--- ./src/osgPlugins/gdal/CMakeLists.txt.orig	2015-07-02 11:58:49 UTC
+++ ./src/osgPlugins/gdal/CMakeLists.txt
@@ -1,4 +1,4 @@
-INCLUDE_DIRECTORIES( ${GDAL_INCLUDE_DIR} )
+INCLUDE_DIRECTORIES(SYSTEM ${GDAL_INCLUDE_DIR})
 
 SET(TARGET_SRC
     ReaderWriterGDAL.cpp
