int skip_unavailable);
/* Controls whether the frontend wants MI in async mode. */
-static int mi_async = 0;
+static bool mi_async = false;
/* The set command writes to this variable. If the inferior is
executing, mi_async is *not* updated. */
-static int mi_async_1 = 0;
+static bool mi_async_1 = false;
static void
set_mi_async_command (const char *args, int from_tty,