diff --git a/src/osgWidget/CMakeLists.txt b/src/osgWidget/CMakeLists.txt
index c1716c21b..378a1a72f 100644
--- a/src/osgWidget/CMakeLists.txt
+++ b/src/osgWidget/CMakeLists.txt
@@ -4,6 +4,14 @@ 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 osgWidget)
 SET(HEADER_PATH ${OpenSceneGraph_SOURCE_DIR}/include/${LIB_NAME})
 SET(TARGET_H
diff --git a/src/osgWidget/Input.cpp b/src/osgWidget/Input.cpp
index 420177a06..4458505e3 100644
--- a/src/osgWidget/Input.cpp
+++ b/src/osgWidget/Input.cpp
@@ -82,7 +82,8 @@ Input::Input(const std::string& name, const std::string& label, unsigned int siz
    _cursor->setDrawCallback( new BlinkCursorCallback(_insertMode) );
 }
 
-void Input::_calculateSize(const XYCoord& size) {
+void Input::_calculateSize(const XYCoord& /*size*/)
+    {
    // An Input cannot currently set it's own size RELIABLY until the osgText implementation
    // is dratiscally improved. I'm getting wildly crazy results. :(
    // point_type height = size.y() > _cursor->getHeight() ? size.y() : _cursor->getHeight();
@@ -281,11 +282,12 @@ void Input::positioned()
     }
 }
 
-bool Input::keyUp(int key, int mask, const WindowManager*) {
+bool Input::keyUp(int /*key*/, int /*mask*/, const WindowManager*)
+{
    return false;
 }
 
-bool Input::mouseDrag (double x, double y, const WindowManager*)
+bool Input::mouseDrag (double x, double /*y*/, const WindowManager*)
 {
     _mouseClickX += x;
     x = _mouseClickX;
@@ -306,7 +308,7 @@ bool Input::mouseDrag (double x, double y, const WindowManager*)
     return true;
 }
 
-bool Input::mousePush (double x, double y, const WindowManager* wm)
+bool Input::mousePush (double x, double /*y*/, const WindowManager* /*wm*/)
 {
     double offset = getOrigin().x();
     Window* window = getParent();
diff --git a/src/osgWidget/Lua.cpp b/src/osgWidget/Lua.cpp
index 9def84f2a..f55a31e9a 100644
--- a/src/osgWidget/Lua.cpp
+++ b/src/osgWidget/Lua.cpp
@@ -131,7 +131,7 @@ bool LuaEngine::close() {
 #endif
 }
 
-bool LuaEngine::eval(const std::string& code) {
+bool LuaEngine::eval(const std::string& /*code*/) {
 #ifdef OSGWIDGET_USELUA
     if(luaL_dostring(_data->lua, code.c_str())) {
         warn() << "LuaEngine::eval - " << lua_tostring(_data->lua, -1) << std::endl;
@@ -146,7 +146,7 @@ bool LuaEngine::eval(const std::string& code) {
 #endif
 }
 
-bool LuaEngine::runFile(const std::string& filePath) {
+bool LuaEngine::runFile(const std::string& /*filePath*/) {
 #ifdef OSGWIDGET_USELUA
     if(!osgDB::fileExists(filePath)) {
         warn() << "Couldn't find file \"" << filePath << "\" for LuaEngine." << std::endl;