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components/timers/alarm_timer_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <sys/timerfd.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 394 matching lines @@
 
 namespace {
 void TimerRanCallback(bool* did_run) {
   *did_run = true;
 
   base::MessageLoop::current()->PostTask(
       FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
 }
 
 bool IsAlarmTimerSupported() {
+#ifdef CLOCK_REALTIME_ALARM
   int fd = timerfd_create(CLOCK_REALTIME_ALARM, 0);
+#else
+  int fd = -1;
+#endif
 
   if (fd == -1) {
     LOG(WARNING) << "CLOCK_REALTIME_ALARM is not supported on this system.  "
                  << "Skipping test.  Upgrade to at least linux version 3.11 to "
                  << "support this timer.";
     return false;
   }
 
   close(fd);
   return true;
@@ skipping 77 matching lines @@
     if (!did_run) {
       base::RunLoop().Run();
       EXPECT_TRUE(did_run);
     }
   }
 }
 
 }  // namespace
 
 }  // namespace timers