Do it via Kconfig rather than via #error.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 
 config RIO
        tristate "Specialix RIO system support"
-       depends on SERIAL_NONSTANDARD && BROKEN_ON_SMP
+       depends on SERIAL_NONSTANDARD && BROKEN_ON_SMP && !64BIT
        help
          This is a driver for the Specialix RIO, a smart serial card which
          drives an outboard box that can support up to 128 ports.  Product
 
 #include <linux/generic_serial.h>
 #include <asm/uaccess.h>
 
-#if BITS_PER_LONG != 32
-#  error FIXME: this driver only works on 32-bit platforms
-#endif
-
 #include "linux_compat.h"
 #include "typdef.h"
 #include "pkt.h"