Second set adding in Solaris as an OS option

third_party/libxml/libxml.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.
 
 {
   'variables': {
     'conditions': [
-      ['OS=="linux" or OS=="freebsd" or OS=="openbsd"', {
+      ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
         'os_include': 'linux'
       }],
       ['OS=="mac"', {'os_include': 'mac'}],
       ['OS=="win"', {'os_include': 'win32'}],
     ],
     'use_system_libxml%': 0,
   },
   'targets': [
     {
       'target_name': 'libxml',
       'conditions': [
-        ['(OS=="linux" or OS=="freebsd" or OS=="openbsd") and use_system_libxml', {
+        ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris") and use_system_libxml', {
           'type': 'settings',
           'direct_dependent_settings': {
             'cflags': [
               '<!@(pkg-config --cflags libxml-2.0)',
             ],
             'defines': [
               'USE_SYSTEM_LIBXML',
             ],
           },
           'link_settings': {
@@ skipping 161 matching lines @@
       ],
     },
   ],
 }
 
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