From Philip Lowman, added support for Inventor

src/osgPlugins/CMakeLists.txt

@@ -80,7 +80,9 @@ ENDIF (BUILD_OSG_IMAGE_PLUGINS)
 IF (BUILD_OSG_3D_PLUGINS)
 	SET(TARGET_DEFAULT_LABEL_PREFIX "Plug 3d")
 	ADD_SUBDIRECTORY(3dc)
-	#ADD_SUBDIRECTORY(Inventor)
+	IF(INVENTOR_FOUND)
+		ADD_SUBDIRECTORY(Inventor)
+	ENDIF(INVENTOR_FOUND)
 	#ADD_SUBDIRECTORY(lwo)
 	ADD_SUBDIRECTORY(x)
 	ADD_SUBDIRECTORY(dw)

src/osgPlugins/Inventor/CMakeLists.txt

@@ -0,0 +1,20 @@
+INCLUDE(OsgMacroUtils)
+
+SET(TARGET_SRC
+    ConvertFromInventor.cpp
+    GroupSoLOD.cpp
+    PendulumCallback.cpp
+    ReaderWriterIV.cpp
+    ShuttleCallback.cpp
+    )
+SET(TARGET_HDRS
+    ConvertFromInventor.h
+    GroupSoLOD.h
+    PendulumCallback.h
+    ReaderWriterIV.h
+    ShuttleCallback.h
+    )
+
+SET(TARGET_EXTERNAL_LIBRARIES ${INVENTOR_LIBRARY} )
+
+SETUP_PLUGIN(iv)