From 2955fc8bb2eb3202a7022d47aaff78055bf3076c Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Wed, 8 Jun 2016 09:37:43 +0100
Subject: [PATCH] Disabled the -Wextra warnin the warnings that can't be fixed
 due to optional code paths.

---
 src/osgShadow/CMakeLists.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/osgShadow/CMakeLists.txt b/src/osgShadow/CMakeLists.txt
index 2dcd76985..1e2aa74f7 100644
--- a/src/osgShadow/CMakeLists.txt
+++ b/src/osgShadow/CMakeLists.txt
@@ -5,6 +5,15 @@ ELSE()
     ADD_DEFINITIONS(-DOSG_LIBRARY_STATIC)
 ENDIF()
 
+
+################################################################################
+## Quieten warnings that a due to optional code paths
+
+IF(CMAKE_COMPILER_IS_GNUCXX)
+    # Remove -Wextra flag as it barfs on ffmoeg headers
+   STRING(REGEX REPLACE "-Wextra" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+ENDIF()
+
 SET(LIB_NAME osgShadow)
 SET(HEADER_PATH ${OpenSceneGraph_SOURCE_DIR}/include/${LIB_NAME})
 SET(TARGET_H