set type 'settings' to 'none' in gyp file in case using the system lib

speex.gyp

 # Copyright (c) 2010 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.
 
 {
   'variables': {
     'use_system_speex%': 0,
   },
   'conditions': [
     ['use_system_speex==0', {
@@ skipping 76 matching lines @@
               'include',  # Clients expect <speex/speex.h> to be a system header.
             ],
           },
           'msvs_disabled_warnings': [4244, 4305],
         },
       ],
     }, { # use_system_speex != 0
       'targets': [
         {
           'target_name': 'libspeex',
-          'type': 'settings',
+          'type': 'none',
           'direct_dependent_settings': {
             'cflags': [
               '<!@(pkg-config --cflags speex)',
             ],
             'defines': [
               'USE_SYSTEM_SPEEX',
             ],
           },
           'link_settings': {
             'ldflags': [
               '<!@(pkg-config --libs-only-L --libs-only-other speex)',
             ],
             'libraries': [
               '<!@(pkg-config --libs-only-l speex)',
             ],
           },
         },
       ],
     }],
   ],
 }
 
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