Fix the Linux shared build.

third_party/ffmpeg/ffmpeg.gyp

Index: third_party/ffmpeg/ffmpeg.gyp
===================================================================
--- third_party/ffmpeg/ffmpeg.gyp	(revision 26276)
+++ third_party/ffmpeg/ffmpeg.gyp	(working copy)
@@ -148,6 +148,12 @@
                 '../..',  # The chromium 'src' directory.
               ],
             },
+            'link_settings': {
+              'libraries': [
+                # We need dl for dlopen() and friends.
+                '-ldl',

[TVL, 2009/09/16 14:58:41]

this is making the mac build grumpy, you needed conditionals in here

+              ],
+            },
             'actions': [
               {
                 'action_name': 'generate_stubs',