"riscom.o" build error under 2.5.70

[Robert P. J. Day]

  the final output from a "make allyesconfig" of 2.5.70 on RH 9 (seems 
like the riscom code has been a problem for a while, no?):

... snip ...

  CC      drivers/char/riscom8.o
In file included from drivers/char/riscom8.c:51:
drivers/char/riscom8.h:88: field `tqueue' has incomplete type
drivers/char/riscom8.h:89: field `tqueue_hangup' has incomplete type
drivers/char/riscom8.c:84: warning: type defaults to `int' in declaration of `DECLARE_TASK_QUEUE'
drivers/char/riscom8.c:84: warning: parameter names (without types) in function declaration
drivers/char/riscom8.c:142: confused by earlier errors, bailing out
make[2]: *** [drivers/char/riscom8.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2

rday