Disable all waiters but the 'poll' waiter.

Don't worry, they'll will come back later.

bin/varnishd/waiter/cache_waiter_epoll.c

@@ -31,6 +31,7 @@
  * write the session pointer to a pipe which the event engine monitors.
  */
 
+#if 0
 #include "config.h"
 
 #if defined(HAVE_EPOLL_CTL)
@@ -165,3 +166,4 @@ const struct waiter_impl waiter_epoll = {
 };
 
 #endif /* defined(HAVE_EPOLL_CTL) */
+#endif

bin/varnishd/waiter/cache_waiter_kqueue.c

@@ -31,6 +31,7 @@
  * write the session pointer to a pipe which the event engine monitors.
  */
 
+#if 0
 #include "config.h"
 
 #if defined(HAVE_KQUEUE)
@@ -214,3 +215,4 @@ const struct waiter_impl waiter_kqueue = {
 };
 
 #endif /* defined(HAVE_KQUEUE) */
+#endif

bin/varnishd/waiter/cache_waiter_ports.c

@@ -29,6 +29,7 @@
  *
  */
 
+#if 0
 #include "config.h"
 
 #if defined(HAVE_PORT_CREATE)
@@ -291,3 +292,4 @@ const struct waiter_impl waiter_ports = {
 };
 
 #endif /* defined(HAVE_PORT_CREATE) */
+#endif

bin/varnishd/waiter/mgt_waiter.c

@@ -39,6 +39,7 @@
 #include "waiter/waiter_priv.h"
 
 static const struct waiter_impl *const waiter_impls[] = {
+#if 0
     #if defined(HAVE_KQUEUE)
 	&waiter_kqueue,
     #endif
@@ -48,6 +49,7 @@ static const struct waiter_impl *const waiter_impls[] = {
     #if defined(HAVE_PORT_CREATE)
 	&waiter_ports,
     #endif
+#endif
 	&waiter_poll,
 	NULL,
 };