cats compile error in AOUT compatiblity code

It seems cats has been in uncompable state for a while.  Trying to
build GENERIC from fresh CVS update emits the following error.  Some
out there who qualifies PLS proceed to fix the malfunction;
  
/u0/3.0/src/sys/compat/common/compat_exec.c:56: error: argument `p' doesn't matc
h prototype
/u0/060209/src/sys/sys/exec_aout.h:203: error: prototype declaration
/u0/3.0/src/sys/compat/common/compat_exec.c:87: warning: passing arg 1 of pointe
r to function from incompatible pointer type
/u0/3.0/src/sys/compat/common/compat_exec.c: In function `exec_aout_prep_oldnmag
ic':
/u0/3.0/src/sys/compat/common/compat_exec.c:104: error: argument `p' doesn't mat
ch prototype
/u0/060209/src/sys/sys/exec_aout.h:204: error: prototype declaration
/u0/3.0/src/sys/compat/common/compat_exec.c:131: warning: passing arg 1 of point
er to function from incompatible pointer type

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