Index: OpenSceneGraph/trunk/src/osgDB/Registry.cpp
===================================================================
--- OpenSceneGraph/trunk/src/osgDB/Registry.cpp (revision 9717)
+++ OpenSceneGraph/trunk/src/osgDB/Registry.cpp (revision 9880)
@@ -239,4 +239,17 @@
     addFileExtensionAlias("vert",   "glsl");
     addFileExtensionAlias("frag",   "glsl");
+
+
+#if defined(DARWIN_IMAGEIO)
+    addFileExtensionAlias("jpg",  "imageio");
+    addFileExtensionAlias("jpe",  "imageio");
+    addFileExtensionAlias("jpeg", "imageio");
+    addFileExtensionAlias("tif",  "imageio");
+    addFileExtensionAlias("tiff", "imageio");
+    addFileExtensionAlias("gif",  "imageio");
+    addFileExtensionAlias("png",  "imageio");
+    addFileExtensionAlias("psd",  "imageio");
+    addFileExtensionAlias("tga",  "imageio");
+#endif
 
 #if defined(DARWIN_QUICKTIME)