diff --git a/contrib/pg_test_fsync/pg_test_fsync.c b/contrib/pg_test_fsync/pg_test_fsync.c
new file mode 100644
index 02a9e21..7f92bc8
*** a/contrib/pg_test_fsync/pg_test_fsync.c
--- b/contrib/pg_test_fsync/pg_test_fsync.c
***************
*** 28,39 ****
--- 28,54 ----
  #define OPS_FORMAT			"%9.3f ops/sec"
  
  /* These are macros to avoid timing the function call overhead. */
+ #ifndef WIN32
  #define START_TIMER	\
  do { \
  	alarm_triggered = false; \
  	alarm(secs_per_test); \
  	gettimeofday(&start_t, NULL); \
  } while (0)
+ #else
+ /* WIN32 doesn't support alarm, so we create a thread and sleep there */
+ #define START_TIMER	\
+ do { \
+ 	alarm_triggered = false; \
+ 	if (CreateThread(NULL, 0, process_alarm, NULL, 0, NULL) == \
+ 		INVALID_HANDLE_VALUE) \
+ 	{ \
+ 		fprintf(stderr, "Cannot create thread for alarm\n"); \
+ 		exit(1); \
+ 	} \
+ 	gettimeofday(&start_t, NULL); \
+ } while (0)
+ #endif
  
  #define STOP_TIMER	\
  do { \
*************** static void test_sync(int writes_per_op)
*** 62,68 ****
--- 77,87 ----
  static void test_open_syncs(void);
  static void test_open_sync(const char *msg, int writes_size);
  static void test_file_descriptor_sync(void);
+ #ifndef WIN32
  static void process_alarm(int sig);
+ #else
+ static DWORD WINAPI process_alarm(LPVOID param);
+ #endif
  static void signal_cleanup(int sig);
  
  #ifdef HAVE_FSYNC_WRITETHROUGH
*************** main(int argc, char *argv[])
*** 82,88 ****
--- 101,109 ----
  	/* Prevent leaving behind the test file */
  	signal(SIGINT, signal_cleanup);
  	signal(SIGTERM, signal_cleanup);
+ #ifndef WIN32
  	signal(SIGALRM, process_alarm);
+ #endif
  #ifdef SIGHUP
  	/* Not defined on win32 */
  	signal(SIGHUP, signal_cleanup);
*************** print_elapse(struct timeval start_t, str
*** 550,560 ****
--- 571,592 ----
  	printf(OPS_FORMAT "\n", per_second);
  }
  
+ #ifndef WIN32
  static void
  process_alarm(int sig)
  {
  	alarm_triggered = true;
  }
+ #else
+ static DWORD WINAPI
+ process_alarm(LPVOID param)
+ {
+ 	/* WIN32 doesn't support alarm, so we create a thread and sleep here */
+ 	Sleep(secs_per_test * 1000);
+ 	alarm_triggered = true;
+ 	ExitThread(0);
+ }
+ #endif
  
  static void
  die(const char *str)