjpeg port, rather than making our own copy') for a better
 # long-term solution.
 
@@ skipping 83 matching lines @@
                 '../third_party/externals/libjpeg/jquant1.c',
                 '../third_party/externals/libjpeg/jquant2.c',
                 '../third_party/externals/libjpeg/jutils.c',
                 '../third_party/externals/libjpeg/jversion.h',
               ],
               'direct_dependent_settings': {
                 'include_dirs': [
                   '../third_party/externals/libjpeg',
                 ],
               },
-              'conditions': [
-                [ 'skia_os != "win"', {
-                  'product_name': 'jpeg',
-                  'cflags': [
-                   '-Wno-main', # supresses warnings about naming things "main"
-                  ],
-                }],
+              'cflags': [
+                '-w', # supresses warnings
               ],
+
             },
           ],
         }, {
           'targets': [
             {
               'target_name': 'libjpeg',
               'type': 'none',
               'direct_dependent_settings': {
                 'defines': [
                   'USE_SYSTEM_LIBJPEG',
                 ],
               },
               'link_settings': {
                 'libraries': [
                   '-ljpeg',
                 ],
               },
             }
           ],
         }],
       ],
     }],
   ],
 }