TCL_UNUSED(void *),
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const objv[])
{
    Tcl_Obj *resultObj;
    unsigned char *data, *start, *cursor;
    int i, bits, index;
    unsigned int n;
    int lineLength = 61;
    const unsigned char SingleNewline[] = { UCHAR('\n') };
    const unsigned char *wrapchar = SingleNewline;
    Tcl_Size j, rawLength, offset, count = 0, wrapcharlen = sizeof(SingleNewline);
    enum { OPT_MAXLEN, OPT_WRAPCHAR };
    static const char *const optStrings[] = { "-maxlen", "-wrapchar", NULL };

    if (objc < 2 || objc % 2 != 0) {
	Tcl_WrongNumArgs(interp, 1, objv,
		"?-maxlen len? ?-wrapchar char? data");
	return TCL_ERROR;
    }

		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"invalid wrapchar; will defeat decoding", -1));
		Tcl_SetErrorCode(interp, "TCL", "BINARY",
			"ENCODE", "WRAPCHAR", (char *)NULL);
		return TCL_ERROR;
	    }
	    break;
	default:
	    TCL_UNREACHABLE();
	}
    }

    /*
     * Allocate the buffer. This is a little bit too long, but is "good
     * enough".
     */