[ekiga/v4_0] Fix compile error due to partial backporting

[Eugen Dedu <ededu src gnome org>]

commit ea43e6130eaa19c27fda24ad42cdf6dafbd97913
Author: Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>
Date:   Tue Feb 19 07:30:40 2013 +0100

    Fix compile error due to partial backporting

 lib/engine/components/opal/opal-call-manager.cpp |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/lib/engine/components/opal/opal-call-manager.cpp 
b/lib/engine/components/opal/opal-call-manager.cpp
index 05b1b39..1739857 100644
--- a/lib/engine/components/opal/opal-call-manager.cpp
+++ b/lib/engine/components/opal/opal-call-manager.cpp
@@ -51,6 +51,13 @@
 
 #include <stdlib.h>
 
+// opal manages its endpoints itself, so we must be wary
+struct null_deleter
+{
+ void operator()(void const *) const
+ { }
+};
+
 static  bool same_codec_desc (Ekiga::CodecDescription a, Ekiga::CodecDescription b)
 {
   return (a.name == b.name && a.rate == b.rate);