--- tclreadline.c.orig	2019-11-21 14:54:07.000000000 -0800
+++ tclreadline.c	2025-05-11 12:52:58.741636853 -0700
@@ -354,16 +354,16 @@
                 Tcl_WrongNumArgs(interp, 2, objv, "?boolean?");
                 return TCL_ERROR;
             } else if (3 == objc) {
-                int bool = tclrl_use_builtin_completer;
+                int boolval = tclrl_use_builtin_completer;
                 if (TCL_OK != Tcl_GetBoolean(interp,
                                  Tcl_GetStringFromObj(objv[2], 0),
-                                 &bool)) {
+                                 &boolval)) {
                     Tcl_AppendResult(interp,
                         "wrong # args: should be a boolean value.",
                         (char*) NULL);
                     return TCL_ERROR;
                 } else {
-                    tclrl_use_builtin_completer = bool;
+                    tclrl_use_builtin_completer = boolval;
                 }
             }
             Tcl_AppendResult(interp, tclrl_use_builtin_completer ? "1" : "0",