PL_op_desc[(o)->op_type])
#ifndef DOINIT
-EXT char *PL_op_name[];
+EXT const char *PL_op_name[];
#else
-EXT char *PL_op_name[] = {
+EXT const char *PL_op_name[] = {
"null",
"stub",
"scalar",
#endif
#ifndef DOINIT
-EXT char *PL_op_desc[];
+EXT const char *PL_op_desc[];
#else
-EXT char *PL_op_desc[] = {
+EXT const char *PL_op_desc[] = {
"null operation",
"stub",
"scalar",