[master] e7ed39857 Cater for the older kevent(2) API still in use on NetBSD

[Poul-Henning Kamp]

commit e7ed398572051d0ea87d93722b28237c7755aaad
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Wed Aug 4 08:04:19 2021 +0000

    Cater for the older kevent(2) API still in use on NetBSD
    
    Fixes: #3642

diff --git a/bin/varnishd/waiter/cache_waiter_kqueue.c b/bin/varnishd/waiter/cache_waiter_kqueue.c
index 27ff1cca6..8e70af060 100644
--- a/bin/varnishd/waiter/cache_waiter_kqueue.c
+++ b/bin/varnishd/waiter/cache_waiter_kqueue.c
@@ -113,11 +113,11 @@ vwk_thread(void *priv)
 		now = VTIM_real();
 		for (kp = ke, j = 0; j < n; j++, kp++) {
 			assert(kp->filter == EVFILT_READ);
-			if (ke[j].udata == vwk) {
+			if ((uintptr_t)ke[j].udata == (uintptr_t)vwk) {
 				assert(read(vwk->pipe[0], &c, 1) == 1);
 				continue;
 			}
-			CAST_OBJ_NOTNULL(wp, ke[j].udata, WAITED_MAGIC);
+			CAST_OBJ_NOTNULL(wp, (void*)ke[j].udata, WAITED_MAGIC);
 			Lck_Lock(&vwk->mtx);
 			AN(Wait_HeapDelete(w, wp));
 			Lck_Unlock(&vwk->mtx);