+#ifdef ENCAPSULATE_FSTAT
+int sys_fstat (int fd, struct stat *buf);
+#endif
+#if defined (ENCAPSULATE_FSTAT) && !defined (DONT_ENCAPSULATE)
+# undef fstat
+/* Need to use arguments to avoid messing with struct stat */
+# define fstat(fd, buf) sys_fstat (fd, buf)
+#endif
+#if !defined (ENCAPSULATE_FSTAT) && defined (DONT_ENCAPSULATE)
+# define sys_fstat fstat
+#endif
+