Mainly adding fd_set related header missing

miniupnpc-async/miniupnpc-async.h

@@ -19,6 +19,8 @@
 
 /* for struct sockaddr_storage */
 #include <netinet/in.h>
+/* for fd_set */
+#include <sys/select.h>
 
 #include "declspec.h"
 #include "upnpreplyparse.h"

miniupnpd/asyncsendto.h

@@ -7,6 +7,8 @@
 
 #ifndef ASYNCSENDTO_H_INCLUDED
 #define ASYNCSENDTO_H_INCLUDED
+/* for fd_set */
+#include <sys/select.h>
 
 /* sendto_schedule() : see sendto(2)
  * schedule sendto() call after delay (milliseconds) */

miniupnpd/portinuse.c

@@ -23,6 +23,7 @@
 
 #if defined(__OpenBSD__)
 #include <sys/queue.h>
+#include <sys/select.h>
 #include <kvm.h>
 #include <fcntl.h>
 #include <nlist.h>

miniupnpd/upnpevents.h

@@ -8,6 +8,8 @@
 #ifndef UPNPEVENTS_H_INCLUDED
 #define UPNPEVENTS_H_INCLUDED
 
+/* for fd_set */
+#include <sys/select.h>
 #include "config.h"
 
 #ifdef ENABLE_EVENTS