diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
--- a/sys/kern/kern_proc.c
+++ b/sys/kern/kern_proc.c
@@ -725,7 +725,7 @@
 	return (jobc_reaper(pp));
 }
 
-static int
+int
 pgrp_calc_jobc(struct pgrp *pgrp)
 {
 	struct proc *q;
diff --git a/sys/sys/proc.h b/sys/sys/proc.h
--- a/sys/sys/proc.h
+++ b/sys/sys/proc.h
@@ -1174,6 +1174,7 @@
 struct	pargs *pargs_alloc(int len);
 void	pargs_drop(struct pargs *pa);
 void	pargs_hold(struct pargs *pa);
+int	pgrp_calc_jobc(struct pgrp *pgrp);
 void	proc_add_orphan(struct proc *child, struct proc *parent);
 int	proc_get_binpath(struct proc *p, char *binname, char **fullpath,
 	    char **freepath);