--- src/osgPlugins/nvtt/CMakeLists.txt.orig	2011-04-19 11:40:22 UTC
+++ src/osgPlugins/nvtt/CMakeLists.txt
@@ -1,4 +1,4 @@
-INCLUDE_DIRECTORIES( ${NVTT_INCLUDE_DIR} )
+INCLUDE_DIRECTORIES(SYSTEM ${NVTT_INCLUDE_DIR})
 
 
 SET(TARGET_SRC
