Fix a bug whereby the 'have_easy_codec' would be left undefined
when passing '-D enable-easy-codec-installation=no'.  Likewise,
don't rely on GStreamer's plug-in support when it's disabled.

--- totem-3.26.0/meson.build	2017-10-11 22:29:44.506280919 +0200
+++ totem-3.26.0/meson.build	2017-10-11 22:29:50.902252058 +0200
@@ -203,6 +203,8 @@ if easy_codec_option != 'no'
   missing_plugins_deps += gst_pbutils_dep
   config_h.set('ENABLE_MISSING_PLUGIN_INSTALLATION', have_easy_codec,
                description: 'Whether we can and want to do installation of missing plugins')
+else
+  have_easy_codec = false
 endif
 
 # python support

--- totem-3.26.0/src/backend/bacon-video-widget.c	2017-10-11 22:40:52.531217356 +0200
+++ totem-3.26.0/src/backend/bacon-video-widget.c	2017-10-11 22:45:44.973847231 +0200
@@ -341,6 +341,22 @@ get_type_name (GType class_type, int typ
   return value->value_nick;
 }
 
+#ifndef ENABLE_MISSING_PLUGIN_INSTALLATION
+
+gchar *
+gst_missing_plugin_message_get_installer_detail (GstMessage *message)
+{
+  return NULL;
+}
+
+char *
+gst_missing_plugin_message_get_description (GstMessage *message)
+{
+  return NULL;
+}
+
+#endif
+
 static gchar **
 bvw_get_missing_plugins_foo (const GList * missing_plugins, MsgToStrFunc func)
 {
@@ -1654,10 +1670,12 @@ bvw_handle_element_message (BaconVideoWi
       }
     }
     goto done;
+#ifdef ENABLE_MISSING_PLUGIN_INSTALLATION
   } else if (gst_is_missing_plugin_message (msg)) {
     bvw->priv->missing_plugins =
       g_list_prepend (bvw->priv->missing_plugins, gst_message_ref (msg));
     goto done;
+#endif
   } else if (strcmp (type_name, "not-mounted") == 0) {
     const GValue *val;
     GFile *file;
@@ -6109,7 +6127,9 @@ bacon_video_widget_initable_init (GInita
   GST_DEBUG ("Initialised %s", version_str);
   g_free (version_str);
 
+#ifdef ENABLE_MISSING_PLUGIN_INSTALLATION
   gst_pb_utils_init ();
+#endif
 
   /* Instantiate all the fallible plugins */
   bvw->priv->play = element_make_or_warn ("playbin", "play");

iv class='path'>path: <a href='/guix/log/?id=215a45d9b8e00cfcc3bf613de61c5d8ee304b512'>root</a>/<a href='/guix/log/gnu?id=215a45d9b8e00cfcc3bf613de61c5d8ee304b512'>gnu</a>/<a href='/guix/log/gnu/services?id=215a45d9b8e00cfcc3bf613de61c5d8ee304b512'>services</a>/<a href='/guix/log/gnu/services/sound.scm?id=215a45d9b8e00cfcc3bf613de61c5d8ee304b512'>sound.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/services/sound.scm?id=215a45d9b8e00cfcc3bf613de61c5d8ee304b512&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-06-25 23:29:46 +0800'>2018-06-25</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=1e3861eb00a2e9531bc4326b37a31405e34cc0ff'>services: alsa-service-type: Fix the loading of 'pulse' plugin.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/31591&gt;.

* gnu/services/sound.scm (&lt;alsa-configuration&gt;)[alsa-plugins]: New field.
(alsa-config-file): Use 'pcm_type.pulse' and 'ctl_type.pulse' to specify file
paths to the 'pulse' plugin.
* doc/guix.texi (Sound Services): Document this.

Co-authored-by: 宋文武 &lt;iyzsong@member.fsf.org&gt;
</span></span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2018-05-02 15:11:13 +0300'>2018-05-02</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=8cd1e8e84926dc6ed1012a17609dea2d20ac41b4'>gnu: Add sound service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sound.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add this.
* doc/guix.texi (Sound Services): New chapter.
</span></span></td><td>Oleg Pykhalov</td></tr>