Added implementation of lstat to port.c.

diff --git a/library/port.c b/library/port.c
index c641d69..667de08 100644
--- a/library/port.c
+++ b/library/port.c
@@ -361,6 +361,17 @@
 
 
 /***********************************************************************
+ *		lstat
+ */
+#ifndef HAVE_LSTAT
+int lstat(const char *file_name, struct stat *buf)
+{
+    return stat( file_name, buf );
+}
+#endif /* HAVE_LSTAT */
+
+
+/***********************************************************************
  *		wine_anon_mmap
  *
  * Portable wrapper for anonymous mmaps