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

printing/printing.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 44 matching lines @@
         'printing_context_win.cc',
         'units.cc',
         'units.h',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '..',
         ],
       },
       'conditions': [
-        ['OS!="linux"', {'sources/': [['exclude', '_linux\\.cc$']]}],
+        ['OS!="linux" and OS!="freebsd"',
+         {'sources/': [['exclude', '_linux\\.cc$']]}],
         ['OS!="mac"', {'sources/': [['exclude', '_mac\\.(cc|mm?)$']]}],
         ['OS!="win"', {
           'sources/': [
             ['exclude', '_win\\.cc$'],
             ['exclude', 
               'printed_document.cc',
             ]
           ]  
         }, {  # else: OS=="win"
           'sources/': [['exclude', '_posix\\.cc$']]
@@ skipping 42 matching lines @@
             '../base/base.gyp:base_gfx',
          ],
          'sources/': [
             ['include', 'pdf_ps_metafile_linux_unittest.cc'],
           ]
         }],
       ],
     },
   ],
 }