+#if @REPLACE_CLOSEDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define closedir rpl_closedir
+# endif
+_GL_FUNCDECL_RPL (closedir, int, (DIR *) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (closedir, int, (DIR *));
+#else
+_GL_CXXALIAS_SYS (closedir, int, (DIR *));
+#endif
+_GL_CXXALIASWARN (closedir);
+
+#if @GNULIB_DIRFD@
+# if !@HAVE_DECL_DIRFD@ && !defined dirfd
+/* Return the file descriptor associated with the given directory stream,
+ or -1 if none exists. */
+_GL_EXTERN_C int dirfd (DIR *dir) _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef dirfd
+# if HAVE_RAW_DECL_DIRFD
+_GL_WARN_ON_USE (dirfd, "dirfd is unportable - "
+ "use gnulib module dirfd for portability");
+# endif
+#endif
+
+#if @GNULIB_FDOPENDIR@
+/* Open a directory stream visiting the given directory file
+ descriptor. Return NULL and set errno if fd is not visiting a
+ directory. On success, this function consumes fd (it will be
+ implicitly closed either by this function or by a subsequent
+ closedir). */
+# if @REPLACE_FDOPENDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef fdopendir
+# define fdopendir rpl_fdopendir
+# endif
+_GL_FUNCDECL_RPL (fdopendir, DIR *, (int fd));
+_GL_CXXALIAS_RPL (fdopendir, DIR *, (int fd));
+# else
+# if !@HAVE_FDOPENDIR@ || !@HAVE_DECL_FDOPENDIR@
+_GL_FUNCDECL_SYS (fdopendir, DIR *, (int fd));
+# endif
+_GL_CXXALIAS_SYS (fdopendir, DIR *, (int fd));
+# endif
+_GL_CXXALIASWARN (fdopendir);
+#elif defined GNULIB_POSIXCHECK
+# undef fdopendir
+# if HAVE_RAW_DECL_FDOPENDIR
+_GL_WARN_ON_USE (fdopendir, "fdopendir is unportable - "
+ "use gnulib module fdopendir for portability");
+# endif
+#endif
+
+#if @REPLACE_OPENDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define opendir rpl_opendir
+# endif
+_GL_FUNCDECL_RPL (opendir, DIR *, (const char *) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (opendir, DIR *, (const char *));
+#else
+_GL_CXXALIAS_SYS (opendir, DIR *, (const char *));