[ekiga] Desactivate the recently introduced NullAudio ptlib's device

[Eugen Dedu <ededu src gnome org>]

commit f1cb596f48402e0064f1565f755ba9bfc201500f
Author: Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>
Date:   Mon Nov 26 20:41:22 2012 +0100

    Desactivate the recently introduced NullAudio ptlib's device

 .../components/ptlib/audiooutput-manager-ptlib.cpp |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/lib/engine/components/ptlib/audiooutput-manager-ptlib.cpp b/lib/engine/components/ptlib/audiooutput-manager-ptlib.cpp
index 297ab26..cd68253 100644
--- a/lib/engine/components/ptlib/audiooutput-manager-ptlib.cpp
+++ b/lib/engine/components/ptlib/audiooutput-manager-ptlib.cpp
@@ -71,7 +71,8 @@ void GMAudioOutputManager_ptlib::get_devices(std::vector <Ekiga::AudioOutputDevi
     device.source = sources_array[i];
 
     if ((device.source != "EKIGA") &&
-        (device.source != "WAVFile")) {
+        (device.source != "WAVFile") &&
+        (device.source != "NullAudio")) {
       audio_devices = PSoundChannel::GetDeviceNames (device.source, PSoundChannel::Player);
       devices_array = audio_devices.ToCharArray ();