add switch defaults to silence warnings

src/mesa/main/program.c

@@ -726,6 +726,9 @@ _mesa_fetch_state(GLcontext *ctx, const enum state_index state[],
             case STATE_LOCAL:
                COPY_4V(value, ctx->FragmentProgram.Current->Base.LocalParams[idx]);
                break;				
+            default:
+               _mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
+               return;
          }				  
       }			
       return;
@@ -744,6 +747,9 @@ _mesa_fetch_state(GLcontext *ctx, const enum state_index state[],
             case STATE_LOCAL:
                COPY_4V(value, ctx->VertexProgram.Current->Base.LocalParams[idx]);
                break;				
+            default:
+               _mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
+               return;
          }				  
       }			
       return;