Build libvpx on non-Mac POSIX platforms

libvpx.gyp

 # Copyright (c) 2011 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_posix==1', {
         'asm_obj_extension': 'o',
       }],
       ['OS=="win"', {
         'asm_obj_extension': 'obj',
       }],
     ],
   },
   'conditions': [
-    [ '(OS=="linux" or OS=="mac" or OS=="win") and target_arch!="arm"', {
+    [ 'OS != "android" and target_arch != "arm"', {
       'targets': [
         {
           # This libvpx target contains both encoder and decoder.
           # Encoder is configured to be realtime only.
           'target_name': 'libvpx',
           'type': 'static_library',
           'variables': {
             'yasm_output_path': '<(SHARED_INTERMEDIATE_DIR)/third_party/libvpx',
+            'variables': {
+              'conditions': [
+                # Reuse linux config for unsupported platforms like BSD and 
+                # Solaris.  This compiles but no guarantee it'll run.

[bradn, 2011/12/02 01:18:01]

Other than maybe selecting a more descriptive name than _OS, lg.
Maybe, GENERAL_OS_TYPE or something.
I don't feel strongly though.

+                ['os_posix == 1 and OS != "mac"', {
+                  '_OS%': 'linux',
+                }, {
+                  '_OS%': '<(OS)',
+                }],
+              ]},
+            '_OS%': '<(_OS)',
             'yasm_flags': [
-              '-I', 'source/config/<(OS)/<(target_arch)',
+              '-I', 'source/config/<(_OS)/<(target_arch)',
               '-I', 'source/libvpx',
             ],
           },
           'includes': [
             '../yasm/yasm_compile.gypi'
           ],
           'include_dirs': [
-            'source/config/<(OS)/<(target_arch)',
+            'source/config/<(_OS)/<(target_arch)',
             'source/libvpx',
             'source/libvpx/vp8/common',
             'source/libvpx/vp8/decoder',
             'source/libvpx/vp8/encoder',
           ],
           'direct_dependent_settings': {
             'include_dirs': [
               'source/libvpx',
             ],
           },
@@ skipping 212 matching lines @@
       ],
     },
   ],
 }
 
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