2.4.19-mckinley-smp kernel: How to select compiled in modules?

[rwp@hprwp.fc.hp.com (Bob Proulx)]

In the 2.4.19-mckinley-smp config the following exists.

  CONFIG_AUTOFS_FS=y   <-- do not want it
  CONFIG_AUTOFS4_FS=y  <-- want it

But the 'autofs' driver does not support hierarchical mounts.  I would
like to use the 'autofs4' driver.  In a modular kernel I can specify
autofs4 explicitly.  But when both are compiled into the kernel how
can I make use of autofs4 instead of autofs?  Of course I can rebuild
the kernel without autofs but is there a way to avoid the rebuild?

Thanks
Bob

P.S. Is the 2.4.19-mckinley-smp still considered the best stable
kernel for ia64?