make pulseaudio available for all posix platforms because it's not linux only

media/media.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': {
     'chromium_code': 1,
     # Override to dynamically link the PulseAudio library.
     'use_pulseaudio%': 0,
   },
@@ skipping 45 matching lines @@
         'audio/linux/audio_manager_linux.cc',
         'audio/linux/audio_manager_linux.h',
         'audio/linux/alsa_input.cc',
         'audio/linux/alsa_input.h',
         'audio/linux/alsa_output.cc',
         'audio/linux/alsa_output.h',
         'audio/linux/alsa_util.cc',
         'audio/linux/alsa_util.h',
         'audio/linux/alsa_wrapper.cc',
         'audio/linux/alsa_wrapper.h',
-        'audio/linux/pulse_output.cc',
-        'audio/linux/pulse_output.h',
         'audio/openbsd/audio_manager_openbsd.cc',
         'audio/openbsd/audio_manager_openbsd.h',
         'audio/mac/audio_input_mac.cc',
         'audio/mac/audio_input_mac.h',
         'audio/mac/audio_low_latency_input_mac.cc',
         'audio/mac/audio_low_latency_input_mac.h',
         'audio/win/audio_low_latency_input_win.cc',
         'audio/win/audio_low_latency_input_win.h',
         'audio/mac/audio_low_latency_output_mac.cc',
         'audio/mac/audio_low_latency_output_mac.h',
         'audio/mac/audio_manager_mac.cc',
         'audio/mac/audio_manager_mac.h',
         'audio/mac/audio_output_mac.cc',
         'audio/mac/audio_output_mac.h',
+        'audio/pulse/pulse_output.cc',
+        'audio/pulse/pulse_output.h',
         'audio/simple_sources.cc',
         'audio/simple_sources.h',
         'audio/win/audio_manager_win.h',
         'audio/win/audio_manager_win.cc',
         'audio/win/avrt_wrapper_win.h',
         'audio/win/avrt_wrapper_win.cc',
         'audio/win/wavein_input_win.cc',
         'audio/win/wavein_input_win.h',
         'audio/win/waveout_output_win.cc',
         'audio/win/waveout_output_win.h',
@@ skipping 198 matching lines @@
             'video/ffmpeg_video_decode_engine.cc',
             'video/ffmpeg_video_decode_engine.h',
           ],
         }],
         ['OS=="linux" or OS=="freebsd" or OS=="solaris"', {
           'link_settings': {
             'libraries': [
               '-lasound',
             ],
           },
-          'conditions': [
-            ['OS=="linux"', {
-              'conditions': [
-                ['use_pulseaudio == 1', {
-                  'link_settings': {
-                    'libraries': [
-                      '-lpulse',
-                    ],
-                  },
-                  'defines': [
-                    'USE_PULSEAUDIO',
-                  ],
-                }, {  # else: use_pulseaudio == 0
-                  'sources!': [
-                    'audio/linux/pulse_output.cc',
-                    'audio/linux/pulse_output.h',
-                  ],
-                }],
-              ],
-            }],
-          ],
         }],
         ['OS=="openbsd"', {
           'sources/': [ ['exclude', '/alsa_' ],
-                        ['exclude', '/audio_manager_linux' ],
-                        ['exclude', '/pulse_' ] ],
+                        ['exclude', '/audio_manager_linux' ] ],
           'link_settings': {
             'libraries': [
             ],
           },
         }],
         ['OS!="openbsd"', {
           'sources!': [
             'audio/openbsd/audio_manager_openbsd.cc',
             'audio/openbsd/audio_manager_openbsd.h',
           ],
         }],
         ['os_posix == 1', {
+          'conditions': [
+            ['use_pulseaudio == 1', {
+              'cflags': [
+                '<!@(pkg-config --cflags libpulse)',
+              ],
+              'link_settings': {
+                'libraries': [
+                  '<!@(pkg-config --libs-only-l libpulse)',
+                ],
+              },
+              'defines': [
+                'USE_PULSEAUDIO',
+              ],
+            }, {  # else: use_pulseaudio == 0
+              'sources!': [
+                'audio/pulse/pulse_output.cc',
+                'audio/pulse/pulse_output.h',
+              ],
+            }],
+          ],
           'sources!': [
             'video/capture/video_capture_device_dummy.cc',
             'video/capture/video_capture_device_dummy.h',
           ],
         }],
         ['OS=="mac"', {
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AudioUnit.framework',
               '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreAudio.framework',
               '$(SDKROOT)/System/Library/Frameworks/CoreVideo.framework',
               '$(SDKROOT)/System/Library/Frameworks/QTKit.framework',
             ],
           },
         }],
         ['OS=="win"', {
           'sources!': [
+            'audio/pulse/pulse_output.cc',
+            'audio/pulse/pulse_output.h',
             'video/capture/video_capture_device_dummy.cc',
             'video/capture/video_capture_device_dummy.h',
           ],
         }],
       ],
     },
     {
       'target_name': 'cpu_features',
       'type': 'static_library',
       'include_dirs': [
@@ skipping 514 matching lines @@
             '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
           ],
           'sources': [
             'tools/media_bench/media_bench.cc',
           ],
         },
       ],
     }]
   ],
 }