buildkernel failure [kern/kern_descrip.c]

Hi

I've tried with fresh source and /usr/obj cleared.

/usr/src/sys/kern/kern_descrip.c:2967:53: error: too many arguments to 
function call, expected 4, have 5
  2967 |         error = fget_unlocked(td, fd, needrightsp, flagsp, fpp);
       |                 ~~~~~~~~~~~~~                              ^~~
/usr/src/sys/sys/filedesc.h:291:5: note: 'fget_unlocked' declared here
   291 | int     fget_unlocked(struct thread *td, int fd,
       |         ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~
   292 |             const cap_rights_t *needrightsp, struct file **fpp);
       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/src/sys/kern/kern_descrip.c:3144:3: error: use of undeclared 
identifier 'fsearch'
  3144 |         *fsearch = ((fp->f_flag & FSEARCH) != 0);
       |          ^
2 errors generated.
*** Error code 1

Have I missed something?

Ian