Continue with the FreeBSD port - this version builds and links, though...

base/base.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': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/common.gypi',
@@ skipping 373 matching lines @@
               [ 'chromeos==1', {
                   'sources/': [ ['include', '_chromeos\\.cc$'] ]
                 },
               ],
               [ 'linux_use_tcmalloc==1', {
                   'dependencies': [
                     '../third_party/tcmalloc/tcmalloc.gyp:tcmalloc',
                   ],
                 },
               ],
+              [ 'OS == "linux"', {
+                  'link_settings': {
+                    'libraries': [
+                      # We need rt for clock_gettime().
+                      '-lrt',
+                    ],
+                  },
+                },
+              ],
             ],
             'dependencies': [
               '../build/util/build_util.gyp:lastchange',
               '../build/linux/system.gyp:gtk',
               '../build/linux/system.gyp:nss',
             ],
             'cflags': [
               '-Wno-write-strings',
             ],
-            'link_settings': {
-              'libraries': [
-                # We need rt for clock_gettime().
-                '-lrt',
-              ],
-            },
             'export_dependent_settings': [
               '../build/linux/system.gyp:gtk',
             ],
           },
           {  # else: OS != "linux" && OS != "freebsd"
             'sources/': [
               ['exclude', '/xdg_mime/'],
             ],
             'sources!': [
               'crypto/signature_verifier_nss.cc',
@@ skipping 454 matching lines @@
                 '<@(_outputs)',
               ],
               'message': 'Generating version information',
             },
           ],
         },
       ],
     }],
   ],
 }