initialize epoll_fd even if we have no listen fd, patch by Jose Bollo

AUTHORS

@@ -60,6 +60,7 @@ Silvio Clecio <silvioprog@gmail.com>
 Robert D Kosisko <rkocisko@gmail.com>
 Tal Moaz <tmoaz@cisco.com>
 Dirk Brinkmeier
+Jose Bollo <jobol@nonadev.net>
 
 Documentation contributions also came from:
 Marco Maggi <marco.maggi-ipsu@poste.it>

ChangeLog

@@ -1,3 +1,6 @@
+Thu Nov  1 16:29:59 CET 2018
+	Enable using epoll() without listen socket. -JB
+
 Sat Oct 20 12:44:16 CEST 2018
 	In thread-per-connection mode, signal main thread for
 	thread termination for instant clean-up and application

src/microhttpd/daemon.c

@@ -1,6 +1,6 @@
 /*
   This file is part of libmicrohttpd
-  Copyright (C) 2007-2017 Daniel Pittman and Christian Grothoff
+  Copyright (C) 2007-2018 Daniel Pittman and Christian Grothoff
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -5990,8 +5990,7 @@ MHD_start_daemon_va (unsigned int flags,
 
 #ifdef EPOLL_SUPPORT
   if ( (0 != (*pflags & MHD_USE_EPOLL)) &&
-       (0 == daemon->worker_pool_size) &&
-       (0 == (*pflags & MHD_USE_NO_LISTEN_SOCKET)) )
+       (0 == daemon->worker_pool_size) )
     {
       if (0 != (*pflags & MHD_USE_THREAD_PER_CONNECTION))
 	{