File bzflag-decl.patch of Package bzflag

--- src/ogl/OpenGLGState.cxx
+++ src/ogl/OpenGLGState.cxx
@@ -128,6 +128,8 @@
     Unsorted		unsorted;
 };
 
+class SortedGState;
+
 //
 // OpenGLGStateRep
 //