SoSceneTextureCubeMap.cpp:699:47: warning: '((void)& col +12)' is used uninitialized in this function [-Wuninitialized]
glClearColor(col, col, col, col);
Thanks for your comment. I have reviewed the code and can see that the 'col' variable instanced on line 691 is initialized by the call to 'getBackgroundColor'. But then I look again and realise that SbColor is only a three component vector. There is no alpha. So col is actually not valid. I will fix it.