Define EPOLLRDHUP in eventhandler_android if missing.

runtime/bin/eventhandler_android.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_ANDROID)
 
 #include "bin/eventhandler.h"
 
 #include <errno.h>  // NOLINT
 #include <pthread.h>  // NOLINT
 #include <stdio.h>  // NOLINT
 #include <string.h>  // NOLINT
 #include <sys/epoll.h>  // NOLINT
 #include <sys/stat.h>  // NOLINT
 #include <unistd.h>  // NOLINT
 #include <fcntl.h>  // NOLINT
 
 #include "bin/dartutils.h"
 #include "bin/fdutils.h"
 #include "bin/log.h"
 #include "bin/utils.h"
 #include "platform/hashmap.h"
 #include "platform/thread.h"
 #include "platform/utils.h"
 
 
+// Android doesn't define EPOLLRDHUP.
+#if !defined(EPOLLRDHUP)
+#define EPOLLRDHUP 0x2000
+#endif  // !defined(EPOLLRDHUP)
+
+
 namespace dart {
 namespace bin {
 
 static const int kInterruptMessageSize = sizeof(InterruptMessage);
 static const int kInfinityTimeout = -1;
 static const int kTimerId = -1;
 static const int kShutdownId = -2;
 
 
 // Unregister the file descriptor for a SocketData structure with epoll.
@@ skipping 325 matching lines @@
 
 uint32_t EventHandlerImplementation::GetHashmapHashFromFd(intptr_t fd) {
   // The hashmap does not support keys with value 0.
   return dart::Utils::WordHash(fd + 1);
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_ANDROID)