Can't build ia32 support as a module

Hi,
I'm trying to reduce the size of the 2.5.8 kernel so it'll fit
on my (rather small) efi partition along with a backup kernel. Support for IA32 binaries is given as a tristate in the config file, but attempting to compile it as a module does not and cannot work (IA32 support relies on extra state in the thread_struct that's conditional on CONFIG_IA32_SUPPORT)

In the short term I suggest changing tristate to bool in the config.in file; in the long term, rearranging the code to allow modular installation might be nice.

Peter C