Updated by gnulib-sync

@@ -9,8 +9,40 @@ AC_DEFUN([gl_ARGP],
   AC_REQUIRE([AC_C_INLINE])
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
   AC_REQUIRE([gl_GETOPT_SUBSTITUTE])
-  AC_CHECK_DECLS([program_invocation_name, program_invocation_short_name],,,
-    [#include <errno.h>])
+
+  AC_CHECK_DECL([program_invocation_name],
+                [AC_DEFINE(HAVE_DECL_PROGRAM_INVOCATION_NAME, 1,
+                           [Define if program_invocation_name is declared])],
+	        [AC_DEFINE(GNULIB_PROGRAM_INVOCATION_NAME, 1,
+                           [Define to 1 to add extern declaration of program_invocation_name to argp-namefrob.h])],
+                [#include <errno.h>])
+  AC_CHECK_DECL([program_invocation_short_name],
+                [AC_DEFINE(HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME, 1,
+                           [Define if program_invocation_short_name is declared])],
+	        [AC_DEFINE(GNULIB_PROGRAM_INVOCATION_SHORT_NAME, 1,
+                           [Define to 1 to add extern declaration of program_invocation_short_name to argp-namefrob.h])],
+                [#include <errno.h>])
+
+  # Check if program_invocation_name and program_invocation_short_name
+  # are defined elsewhere. It is improbable that only one of them will
+  # be defined and other not, I prefer to stay on the safe side and to
+  # test each one separately.
+  AC_MSG_CHECKING(whether program_invocation_name is defined)
+  AC_TRY_COMPILE([#include <argp.h>],
+                 [ program_invocation_name = "test"; ],
+                 [ AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME,1,
+                   [Define if program_invocation_name is defined])
+                   AC_MSG_RESULT(yes)],
+                 [ AC_MSG_RESULT(no)] )
+
+  AC_MSG_CHECKING(whether program_invocation_short_name is defined)
+  AC_TRY_COMPILE([#include <argp.h>],
+                 [ program_invocation_short_name = "test"; ],
+                 [ AC_DEFINE(HAVE_PROGRAM_INVOCATION_SHORT_NAME,1,
+                   [Define if program_invocation_short_name is defined])
+                   AC_MSG_RESULT(yes)],
+                 [ AC_MSG_RESULT(no)] )
+
   AC_CHECK_DECLS_ONCE(
      [clearerr_unlocked feof_unlocked ferror_unlocked
       fflush_unlocked fgets_unlocked fputc_unlocked fputs_unlocked

-#serial 30
+#serial 31
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005 Free
 # Software Foundation, Inc.
@@ -15,8 +15,29 @@ AC_PREREQ([2.50])
 AC_DEFUN([gl_REGEX],
 [
   AC_REQUIRE([AC_SYS_LARGEFILE]) dnl for a sufficently-wide off_t
-  AC_DEFINE([_REGEX_LARGE_OFFSETS], 1,
-    [Define if you want regoff_t to be at least as wide POSIX requires.])
+
+  AC_CACHE_CHECK([whether off_t can be used in a switch statement],
+    [gl_cv_type_off_t_switch],
+    [AC_COMPILE_IFELSE(
+      [AC_LANG_PROGRAM(
+         [AC_INCLUDES_DEFAULT],
+	 [[off_t o = -1;
+	   switch (o)
+	     {
+	     case -2:
+	       return 1;
+	     case -1:
+	       return 2;
+	     default:
+	       return 0;
+	     }
+	 ]])],
+      [gl_cv_type_off_t_switch=yes],
+      [gl_cv_type_off_t_switch=no])])
+  if test $gl_cv_type_off_t_switch = yes; then
+    AC_DEFINE([_REGEX_LARGE_OFFSETS], 1,
+      [Define if you want regoff_t to be at least as wide POSIX requires.])
+  fi
 
   MU_LIBSOURCES(
     [regcomp.c, regex.c, regex.h,

-# stdint.m4 serial 4
+# stdint.m4 serial 5
 dnl Copyright (C) 2001-2002, 2004-2005 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -12,6 +12,8 @@ AC_DEFUN([gl_STDINT_H],
 AC_REQUIRE([gt_HEADER_INTTYPES_H])
 dnl Check for <sys/inttypes.h>.
 AC_CHECK_HEADERS([sys/inttypes.h])
+dnl Check for <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
+AC_CHECK_HEADERS([sys/bitypes.h])
 
 AC_MSG_CHECKING([for stdint.h])
 AC_CACHE_VAL(gl_cv_header_stdint_h, [

 /* Word-wrapping and line-truncating streams.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -89,10 +89,6 @@ typedef FILE *argp_fmtstream_t;
 
 #else /* !ARGP_FMTSTREAM_USE_LINEWRAP */
 /* Guess we have to define our own version.  */
-
-#ifndef __const
-#define __const const
-#endif
 
 struct argp_fmtstream
 {
@@ -133,22 +129,22 @@ extern void __argp_fmtstream_free (argp_fmtstream_t __fs);
 extern void argp_fmtstream_free (argp_fmtstream_t __fs);
 
 extern ssize_t __argp_fmtstream_printf (argp_fmtstream_t __fs,
-				       __const char *__fmt, ...)
+					const char *__fmt, ...)
      __attribute__ ((__format__ (printf, 2, 3)));
 extern ssize_t argp_fmtstream_printf (argp_fmtstream_t __fs,
-				      __const char *__fmt, ...)
+				      const char *__fmt, ...)
      __attribute__ ((__format__ (printf, 2, 3)));
 
 extern int __argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
 extern int argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
 
-extern int __argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str);
-extern int argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str);
+extern int __argp_fmtstream_puts (argp_fmtstream_t __fs, const char *__str);
+extern int argp_fmtstream_puts (argp_fmtstream_t __fs, const char *__str);
 
 extern size_t __argp_fmtstream_write (argp_fmtstream_t __fs,
-				      __const char *__str, size_t __len);
+				      const char *__str, size_t __len);
 extern size_t argp_fmtstream_write (argp_fmtstream_t __fs,
-				    __const char *__str, size_t __len);
+				    const char *__str, size_t __len);
 
 /* Access macros for various bits of state.  */
 #define argp_fmtstream_lmargin(__fs) ((__fs)->lmargin)
@@ -207,7 +203,7 @@ extern int __argp_fmtstream_ensure (argp_fmtstream_t __fs, size_t __amount);
 
 ARGP_FS_EI size_t
 __argp_fmtstream_write (argp_fmtstream_t __fs,
-			__const char *__str, size_t __len)
+			const char *__str, size_t __len)
 {
   if (__fs->p + __len <= __fs->end || __argp_fmtstream_ensure (__fs, __len))
     {
@@ -220,7 +216,7 @@ __argp_fmtstream_write (argp_fmtstream_t __fs,
 }
 
 ARGP_FS_EI int
-__argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str)
+__argp_fmtstream_puts (argp_fmtstream_t __fs, const char *__str)
 {
   size_t __len = strlen (__str);
   if (__len)

@@ -89,15 +89,15 @@ struct uparams
   int dup_args_note;
 
   /* Various output columns.  */
-  int short_opt_col;
-  int long_opt_col;
-  int doc_opt_col;
-  int opt_doc_col;
-  int header_col;
-  int usage_indent;
-  int rmargin;
-
-  int valid;			/* True when the values in here are valid.  */
+  int short_opt_col;      /* column in which short options start */   
+  int long_opt_col;       /* column in which long options start */ 
+  int doc_opt_col;        /* column in which doc options start */
+  int opt_doc_col;        /* column in which option text starts */
+  int header_col;         /* column in which group headers are printed */ 
+  int usage_indent;       /* indentation of wrapped usage lines */
+  int rmargin;            /* right margin used for wrapping */
+
+  int valid;		  /* True when the values in here are valid.  */
 };
 
 /* This is a global variable, as user options are only ever read once.  */
@@ -131,91 +131,126 @@ static const struct uparam_name uparam_names[] =
   { 0 }
 };
 
-/* Read user options from the environment, and fill in UPARAMS appropiately.  */
+static void
+validate_uparams (const struct argp_state *state, struct uparams *upptr)
+{
+  const struct uparam_name *up;
+
+  for (up = uparam_names; up->name; up++)
+    {
+      if (up->is_bool
+	  || up->uparams_offs == offsetof (struct uparams, rmargin))
+	continue;
+      if (*(int *)((char *)upptr + up->uparams_offs) >= upptr->rmargin)
+	{
+	  __argp_failure (state, 0, 0,
+			  dgettext (state->root_argp->argp_domain,
+				    "\
+ARGP_HELP_FMT: %s value is less then or equal to %s"),
+			  "rmargin", up->name);
+	  return;
+	}
+    }
+  uparams = *upptr;
+  uparams.valid = 1;
+}
+
+/* Read user options from the environment, and fill in UPARAMS appropiately. */
 static void
 fill_in_uparams (const struct argp_state *state)
 {
   const char *var = getenv ("ARGP_HELP_FMT");
-
+  struct uparams new_params = uparams;
+  
 #define SKIPWS(p) do { while (isspace (*p)) p++; } while (0);
 
   if (var)
-    /* Parse var. */
-    while (*var)
-      {
-	SKIPWS (var);
-
-	if (isalpha (*var))
-	  {
-	    size_t var_len;
-	    const struct uparam_name *un;
-	    int unspec = 0, val = 0;
-	    const char *arg = var;
-
-	    while (isalnum (*arg) || *arg == '-' || *arg == '_')
-	      arg++;
-	    var_len = arg - var;
-
-	    SKIPWS (arg);
+    {
+      /* Parse var. */
+      while (*var)
+	{
+	  SKIPWS (var);
+	  
+	  if (isalpha (*var))
+	    {
+	      size_t var_len;
+	      const struct uparam_name *un;
+	      int unspec = 0, val = 0;
+	      const char *arg = var;
 
-	    if (*arg == '\0' || *arg == ',')
-	      unspec = 1;
-	    else if (*arg == '=')
-	      {
+	      while (isalnum (*arg) || *arg == '-' || *arg == '_')
 		arg++;
-		SKIPWS (arg);
-	      }
-
-	    if (unspec)
-	      {
-		if (var[0] == 'n' && var[1] == 'o' && var[2] == '-')
-		  {
-		    val = 0;
-		    var += 3;
-		    var_len -= 3;
-		  }
-		else
-		  val = 1;
-	      }
-	    else if (isdigit (*arg))
-	      {
-		val = atoi (arg);
-		while (isdigit (*arg))
+	      var_len = arg - var;
+	      
+	      SKIPWS (arg);
+	      
+	      if (*arg == '\0' || *arg == ',')
+		unspec = 1;
+	      else if (*arg == '=')
+		{
 		  arg++;
-		SKIPWS (arg);
-	      }
-
-	    for (un = uparam_names; un->name; un++)
-	      if (strlen (un->name) == var_len
-		  && strncmp (var, un->name, var_len) == 0)
+		  SKIPWS (arg);
+		}
+	      
+	      if (unspec)
 		{
-		  if (unspec && !un->is_bool)
-		    __argp_failure (state, 0, 0,
-				    dgettext (state->root_argp->argp_domain, "\
-%.*s: ARGP_HELP_FMT parameter requires a value"),
-				    (int) var_len, var);
+		  if (var[0] == 'n' && var[1] == 'o' && var[2] == '-')
+		    {
+		      val = 0;
+		      var += 3;
+		      var_len -= 3;
+		    }
 		  else
-		    *(int *)((char *)&uparams + un->uparams_offs) = val;
-		  break;
+		    val = 1;
 		}
-	    if (! un->name)
-	      __argp_failure (state, 0, 0,
-			      dgettext (state->root_argp->argp_domain, "\
+	      else if (isdigit (*arg))
+		{
+		  val = atoi (arg);
+		  while (isdigit (*arg))
+		    arg++;
+		  SKIPWS (arg);
+		}
+	      
+	      for (un = uparam_names; un->name; un++)
+		if (strlen (un->name) == var_len
+		    && strncmp (var, un->name, var_len) == 0)
+		  {
+		    if (unspec && !un->is_bool)
+		      __argp_failure (state, 0, 0,
+				      dgettext (state->root_argp->argp_domain,
+						"\
+%.*s: ARGP_HELP_FMT parameter requires a value"),
+				      (int) var_len, var);
+		    else if (val < 0)
+		      __argp_failure (state, 0, 0,
+				      dgettext (state->root_argp->argp_domain,
+						"\
+%.*s: ARGP_HELP_FMT parameter must be positive"),
+				      (int) var_len, var);
+		    else
+		      *(int *)((char *)&new_params + un->uparams_offs) = val;
+		    break;
+		  }
+	      if (! un->name)
+		__argp_failure (state, 0, 0,
+				dgettext (state->root_argp->argp_domain, "\
 %.*s: Unknown ARGP_HELP_FMT parameter"),
-			      (int) var_len, var);
+				(int) var_len, var);
 
-	    var = arg;
-	    if (*var == ',')
-	      var++;
-	  }
-	else if (*var)
-	  {
-	    __argp_failure (state, 0, 0,
-			    dgettext (state->root_argp->argp_domain,
-				      "Garbage in ARGP_HELP_FMT: %s"), var);
-	    break;
-	  }
-      }
+	      var = arg;
+	      if (*var == ',')
+		var++;
+	    }
+	  else if (*var)
+	    {
+	      __argp_failure (state, 0, 0,
+			      dgettext (state->root_argp->argp_domain,
+					"Garbage in ARGP_HELP_FMT: %s"), var);
+	      break;
+	    }
+	}
+      validate_uparams (state, &new_params);
+    }
 }
 
 /* Returns true if OPT hasn't been marked invisible.  Visibility only affects
@@ -1683,8 +1718,7 @@ char *
 __argp_short_program_name (void)
 {
 # if HAVE_DECL_PROGRAM_INVOCATION_NAME
-  char *name = strrchr (program_invocation_name, '/');
-  return name ? name + 1 : program_invocation_name;
+  return __argp_base_name (program_invocation_name);
 # else
   /* FIXME: What now? Miles suggests that it is better to use NULL,
      but currently the value is passed on directly to fputs_unlocked,

@@ -141,14 +141,21 @@
 # define putchar_unlocked(x) putchar (x)
 # endif
 
-extern char *__argp_basename (char *name);
-
 #endif /* !_LIBC */
 
 #ifndef __set_errno
 #define __set_errno(e) (errno = (e))
 #endif
 
+#if defined GNULIB_ARGP_DISABLE_DIRNAME
+# define __argp_base_name(arg) arg
+#elif defined GNULIB_ARGP_EXTERN_BASENAME
+# extern char *__argp_base_name(const char *arg);
+#else
+# include "dirname.h"
+# define __argp_base_name base_name
+#endif
+
 #if defined _LIBC || HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
 # define __argp_short_program_name()	(program_invocation_short_name)
 #else

@@ -97,7 +97,7 @@ argp_default_parser (int key, char *arg, struct argp_state *state)
       break;
     case OPT_USAGE:
       __argp_state_help (state, state->out_stream,
-		       ARGP_HELP_USAGE | ARGP_HELP_EXIT_OK);
+			 ARGP_HELP_USAGE | ARGP_HELP_EXIT_OK);
       break;
 
     case OPT_PROGNAME:		/* Set the program name.  */
@@ -109,11 +109,7 @@ argp_default_parser (int key, char *arg, struct argp_state *state)
 	 to be that, so we have to be a bit careful here.]  */
 
       /* Update what we use for messages.  */
-      state->name = strrchr (arg, '/');
-      if (state->name)
-	state->name++;
-      else
-	state->name = arg;
+      state->name = __argp_base_name (arg);
 
 #if defined _LIBC || HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
       program_invocation_short_name = state->name;
@@ -562,10 +558,7 @@ parser_init (struct parser *parser, const struct argp *argp,
 
   if (parser->state.argv == argv && argv[0])
     /* There's an argv[0]; use it for messages.  */
-    {
-      char *short_name = strrchr (argv[0], '/');
-      parser->state.name = short_name ? short_name + 1 : argv[0];
-    }
+    parser->state.name = __argp_base_name (argv[0]);
   else
     parser->state.name = __argp_short_program_name ();
 

 /* Hierarchial argument parsing, layered over getopt.
-   Copyright (C) 1995-1999,2003,2004 Free Software Foundation, Inc.
+   Copyright (C) 1995-1999,2003-2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -28,10 +28,6 @@
 #define __need_error_t
 #include <errno.h>
 
-#ifndef __const
-# define __const const
-#endif
-
 #ifndef __THROW
 # define __THROW
 #endif
@@ -82,7 +78,7 @@ struct argp_option
 {
   /* The long option name.  For more than one name for the same option, you
      can use following options with the OPTION_ALIAS flag set.  */
-  __const char *name;
+  const char *name;
 
   /* What key is returned for this option.  If > 0 and printable, then it's
      also accepted as a short option.  */
@@ -90,7 +86,7 @@ struct argp_option
 
   /* If non-NULL, this is the name of the argument associated with this
      option, which is required unless the OPTION_ARG_OPTIONAL flag is set. */
-  __const char *arg;
+  const char *arg;
 
   /* OPTION_ flags.  */
   int flags;
@@ -99,7 +95,7 @@ struct argp_option
      will be printed outdented from the normal option column, making it
      useful as a group header (it will be the first thing printed in its
      group); in this usage, it's conventional to end the string with a `:'.  */
-  __const char *doc;
+  const char *doc;
 
   /* The group this option is in.  In a long help message, options are sorted
      alphabetically within each group, and the groups presented in the order
@@ -227,7 +223,7 @@ struct argp
 {
   /* An array of argp_option structures, terminated by an entry with both
      NAME and KEY having a value of 0.  */
-  __const struct argp_option *options;
+  const struct argp_option *options;
 
   /* What to do with an option from this structure.  KEY is the key
      associated with the option, and ARG is any associated argument (NULL if
@@ -243,12 +239,12 @@ struct argp
      contains newlines, the strings separated by them are considered
      alternative usage patterns, and printed on separate lines (lines after
      the first are prefix by `  or: ' instead of `Usage:').  */
-  __const char *args_doc;
+  const char *args_doc;
 
   /* If non-NULL, a string containing extra text to be printed before and
      after the options in a long help message (separated by a vertical tab
      `\v' character).  */
-  __const char *doc;
+  const char *doc;
 
   /* A vector of argp_children structures, terminated by a member with a 0
      argp field, pointing to child argps should be parsed with this one.  Any
@@ -256,7 +252,7 @@ struct argp
      CHILDREN list.  This field is useful if you use libraries that supply
      their own argp structure, which you want to use in conjunction with your
      own.  */
-  __const struct argp_child *children;
+  const struct argp_child *children;
 
   /* If non-zero, this should be a function to filter the output of help
      messages.  KEY is either a key from an option, in which case TEXT is
@@ -268,7 +264,7 @@ struct argp
      has been done, so if any of the replacement text also needs translation,
      that should be done by the filter function.  INPUT is either the input
      supplied to argp_parse, or NULL, if argp_help was called directly.  */
-  char *(*help_filter) (int __key, __const char *__text, void *__input);
+  char *(*help_filter) (int __key, const char *__text, void *__input);
 
   /* If non-zero the strings used in the argp library are translated using
      the domain described by this string.  Otherwise the currently installed
@@ -292,7 +288,7 @@ struct argp
 struct argp_child
 {
   /* The child parser.  */
-  __const struct argp *argp;
+  const struct argp *argp;
 
   /* Flags for this child.  */
   int flags;
@@ -301,7 +297,7 @@ struct argp_child
      child options.  As a side-effect, a non-zero value forces the child
      options to be grouped together; to achieve this effect without actually
      printing a header string, use a value of "".  */
-  __const char *header;
+  const char *header;
 
   /* Where to group the child options relative to the other (`consolidated')
      options in the parent argp; the values are the same as the GROUP field
@@ -317,7 +313,7 @@ struct argp_child
 struct argp_state
 {
   /* The top level ARGP being parsed.  */
-  __const struct argp *root_argp;
+  const struct argp *root_argp;
 
   /* The argument vector being parsed.  May be modified.  */
   int argc;
@@ -411,11 +407,11 @@ struct argp_state
    routine returned a non-zero value, it is returned; otherwise 0 is
    returned.  This function may also call exit unless the ARGP_NO_HELP flag
    is set.  INPUT is a pointer to a value to be passed in to the parser.  */
-extern error_t argp_parse (__const struct argp *__restrict __argp,
+extern error_t argp_parse (const struct argp *__restrict __argp,
 			   int __argc, char **__restrict __argv,
 			   unsigned __flags, int *__restrict __arg_index,
 			   void *__restrict __input);
-extern error_t __argp_parse (__const struct argp *__restrict __argp,
+extern error_t __argp_parse (const struct argp *__restrict __argp,
 			     int __argc, char **__restrict __argv,
 			     unsigned __flags, int *__restrict __arg_index,
 			     void *__restrict __input);
@@ -426,7 +422,7 @@ extern error_t __argp_parse (__const struct argp *__restrict __argp,
    option --version is added (unless the ARGP_NO_HELP flag is used), which
    will print this string followed by a newline and exit (unless the
    ARGP_NO_EXIT flag is used).  Overridden by ARGP_PROGRAM_VERSION_HOOK.  */
-extern __const char *argp_program_version;
+extern const char *argp_program_version;
 
 /* If defined or set by the user program to a non-zero value, then a default
    option --version is added (unless the ARGP_NO_HELP flag is used), which
@@ -442,7 +438,7 @@ extern void (*argp_program_version_hook) (FILE *__restrict __stream,
    argp_help if the ARGP_HELP_BUG_ADDR flag is set (as it is by various
    standard help messages), embedded in a sentence that says something like
    `Report bugs to ADDR.'.  */
-extern __const char *argp_program_bug_address;
+extern const char *argp_program_bug_address;
 
 /* The exit status that argp will use when exiting due to a parsing error.
    If not defined or set by the user program, this defaults to EX_USAGE from
@@ -480,10 +476,10 @@ extern error_t argp_err_exit_status;
 
 /* Output a usage message for ARGP to STREAM.  FLAGS are from the set
    ARGP_HELP_*.  */
-extern void argp_help (__const struct argp *__restrict __argp,
+extern void argp_help (const struct argp *__restrict __argp,
 		       FILE *__restrict __stream,
 		       unsigned __flags, char *__restrict __name);
-extern void __argp_help (__const struct argp *__restrict __argp,
+extern void __argp_help (const struct argp *__restrict __argp,
 			 FILE *__restrict __stream, unsigned __flags,
 			 char *__name);
 
@@ -497,25 +493,25 @@ extern void __argp_help (__const struct argp *__restrict __argp,
 
 /* Output, if appropriate, a usage message for STATE to STREAM.  FLAGS are
    from the set ARGP_HELP_*.  */
-extern void argp_state_help (__const struct argp_state *__restrict __state,
+extern void argp_state_help (const struct argp_state *__restrict __state,
 			     FILE *__restrict __stream,
 			     unsigned int __flags);
-extern void __argp_state_help (__const struct argp_state *__restrict __state,
+extern void __argp_state_help (const struct argp_state *__restrict __state,
 			       FILE *__restrict __stream,
 			       unsigned int __flags);
 
 /* Possibly output the standard usage message for ARGP to stderr and exit.  */
-extern void argp_usage (__const struct argp_state *__state);
-extern void __argp_usage (__const struct argp_state *__state);
+extern void argp_usage (const struct argp_state *__state);
+extern void __argp_usage (const struct argp_state *__state);
 
 /* If appropriate, print the printf string FMT and following args, preceded
    by the program name and `:', to stderr, and followed by a `Try ... --help'
    message, then exit (1).  */
-extern void argp_error (__const struct argp_state *__restrict __state,
-			__const char *__restrict __fmt, ...)
+extern void argp_error (const struct argp_state *__restrict __state,
+			const char *__restrict __fmt, ...)
      __attribute__ ((__format__ (__printf__, 2, 3)));
-extern void __argp_error (__const struct argp_state *__restrict __state,
-			  __const char *__restrict __fmt, ...)
+extern void __argp_error (const struct argp_state *__restrict __state,
+			  const char *__restrict __fmt, ...)
      __attribute__ ((__format__ (__printf__, 2, 3)));
 
 /* Similar to the standard gnu error-reporting function error(), but will
@@ -526,31 +522,31 @@ extern void __argp_error (__const struct argp_state *__restrict __state,
    difference between this function and argp_error is that the latter is for
    *parsing errors*, and the former is for other problems that occur during
    parsing but don't reflect a (syntactic) problem with the input.  */
-extern void argp_failure (__const struct argp_state *__restrict __state,
+extern void argp_failure (const struct argp_state *__restrict __state,
 			  int __status, int __errnum,
-			  __const char *__restrict __fmt, ...)
+			  const char *__restrict __fmt, ...)
      __attribute__ ((__format__ (__printf__, 4, 5)));
-extern void __argp_failure (__const struct argp_state *__restrict __state,
+extern void __argp_failure (const struct argp_state *__restrict __state,
 			    int __status, int __errnum,
-			    __const char *__restrict __fmt, ...)
+			    const char *__restrict __fmt, ...)
      __attribute__ ((__format__ (__printf__, 4, 5)));
 
 /* Returns true if the option OPT is a valid short option.  */
-extern int _option_is_short (__const struct argp_option *__opt) __THROW;
-extern int __option_is_short (__const struct argp_option *__opt) __THROW;
+extern int _option_is_short (const struct argp_option *__opt) __THROW;
+extern int __option_is_short (const struct argp_option *__opt) __THROW;
 
 /* Returns true if the option OPT is in fact the last (unused) entry in an
    options array.  */
-extern int _option_is_end (__const struct argp_option *__opt) __THROW;
-extern int __option_is_end (__const struct argp_option *__opt) __THROW;
+extern int _option_is_end (const struct argp_option *__opt) __THROW;
+extern int __option_is_end (const struct argp_option *__opt) __THROW;
 
 /* Return the input field for ARGP in the parser corresponding to STATE; used
    by the help routines.  */
-extern void *_argp_input (__const struct argp *__restrict __argp,
-			  __const struct argp_state *__restrict __state)
+extern void *_argp_input (const struct argp *__restrict __argp,
+			  const struct argp_state *__restrict __state)
      __THROW;
-extern void *__argp_input (__const struct argp *__restrict __argp,
-			   __const struct argp_state *__restrict __state)
+extern void *__argp_input (const struct argp *__restrict __argp,
+			   const struct argp_state *__restrict __state)
      __THROW;
 
 #ifdef __USE_EXTERN_INLINES
@@ -567,13 +563,13 @@ extern void *__argp_input (__const struct argp *__restrict __argp,
 # endif
 
 ARGP_EI void
-__NTH (__argp_usage (__const struct argp_state *__state))
+__NTH (__argp_usage (const struct argp_state *__state))
 {
   __argp_state_help (__state, stderr, ARGP_HELP_STD_USAGE);
 }
 
 ARGP_EI int
-__NTH (__option_is_short (__const struct argp_option *__opt))
+__NTH (__option_is_short (const struct argp_option *__opt))
 {
   if (__opt->flags & OPTION_DOC)
     return 0;
@@ -585,7 +581,7 @@ __NTH (__option_is_short (__const struct argp_option *__opt))
 }
 
 ARGP_EI int
-__NTH (__option_is_end (__const struct argp_option *__opt))
+__NTH (__option_is_end (const struct argp_option *__opt))
 {
   return !__opt->key && !__opt->name && !__opt->doc && !__opt->group;
 }

-/* Copyright (C) 1991,92,95-98,2000,2001,2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991,92,95-98,2000,2001,2004-2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -104,13 +104,13 @@ typedef struct
 #else
     void *(*gl_readdir) (void *);
 #endif
-    void *(*gl_opendir) (__const char *);
+    void *(*gl_opendir) (const char *);
 #ifdef __USE_GNU
-    int (*gl_lstat) (__const char *__restrict, struct stat *__restrict);
-    int (*gl_stat) (__const char *__restrict, struct stat *__restrict);
+    int (*gl_lstat) (const char *__restrict, struct stat *__restrict);
+    int (*gl_stat) (const char *__restrict, struct stat *__restrict);
 #else
-    int (*gl_lstat) (__const char *__restrict, void *__restrict);
-    int (*gl_stat) (__const char *__restrict, void *__restrict);
+    int (*gl_lstat) (const char *__restrict, void *__restrict);
+    int (*gl_stat) (const char *__restrict, void *__restrict);
 #endif
   } glob_t;
 
@@ -133,13 +133,13 @@ typedef struct
 # else
     void *(*gl_readdir) (void *);
 # endif
-    void *(*gl_opendir) (__const char *);
+    void *(*gl_opendir) (const char *);
 # ifdef __USE_GNU
-    int (*gl_lstat) (__const char *__restrict, struct stat64 *__restrict);
-    int (*gl_stat) (__const char *__restrict, struct stat64 *__restrict);
+    int (*gl_lstat) (const char *__restrict, struct stat64 *__restrict);
+    int (*gl_stat) (const char *__restrict, struct stat64 *__restrict);
 # else
-    int (*gl_lstat) (__const char *__restrict, void *__restrict);
-    int (*gl_stat) (__const char *__restrict, void *__restrict);
+    int (*gl_lstat) (const char *__restrict, void *__restrict);
+    int (*gl_stat) (const char *__restrict, void *__restrict);
 # endif
   } glob64_t;
 #endif
@@ -158,24 +158,24 @@ typedef struct
    If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
    Otherwise, `glob' returns zero.  */
 #if !defined __USE_FILE_OFFSET64 || __GNUC__ < 2 || defined __GLOB_GNULIB
-extern int glob (__const char *__restrict __pattern, int __flags,
-		 int (*__errfunc) (__const char *, int),
+extern int glob (const char *__restrict __pattern, int __flags,
+		 int (*__errfunc) (const char *, int),
 		 glob_t *__restrict __pglob) __THROW;
 
 /* Free storage allocated in PGLOB by a previous `glob' call.  */
 extern void globfree (glob_t *__pglob) __THROW;
 #else
-extern int __REDIRECT_NTH (glob, (__const char *__restrict __pattern,
+extern int __REDIRECT_NTH (glob, (const char *__restrict __pattern,
 				  int __flags,
-				  int (*__errfunc) (__const char *, int),
+				  int (*__errfunc) (const char *, int),
 				  glob_t *__restrict __pglob), glob64);
 
 extern void __REDIRECT_NTH (globfree, (glob_t *__pglob), globfree64);
 #endif
 
 #if defined __USE_LARGEFILE64 && !defined __GLOB_GNULIB
-extern int glob64 (__const char *__restrict __pattern, int __flags,
-		   int (*__errfunc) (__const char *, int),
+extern int glob64 (const char *__restrict __pattern, int __flags,
+		   int (*__errfunc) (const char *, int),
 		   glob64_t *__restrict __pglob) __THROW;
 
 extern void globfree64 (glob64_t *__pglob) __THROW;
@@ -188,7 +188,7 @@ extern void globfree64 (glob64_t *__pglob) __THROW;
 
    This function is not part of the interface specified by POSIX.2
    but several programs want to use it.  */
-extern int glob_pattern_p (__const char *__pattern, int __quote) __THROW;
+extern int glob_pattern_p (const char *__pattern, int __quote) __THROW;
 #endif
 
 __END_DECLS

 /* glob_.h -- Find a path matching a pattern.
 
-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
    Written by Derek Price <derek@ximbiot.com> & Paul Eggert <eggert@CS.UCLA.EDU>
 
@@ -38,9 +38,6 @@
 #ifndef __size_t
 # define __size_t	size_t
 #endif
-#ifndef __const
-# define __const	const
-#endif
 #ifndef __restrict
 # define __restrict	restrict
 #endif

 /* Functions to compute MD5 message digest of files or memory blocks.
    according to the definition of MD5 in RFC 1321 from April 1992.
-   Copyright (C) 1995,1996,1997,1999,2000,2001,2005
+   Copyright (C) 1995,1996,1997,1999,2000,2001,2005,2006
 	Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -86,7 +86,7 @@ md5_init_ctx (struct md5_ctx *ctx)
    must be in little endian byte order.
 
    IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
+   aligned for a 32-bit value.  */
 void *
 md5_read_ctx (const struct md5_ctx *ctx, void *resbuf)
 {
@@ -102,7 +102,7 @@ md5_read_ctx (const struct md5_ctx *ctx, void *resbuf)
    prolog according to the standard and write the result to RESBUF.
 
    IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
+   aligned for a 32-bit value.  */
 void *
 md5_finish_ctx (struct md5_ctx *ctx, void *resbuf)
 {
@@ -245,14 +245,8 @@ md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx)
   if (len >= 64)
     {
 #if !_STRING_ARCH_unaligned
-/* To check alignment gcc has an appropriate operator.  Other
-   compilers don't.  */
-# if __GNUC__ >= 2
-#  define UNALIGNED_P(p) (((uintptr_t) p) % __alignof__ (uint32_t) != 0)
-# else
-#  define alignof(type) offsetof (struct { char c; type x; }, x)
-#  define UNALIGNED_P(p) (((size_t) p) % alignof (uint32_t) != 0)
-# endif
+# define alignof(type) offsetof (struct { char c; type x; }, x)
+# define UNALIGNED_P(p) (((size_t) p) % alignof (uint32_t) != 0)
       if (UNALIGNED_P (buffer))
 	while (len > 64)
 	  {
@@ -382,7 +376,7 @@ md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx)
          argument specifying the function to use.  */
 #undef OP
 #define OP(f, a, b, c, d, k, s, T)					\
-      do 								\
+      do								\
 	{								\
 	  a += f (b, c, d) + correct_words[k] + T;			\
 	  CYCLIC (a, s);						\

 /* Declaration of functions and data types used for MD5 sum computing
    library functions.
-   Copyright (C) 1995-1997,1999,2000,2001,2004,2005
+   Copyright (C) 1995-1997,1999,2000,2001,2004,2005,2006
       Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -44,12 +44,6 @@
 # endif
 #endif
 
-#ifndef __attribute__
-# if ! __GNUC_PREREQ (2,8) || __STRICT_ANSI__
-#  define __attribute__(x)
-# endif
-#endif
-
 #ifndef _LIBC
 # define __md5_buffer md5_buffer
 # define __md5_finish_ctx md5_finish_ctx

 /* Extended regular expression matching and search library.
-   Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 
@@ -182,6 +182,10 @@ typedef unsigned long int bitset_word;
 # if BITSET_WORD_BITS <= SBC_MAX
 #  error "Invalid SBC_MAX"
 # endif
+ #elif BITSET_WORD_MAX == (0xffffffff + 2) * 0xffffffff
+/* Work around a bug in 64-bit PGC (before version 6.1-2), where the
+   preprocessor mishandles large unsigned values as if they were signed.  */
+# define BITSET_WORD_BITS 64
 #else
 # error "Add case for new bitset_word size"
 #endif

-/* Copyright (C) 2001-2002, 2004-2005 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2002, 2004-2006 Free Software Foundation, Inc.
    Written by Bruno Haible, Sam Steingold, Peter Burwood.
    This file is part of gnulib.
 
@@ -33,6 +33,12 @@
 #if defined(__FreeBSD__)
 # include <sys/inttypes.h>
 #endif
+#if defined(__linux__) && HAVE_SYS_BITYPES_H
+  /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
+     int{8,16,32,64}_t and __BIT_TYPES_DEFINED__.  In libc5 >= 5.2.2 it is
+     included by <sys/types.h>.  */
+# include <sys/bitypes.h>
+#endif
 #if defined(__sun) && HAVE_SYS_INTTYPES_H
 # include <sys/inttypes.h>
   /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
@@ -48,7 +54,7 @@
      UINTPTR_MAX, PTRDIFF_MIN, PTRDIFF_MAX.  */
 # define _STDINT_H_HAVE_SYSTEM_INTTYPES
 #endif
-#if !(defined(UNIX_CYGWIN32) && defined(__BIT_TYPES_DEFINED__))
+#if !((defined(UNIX_CYGWIN32) || defined(__linux__)) && defined(__BIT_TYPES_DEFINED__))
 # define _STDINT_H_NEED_SIGNED_INT_TYPES
 #endif
 
@@ -133,11 +139,19 @@ typedef unsigned long uintptr_t;
 /* 7.18.1.5. Greatest-width integer types */
 
 #ifdef _STDINT_H_HAVE_INT64
+# ifndef intmax_t
 typedef int64_t  intmax_t;
+# endif
+# ifndef uintmax_t
 typedef uint64_t uintmax_t;
+# endif
 #else
+# ifndef intmax_t
 typedef int32_t  intmax_t;
+# endif
+# ifndef uintmax_t
 typedef uint32_t uintmax_t;
+# endif
 #endif
 
 /* 7.18.2. Limits of specified-width integer types */
@@ -230,8 +244,8 @@ typedef uint32_t uintmax_t;
 #define SIG_ATOMIC_MIN 0
 #define SIG_ATOMIC_MAX 127
 
-#ifndef SIZE_MAX
-# define SIZE_MAX (~(size_t)0)
+#ifndef SIZE_MAX /* SIZE_MAX may also be defined in config.h. */
+# define SIZE_MAX ((size_t)~(size_t)0)
 #endif
 
 /* wchar_t limits already defined in <stddef.h>.  */

 /* exit() exit codes for some BSD system programs.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -20,6 +20,8 @@
 #ifndef _SYSEXITS_H
 #define _SYSEXITS_H
 
+#define EX_OK 0 /* same value as EXIT_SUCCESS */
+
 #define EX_USAGE 64
 #define EX_DATAERR 65
 #define EX_NOINPUT 66