[gstreamermm] Gst::Allocator: build fix

[Marcin Kolny <mkolny src gnome org>]

commit 0ec42d5f1684b3ffb868b403b96370e2f32bf0ae
Author: Marcin Kolny <marcin kolny gmail com>
Date:   Wed Aug 26 13:39:15 2015 +0000

    Gst::Allocator: build fix
    
        * tools/m4/convert_gst.m4: add allocator conversion methods.

 tools/m4/convert_gst.m4 |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/tools/m4/convert_gst.m4 b/tools/m4/convert_gst.m4
index 3f41455..175a524 100644
--- a/tools/m4/convert_gst.m4
+++ b/tools/m4/convert_gst.m4
@@ -85,6 +85,8 @@ _CONVERSION(`GstAllocationParams*', `Gst::AllocationParams', `Gst::AllocationPar
 
 dnl Allocator
 _CONVERSION(`const Glib::RefPtr<Gst::Allocator>&',`GstAllocator*', `Glib::unwrap($3)')
+_CONVERSION(`Glib::RefPtr<Gst::Allocator>&&',`GstAllocator*',`($3) ? $3.release()->gobj() : nullptr');
+_CONVERSION(`GstAllocator*', `Glib::RefPtr<Gst::Allocator>', `Glib::wrap($3)')
 
 dnl Buffer
 _CONVERSION(`GstBuffer*',`Glib::RefPtr<Gst::Buffer>',`Glib::wrap($3)')