-/* A compiler option to turn off edge labels */
-int edge_label = 1;
-/* A compiler option to turn off dumping values of constant entities */
-int const_entities = 1;
-/* A compiler option to dump the keep alive edges */
-int dump_keepalive = 0;
-/* Compiler options to dump analysis information in dump_ir_graph */
+/** A compiler option to turn off edge labels */
+static int edge_label = 1;
+/** A compiler option to turn off dumping values of constant entities */
+static int const_entities = 1;
+/** A compiler option to dump the keep alive edges */
+static int dump_keepalive = 0;
+/** Compiler options to dump analysis information in dump_ir_graph */