A quick try at un-breaking the Cygwin build. Whether it needs the

pgwin32_safestat remains to be determined, but in any case the current
code is not tolerable.

src/port/dirmod.c

@@ -10,7 +10,7 @@
  *	Win32 (NT, Win2k, XP).	replace() doesn't work on Win95/98/Me.
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/port/dirmod.c,v 1.52 2008/04/10 16:58:51 mha Exp $
+ *	  $PostgreSQL: pgsql/src/port/dirmod.c,v 1.53 2008/04/11 23:53:00 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -449,13 +449,15 @@ report_and_fail:
 }
 
 
-#ifdef WIN32
+#if defined(WIN32) && !defined(__CYGWIN__)
+
+#undef stat
+
 /*
  * The stat() function in win32 is not guaranteed to update the st_size
  * field when run. So we define our own version that uses the Win32 API
  * to update this field.
  */
-#undef stat
 int 
 pgwin32_safestat(const char *path, struct stat *buf)
 {
@@ -480,4 +482,5 @@ pgwin32_safestat(const char *path, struct stat *buf)
 
 	return 0;
 }
+
 #endif