Index: OpenSceneGraph/trunk/include/osgAnimation/Sampler
===================================================================
--- OpenSceneGraph/trunk/include/osgAnimation/Sampler (revision 10527)
+++ OpenSceneGraph/trunk/include/osgAnimation/Sampler (revision 11009)
@@ -126,4 +126,5 @@
     typedef TemplateSampler<Vec4LinearInterpolator> Vec4LinearSampler;
     typedef TemplateSampler<QuatSphericalLinearInterpolator> QuatSphericalLinearSampler;
+    typedef TemplateSampler<MatrixLinearInterpolator> MatrixLinearSampler;
 
     typedef TemplateSampler<FloatCubicBezierInterpolator> FloatCubicBezierSampler;