in lib: * addext.c, backupfile.c, fsusage.c, human.c, pathmax.h, rpmatch.c, userspec.c, xreadlink.c, xstrtol.c: Include <limits.h> without checking for HAVE_LIMITS_H. * backupfile.c, fsusage.c, hash.c, human.c, safe-read.c, userspec.c, xstrtol.c (CHAR_BIT) : Don't define, since <limits.h> is guaranteed to do that. * fatal.c: Include <stdarg.h> without checking for __STDC__. * exclude.c: Include <stdbool.h> unconditionally. * tempname.c: Include <stddef.h> unconditionally. * hash.c: Include <limits.h>, since we no longer define CHAR_BIT. * modechange.c, rpmatch.c (NULL): Don't define, since <stddef.h> does that. * quote.c: Dont include <stddef.h> or <sys/types.h>; not needed. * safe-read.c (INT_MAX): Don't define, since <limits.h> does that. * safe-read.c (TYPE_MINIMUM, TYPE_MAXIMUM): Remove; no longer needed. * xstrtol.c: Likewise. * safe-read.c: Remove TYPE_SIGNED; no longer needed. * savedir.c: Include <stddef.h> instead of defining NULL. in m4: * backupfile.m4 (gl_BACKUPFILE): Don't check for limits.h. * fsusage.m4 (gl_PREREQ_FSUSAGE_EXTRA): Likewise. * human.m4 (gl_HUMAN): Likewise. * pathmax.m4 (gl_PATHMAX): Likewise. * rpmatch.m4 (gl_FUNC_RPMATCH): Likewise. * userspec.m4 (gl_USERSPEC): Likewise. * xreadlink.m4 (gl_XREADLINK): Likewise. * m4/xstrtol.m4 (gl_PREREQ_XSTRTOL): Likewise. * quote.m4 (gl_QUOTE): Don't check for stddef.h.

--- a/lib/savedir.c
+++ b/lib/savedir.c
@@ -1,6 +1,6 @@
 /* savedir.c -- save the list of files in a directory in a string
 
-   Copyright 1990, 1997, 1998, 1999, 2000, 2001 Free Software
+   Copyright 1990, 1997, 1998, 1999, 2000, 2001, 2003 Free Software
    Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
@@ -56,9 +56,7 @@
 # include <stdlib.h>
 # include <string.h>
 #endif
-#ifndef NULL
-# define NULL 0
-#endif
+#include <stddef.h>
 
 #include "savedir.h"
 #include "xalloc.h"