Update to glibc 2.38

ChangeLog

@@ -1,3 +1,8 @@
+2023-12-08 Daryl Ronningen <relms@relms.dev>
+
+ * Updated argp to glibc 2.38
+ * configure.ac: Bumped version to 1.6.0.
+
 2021-02-10  Érico Nogueira  <ericonr@disroot.org>
 
 	* configure.ac: Bumped version to 1.4.0.

Versions

@@ -7,8 +7,5 @@ libc {
     # a*
     argp_error; argp_failure; argp_help; argp_parse; argp_state_help;
     argp_usage;
-
-    # kludge for recursive argp callers that know the magic.
-    _argp_unlock_xxx;
   }
 }

argp-ba.c

@@ -1,5 +1,5 @@
 /* Default definition for ARGP_PROGRAM_BUG_ADDRESS.
-   Copyright (C) 1996-2021 Free Software Foundation, Inc.
+   Copyright (C) 1996-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

argp-eexst.c

@@ -1,5 +1,5 @@
 /* Default definition for ARGP_ERR_EXIT_STATUS
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

argp-fmtstream.c

@@ -1,5 +1,5 @@
 /* Word-wrapping and line-truncating streams
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

argp-fmtstream.h

@@ -1,5 +1,5 @@
 /* Word-wrapping and line-truncating streams.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

argp-help.c

@@ -1,5 +1,5 @@
 /* Hierarchial argument parsing help output
-   Copyright (C) 1995-2021 Free Software Foundation, Inc.
+   Copyright (C) 1995-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -68,8 +68,17 @@ char *alloca ();
 # endif
 #endif
 
-/* can't use macro due to double evaluation */
+#if !0
-static char * dgettext_safe(const char *d, const char *m) { return m ? dgettext(d, m) : NULL; }
+# if HAVE_STRERROR_R
+#  if !HAVE_DECL_STRERROR_R
+char *strerror_r (int errnum, char *buf, size_t buflen);
+#  endif
+# else
+#  if !HAVE_DECL_STRERROR
+char *strerror (int errnum);
+#  endif
+# endif
+#endif
 
 #include <argp.h>
 #include <argp-fmtstream.h>
@@ -79,6 +88,8 @@ static char * dgettext_safe(const char *d, const char *m) { return m ? dgettext(
 # define SIZE_MAX ((size_t) -1)
 #endif
 
+/* ========================================================================== */
+
 /* User-selectable (using an environment variable) formatting parameters.
 
    These may be specified in an environment variable called `ARGP_HELP_FMT',
@@ -158,7 +169,7 @@ fill_in_uparams (const struct argp_state *state)
 {
   const char *var = getenv ("ARGP_HELP_FMT");
 
-#define SKIPWS(p) do { while (isspace (*p)) p++; } while (0);
+#define SKIPWS(p) do { while (isspace ((unsigned char) *p)) p++; } while (0);
 
   if (var)
     /* Parse var. */
@@ -166,14 +177,14 @@ fill_in_uparams (const struct argp_state *state)
       {
 	SKIPWS (var);
 
-	if (isalpha (*var))
+	if (isalpha ((unsigned char) *var))
 	  {
 	    size_t var_len;
 	    const struct uparam_name *un;
 	    int unspec = 0, val = 0;
 	    const char *arg = var;
 
-	    while (isalnum (*arg) || *arg == '-' || *arg == '_')
+	    while (isalnum ((unsigned char) *arg) || *arg == '-' || *arg == '_')
 	      arg++;
 	    var_len = arg - var;
 
@@ -198,11 +209,11 @@ fill_in_uparams (const struct argp_state *state)
 		else
 		  val = 1;
 	      }
-	    else if (isdigit (*arg))
+	    else if (isdigit ((unsigned char) *arg))
 	      {
-		val = atoi (arg);
+		char *ep;
-		while (isdigit (*arg))
+		val = strtol (arg, &ep, 10);
-		  arg++;
+		arg = ep;
 		SKIPWS (arg);
 	      }
 
@@ -245,6 +256,8 @@ fill_in_uparams (const struct argp_state *state)
       }
 }
 
+/* ========================================================================== */
+
 /* Returns true if OPT hasn't been marked invisible.  Visibility only affects
    whether OPT is displayed or used in sorting, not option shadowing.  */
 #define ovisible(opt) (! ((opt)->flags & OPTION_HIDDEN))
@@ -337,6 +350,9 @@ find_char (char ch, char *beg, char *end)
   return 0;
 }
 
+/* -------------------------------------------------------------------------- */
+/* Data structure: HOL = Help Option List                                     */
+
 struct hol_cluster;		/* fwd decl */
 
 struct hol_entry
@@ -355,11 +371,11 @@ struct hol_entry
   char *short_options;
 
   /* Entries are sorted by their group first, in the order:
-       1, 2, ..., n, 0, -m, ..., -2, -1
+       0, 1, 2, ..., n, -m, ..., -2, -1
      and then alphabetically within each group.  The default is 0.  */
   int group;
 
-  /* The cluster of options this entry belongs to, or 0 if none.  */
+  /* The cluster of options this entry belongs to, or NULL if none.  */
   struct hol_cluster *cluster;
 
   /* The argp from which this option came.  */
@@ -381,7 +397,7 @@ struct hol_cluster
      same depth (clusters always follow options in the same group).  */
   int group;
 
-  /* The cluster to which this cluster belongs, or 0 if it's at the base
+  /* The cluster to which this cluster belongs, or NULL if it's at the base
      level.  */
   struct hol_cluster *parent;
 
@@ -414,7 +430,7 @@ struct hol
 };
 
 /* Create a struct hol from the options in ARGP.  CLUSTER is the
-   hol_cluster in which these entries occur, or 0, if at the root.  */
+   hol_cluster in which these entries occur, or NULL if at the root.  */
 static struct hol *
 make_hol (const struct argp *argp, struct hol_cluster *cluster)
 {
@@ -532,6 +548,9 @@ hol_free (struct hol *hol)
   free (hol);
 }
 
+/* Iterate across the short_options of the given ENTRY.  Call FUNC for each.
+   Stop when such a call returns a non-zero value, and return this value.
+   If all FUNC invocations returned 0, return 0.  */
 static int
 hol_entry_short_iterate (const struct hol_entry *entry,
 			 int (*func)(const struct argp_option *opt,
@@ -557,6 +576,9 @@ hol_entry_short_iterate (const struct hol_entry *entry,
   return val;
 }
 
+/* Iterate across the long options of the given ENTRY.  Call FUNC for each.
+   Stop when such a call returns a non-zero value, and return this value.
+   If all FUNC invocations returned 0, return 0.  */
 static inline int
 __attribute__ ((always_inline))
 hol_entry_long_iterate (const struct hol_entry *entry,
@@ -581,7 +603,7 @@ hol_entry_long_iterate (const struct hol_entry *entry,
   return val;
 }
 
-/* Iterator that returns true for the first short option.  */
+/* A filter that returns true for the first short option of a given ENTRY.  */
 static inline int
 until_short (const struct argp_option *opt, const struct argp_option *real,
 	     const char *domain, void *cookie)
@@ -597,7 +619,7 @@ hol_entry_first_short (const struct hol_entry *entry)
 				  entry->argp->argp_domain, 0);
 }
 
-/* Returns the first valid long option in ENTRY, or 0 if there is none.  */
+/* Returns the first valid long option in ENTRY, or NULL if there is none.  */
 static const char *
 hol_entry_first_long (const struct hol_entry *entry)
 {
@@ -609,7 +631,7 @@ hol_entry_first_long (const struct hol_entry *entry)
   return 0;
 }
 
-/* Returns the entry in HOL with the long option name NAME, or 0 if there is
+/* Returns the entry in HOL with the long option name NAME, or NULL if there is
    none.  */
 static struct hol_entry *
 hol_find_entry (struct hol *hol, const char *name)
@@ -644,37 +666,93 @@ hol_set_group (struct hol *hol, const char *name, int group)
     entry->group = group;
 }
 
-/* Order by group:  0, 1, 2, ..., n, -m, ..., -2, -1.
+/* -------------------------------------------------------------------------- */
-   EQ is what to return if GROUP1 and GROUP2 are the same.  */
+/* Sorting the entries in a HOL.                                              */
+
+/* Order by group:  0, 1, 2, ..., n, -m, ..., -2, -1.  */
 static int
-group_cmp (int group1, int group2, int eq)
+group_cmp (int group1, int group2)
 {
-  if (group1 == group2)
+  if ((group1 < 0 && group2 < 0) || (group1 >= 0 && group2 >= 0))
-    return eq;
-  else if ((group1 < 0 && group2 < 0) || (group1 >= 0 && group2 >= 0))
     return group1 - group2;
   else
+    /* Return > 0 if group1 < 0 <= group2.
+       Return < 0 if group2 < 0 <= group1.  */
     return group2 - group1;
 }
 
-/* Compare clusters CL1 & CL2 by the order that they should appear in
+/* Compare clusters CL1 and CL2 by the order that they should appear in
+   output.  Assume CL1 and CL2 have the same parent.  */
+static int
+hol_sibling_cluster_cmp (const struct hol_cluster *cl1,
+			 const struct hol_cluster *cl2)
+{
+  /* Compare by group first.  */
+  int cmp = group_cmp (cl1->group, cl2->group);
+  if (cmp != 0)
+    return cmp;
+
+  /* Within a group, compare by index within the group.  */
+  return cl2->index - cl1->index;
+}
+
+/* Compare clusters CL1 and CL2 by the order that they should appear in
+   output.  Assume CL1 and CL2 are at the same depth.  */
+static int
+hol_cousin_cluster_cmp (const struct hol_cluster *cl1,
+			const struct hol_cluster *cl2)
+{
+  if (cl1->parent == cl2->parent)
+    return hol_sibling_cluster_cmp (cl1, cl2);
+  else
+    {
+      /* Compare the parent clusters first.  */
+      int cmp = hol_cousin_cluster_cmp (cl1->parent, cl2->parent);
+      if (cmp != 0)
+	return cmp;
+
+      /* Next, compare by group.  */
+      cmp = group_cmp (cl1->group, cl2->group);
+      if (cmp != 0)
+	return cmp;
+
+      /* Next, within a group, compare by index within the group.  */
+      return cl2->index - cl1->index;
+    }
+}
+
+/* Compare clusters CL1 and CL2 by the order that they should appear in
    output.  */
 static int
 hol_cluster_cmp (const struct hol_cluster *cl1, const struct hol_cluster *cl2)
 {
   /* If one cluster is deeper than the other, use its ancestor at the same
-     level, so that finding the common ancestor is straightforward.  */
+     level.  Then, go by the rule that entries that are not in a sub-cluster
-  while (cl1->depth > cl2->depth)
+     come before entries in a sub-cluster.  */
-    cl1 = cl1->parent;
+  if (cl1->depth > cl2->depth)
-  while (cl2->depth > cl1->depth)
+    {
-    cl2 = cl2->parent;
+      do
+	cl1 = cl1->parent;
+      while (cl1->depth > cl2->depth);
+      int cmp = hol_cousin_cluster_cmp (cl1, cl2);
+      if (cmp != 0)
+	return cmp;
 
-  /* Now reduce both clusters to their ancestors at the point where both have
+      return 1;
-     a common parent; these can be directly compared.  */
+    }
-  while (cl1->parent != cl2->parent)
+  else if (cl1->depth < cl2->depth)
-    cl1 = cl1->parent, cl2 = cl2->parent;
+    {
+      do
+	cl2 = cl2->parent;
+      while (cl1->depth < cl2->depth);
+      int cmp = hol_cousin_cluster_cmp (cl1, cl2);
+      if (cmp != 0)
+	return cmp;
 
-  return group_cmp (cl1->group, cl2->group, cl2->index - cl1->index);
+      return -1;
+    }
+  else
+    return hol_cousin_cluster_cmp (cl1, cl2);
 }
 
 /* Return the ancestor of CL that's just below the root (i.e., has a parent
@@ -687,17 +765,7 @@ hol_cluster_base (struct hol_cluster *cl)
   return cl;
 }
 
-/* Return true if CL1 is a child of CL2.  */
+/* Given the name of an OPTION_DOC option, modifies *NAME to start at the tail
-static int
-hol_cluster_is_child (const struct hol_cluster *cl1,
-		      const struct hol_cluster *cl2)
-{
-  while (cl1 && cl1 != cl2)
-    cl1 = cl1->parent;
-  return cl1 == cl2;
-}
-
-/* Given the name of a OPTION_DOC option, modifies NAME to start at the tail
    that should be used for comparisons, and returns true iff it should be
    treated as a non-option.  */
 static int
@@ -705,92 +773,129 @@ canon_doc_option (const char **name)
 {
   int non_opt;
   /* Skip initial whitespace.  */
-  while (isspace (**name))
+  while (isspace ((unsigned char) **name))
     (*name)++;
-  /* Decide whether this looks like an option (leading `-') or not.  */
+  /* Decide whether this looks like an option (leading '-') or not.  */
   non_opt = (**name != '-');
   /* Skip until part of name used for sorting.  */
-  while (**name && !isalnum (**name))
+  while (**name && !isalnum ((unsigned char) **name))
     (*name)++;
   return non_opt;
 }
 
-/* Order ENTRY1 & ENTRY2 by the order which they should appear in a help
+/* Order ENTRY1 and ENTRY2 by the order which they should appear in a help
-   listing.  */
+   listing.
+   This function implements a total order, that is:
+     - if cmp (entry1, entry2) < 0 and cmp (entry2, entry3) < 0,
+       then cmp (entry1, entry3) < 0.
+     - if cmp (entry1, entry2) < 0 and cmp (entry2, entry3) == 0,
+       then cmp (entry1, entry3) < 0.
+     - if cmp (entry1, entry2) == 0 and cmp (entry2, entry3) < 0,
+       then cmp (entry1, entry3) < 0.
+     - if cmp (entry1, entry2) == 0 and cmp (entry2, entry3) == 0,
+       then cmp (entry1, entry3) == 0.  */
 static int
 hol_entry_cmp (const struct hol_entry *entry1,
 	       const struct hol_entry *entry2)
 {
-  /* The group numbers by which the entries should be ordered; if either is
+  /* First, compare the group numbers.  For entries within a cluster, what
-     in a cluster, then this is just the group within the cluster.  */
+     matters is the group number of the base cluster in which the entry
-  int group1 = entry1->group, group2 = entry2->group;
+     resides.  */
+  int group1 = (entry1->cluster
+		? hol_cluster_base (entry1->cluster)->group
+		: entry1->group);
+  int group2 = (entry2->cluster
+		? hol_cluster_base (entry2->cluster)->group
+		: entry2->group);
+  int cmp = group_cmp (group1, group2);
+  if (cmp != 0)
+    return cmp;
 
-  if (entry1->cluster != entry2->cluster)
+  /* The group numbers are the same.  */
+
+  /* Entries that are not in a cluster come before entries in a cluster.  */
+  cmp = (entry1->cluster != NULL) - (entry2->cluster != NULL);
+  if (cmp != 0)
+    return cmp;
+
+  /* Compare the clusters.  */
+  if (entry1->cluster != NULL)
     {
-      /* The entries are not within the same cluster, so we can't compare them
+      cmp = hol_cluster_cmp (entry1->cluster, entry2->cluster);
-	 directly, we have to use the appropriate clustering level too.  */
+      if (cmp != 0)
-      if (! entry1->cluster)
+	return cmp;
-	/* ENTRY1 is at the `base level', not in a cluster, so we have to
-	   compare it's group number with that of the base cluster in which
-	   ENTRY2 resides.  Note that if they're in the same group, the
-	   clustered option always comes last.  */
-	return group_cmp (group1, hol_cluster_base (entry2->cluster)->group, -1);
-      else if (! entry2->cluster)
-	/* Likewise, but ENTRY2's not in a cluster.  */
-	return group_cmp (hol_cluster_base (entry1->cluster)->group, group2, 1);
-      else
-	/* Both entries are in clusters, we can just compare the clusters.  */
-	return hol_cluster_cmp (entry1->cluster, entry2->cluster);
     }
-  else if (group1 == group2)
+
-    /* The entries are both in the same cluster and group, so compare them
+  /* For entries in the same cluster, compare also the group numbers
-       alphabetically.  */
+     within the cluster.  */
+  cmp = group_cmp (entry1->group, entry2->group);
+  if (cmp != 0)
+    return cmp;
+
+  /* The entries are both in the same group and the same cluster.  */
+
+  /* 'documentation' options always follow normal options (or documentation
+     options that *look* like normal options).  */
+  const char *long1 = hol_entry_first_long (entry1);
+  const char *long2 = hol_entry_first_long (entry2);
+  int doc1 =
+    (odoc (entry1->opt) ? long1 != NULL && canon_doc_option (&long1) : 0);
+  int doc2 =
+    (odoc (entry2->opt) ? long2 != NULL && canon_doc_option (&long2) : 0);
+  cmp = doc1 - doc2;
+  if (cmp != 0)
+    return cmp;
+
+  /* Compare the entries alphabetically.  */
+
+  /* First, compare the first character of the options.
+     Put entries without *any* valid options (such as options with
+     OPTION_HIDDEN set) first.  But as they're not displayed, it doesn't
+     matter where they are.  */
+  int short1 = hol_entry_first_short (entry1);
+  int short2 = hol_entry_first_short (entry2);
+  unsigned char first1 = short1 ? short1 : long1 != NULL ? *long1 : 0;
+  unsigned char first2 = short2 ? short2 : long2 != NULL ? *long2 : 0;
+  /* Compare ignoring case.  */
+  /* Use tolower, not _tolower, since the latter has undefined behaviour
+     for characters that are not uppercase letters.  */
+  cmp = tolower (first1) - tolower (first2);
+  if (cmp != 0)
+    return cmp;
+  /* When the options start with the same letter (ignoring case), lower-case
+     comes first.  */
+  cmp = first2 - first1;
+  if (cmp != 0)
+    return cmp;
+
+  /* The first character of the options agree.  */
+
+  /* Put entries with a short option before entries without a short option.  */
+  cmp = (short1 != 0) - (short2 != 0);
+  if (cmp != 0)
+    return cmp;
+
+  /* Compare entries without a short option by comparing the long option.  */
+  if (short1 == 0)
     {
-      int short1 = hol_entry_first_short (entry1);
+      cmp = (long1 != NULL) - (long2 != NULL);
-      int short2 = hol_entry_first_short (entry2);
+      if (cmp != 0)
-      int doc1 = odoc (entry1->opt);
+	return cmp;
-      int doc2 = odoc (entry2->opt);
-      const char *long1 = hol_entry_first_long (entry1);
-      const char *long2 = hol_entry_first_long (entry2);
 
-      if (doc1)
+      if (long1 != NULL)
-	doc1 = long1 != NULL && canon_doc_option (&long1);
-      if (doc2)
-	doc2 = long2 != NULL && canon_doc_option (&long2);
-
-      if (doc1 != doc2)
-	/* `documentation' options always follow normal options (or
-	   documentation options that *look* like normal options).  */
-	return doc1 - doc2;
-      else if (!short1 && !short2 && long1 && long2)
-	/* Only long options.  */
-	return __strcasecmp (long1, long2);
-      else
-	/* Compare short/short, long/short, short/long, using the first
-	   character of long options.  Entries without *any* valid
-	   options (such as options with OPTION_HIDDEN set) will be put
-	   first, but as they're not displayed, it doesn't matter where
-	   they are.  */
 	{
-	  char first1 = short1 ? short1 : long1 ? *long1 : 0;
+	  cmp = __strcasecmp (long1, long2);
-	  char first2 = short2 ? short2 : long2 ? *long2 : 0;
+	  if (cmp != 0)
-#ifdef _tolower
+	    return cmp;
-	  int lower_cmp = _tolower (first1) - _tolower (first2);
+        }
-#else
-	  int lower_cmp = tolower (first1) - tolower (first2);
-#endif
-	  /* Compare ignoring case, except when the options are both the
-	     same letter, in which case lower-case always comes first.  */
-	  return lower_cmp ? lower_cmp : first2 - first1;
-	}
     }
-  else
+
-    /* Within the same cluster, but not the same group, so just compare
+  /* We're out of comparison criteria.  At this point, if ENTRY1 != ENTRY2,
-       groups.  */
+     the order of these entries will be unpredictable.  */
-    return group_cmp (group1, group2, 0);
+  return 0;
 }
 
-/* Version of hol_entry_cmp with correct signature for qsort.  */
+/* Variant of hol_entry_cmp with correct signature for qsort.  */
 static int
 hol_entry_qcmp (const void *entry1_v, const void *entry2_v)
 {
@@ -808,6 +913,9 @@ hol_sort (struct hol *hol)
 	   hol_entry_qcmp);
 }
 
+/* -------------------------------------------------------------------------- */
+/* Constructing the HOL.                                                      */
+
 /* Append MORE to HOL, destroying MORE in the process.  Options in HOL shadow
    any in MORE with the same name.  */
 static void
@@ -859,7 +967,8 @@ hol_append (struct hol *hol, struct hol *more)
 
 	  /* Fix up the short options pointers from HOL.  */
 	  for (e = entries, left = hol->num_entries; left > 0; e++, left--)
-	    e->short_options += (short_options - hol->short_options);
+	    e->short_options
+	      = short_options + (e->short_options - hol->short_options);
 
 	  /* Now add the short options from MORE, fixing up its entries
 	     too.  */
@@ -902,6 +1011,32 @@ hol_append (struct hol *hol, struct hol *more)
   hol_free (more);
 }
 
+/* Make a HOL containing all levels of options in ARGP.  CLUSTER is the
+   cluster in which ARGP's entries should be clustered, or 0.  */
+static struct hol *
+argp_hol (const struct argp *argp, struct hol_cluster *cluster)
+{
+  const struct argp_child *child = argp->children;
+  struct hol *hol = make_hol (argp, cluster);
+  if (child)
+    while (child->argp)
+      {
+	struct hol_cluster *child_cluster =
+	  ((child->group || child->header)
+	   /* Put CHILD->argp within its own cluster.  */
+	   ? hol_add_cluster (hol, child->group, child->header,
+			      child - argp->children, cluster, argp)
+	   /* Just merge it into the parent's cluster.  */
+	   : cluster);
+	hol_append (hol, argp_hol (child->argp, child_cluster)) ;
+	child++;
+      }
+  return hol;
+}
+
+/* -------------------------------------------------------------------------- */
+/* Printing the HOL.                                                          */
+
 /* Inserts enough spaces to make sure STREAM is at column COL.  */
 static void
 indent_to (argp_fmtstream_t stream, unsigned col)
@@ -946,7 +1081,7 @@ arg (const struct argp_option *real, const char *req_fmt, const char *opt_fmt,
 /* State used during the execution of hol_help.  */
 struct hol_help_state
 {
-  /* PREV_ENTRY should contain the previous entry printed, or 0.  */
+  /* PREV_ENTRY should contain the previous entry printed, or NULL.  */
   struct hol_entry *prev_entry;
 
   /* If an entry is in a different group from the previous one, and SEP_GROUPS
@@ -999,7 +1134,7 @@ static void
 print_header (const char *str, const struct argp *argp,
 	      struct pentry_state *pest)
 {
-  const char *tstr = dgettext_safe (argp->argp_domain, str);
+  const char *tstr = dgettext (argp->argp_domain, str);
   const char *fstr = filter_doc (tstr, ARGP_KEY_HELP_HEADER, argp, pest->state);
 
   if (fstr)
@@ -1024,6 +1159,16 @@ print_header (const char *str, const struct argp *argp,
     free ((char *) fstr);
 }
 
+/* Return true if CL1 is a child of CL2.  */
+static int
+hol_cluster_is_child (const struct hol_cluster *cl1,
+		      const struct hol_cluster *cl2)
+{
+  while (cl1 && cl1 != cl2)
+    cl1 = cl1->parent;
+  return cl1 == cl2;
+}
+
 /* Inserts a comma if this isn't the first item on the line, and then makes
    sure we're at least to column COL.  If this *is* the first item on a line,
    prints any pending whitespace/headers that should precede this line. Also
@@ -1153,7 +1298,7 @@ hol_entry_help (struct hol_entry *entry, const struct argp_state *state,
     }
   else
     {
-      const char *tstr = real->doc ? dgettext_safe (state == NULL ? NULL
+      const char *tstr = real->doc ? dgettext (state == NULL ? NULL
 					       : state->root_argp->argp_domain,
 					       real->doc) : 0;
       const char *fstr = filter_doc (tstr, real->key, entry->argp, state);
@@ -1337,29 +1482,6 @@ hol_usage (struct hol *hol, argp_fmtstream_t stream)
     }
 }
 
-/* Make a HOL containing all levels of options in ARGP.  CLUSTER is the
-   cluster in which ARGP's entries should be clustered, or 0.  */
-static struct hol *
-argp_hol (const struct argp *argp, struct hol_cluster *cluster)
-{
-  const struct argp_child *child = argp->children;
-  struct hol *hol = make_hol (argp, cluster);
-  if (child)
-    while (child->argp)
-      {
-	struct hol_cluster *child_cluster =
-	  ((child->group || child->header)
-	   /* Put CHILD->argp within its own cluster.  */
-	   ? hol_add_cluster (hol, child->group, child->header,
-			      child - argp->children, cluster, argp)
-	   /* Just merge it into the parent's cluster.  */
-	   : cluster);
-	hol_append (hol, argp_hol (child->argp, child_cluster)) ;
-	child++;
-      }
-  return hol;
-}
-
 /* Calculate how many different levels with alternative args strings exist in
    ARGP.  */
 static size_t
@@ -1390,7 +1512,7 @@ argp_args_usage (const struct argp *argp, const struct argp_state *state,
   char *our_level = *levels;
   int multiple = 0;
   const struct argp_child *child = argp->children;
-  const char *tdoc = dgettext_safe (argp->argp_domain, argp->args_doc), *nl = 0;
+  const char *tdoc = dgettext (argp->argp_domain, argp->args_doc), *nl = 0;
   const char *fdoc = filter_doc (tdoc, ARGP_KEY_HELP_ARGS_DOC, argp, state);
 
   if (fdoc)
@@ -1439,7 +1561,7 @@ argp_args_usage (const struct argp *argp, const struct argp_state *state,
 }
 
 /* Print the documentation for ARGP to STREAM; if POST is false, then
-   everything preceeding a `\v' character in the documentation strings (or
+   everything preceding a `\v' character in the documentation strings (or
    the whole string, for those with none) is printed, otherwise, everything
    following the `\v' character (nothing for strings without).  Each separate
    bit of documentation is separated a blank line, and if PRE_BLANK is true,
@@ -1455,7 +1577,7 @@ argp_doc (const struct argp *argp, const struct argp_state *state,
   void *input = 0;
   int anything = 0;
   size_t inp_text_limit = 0;
-  const char *doc = dgettext_safe (argp->argp_domain, argp->doc);
+  const char *doc = dgettext (argp->argp_domain, argp->doc);
   const struct argp_child *child = argp->children;
 
   if (doc)
@@ -1472,7 +1594,7 @@ argp_doc (const struct argp *argp, const struct argp_state *state,
     {
       if (inp_text_limit)
 	/* Copy INP_TEXT so that it's nul-terminated.  */
-	inp_text = strndup (inp_text, inp_text_limit);
+	inp_text = __strndup (inp_text, inp_text_limit);
       input = __argp_input (argp, state);
       text =
 	(*argp->help_filter) (post
@@ -1856,7 +1978,11 @@ __argp_failure_internal (const struct argp_state *state, int status,
 #else
 	      putc_unlocked (':', stream);
 	      putc_unlocked (' ', stream);
+# ifdef HAVE_STRERROR_R
+	      fputs (__strerror_r (errnum, buf, sizeof (buf)), stream);
+# else
 	      fputs (strerror (errnum), stream);
+# endif
 #endif
 	    }
 

argp-namefrob.h

@@ -1,5 +1,5 @@
 /* Name frobnication for compiling argp outside of glibc
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

argp-pv.c

@@ -1,5 +1,5 @@
 /* Default definition for ARGP_PROGRAM_VERSION.
-   Copyright (C) 1996-2021 Free Software Foundation, Inc.
+   Copyright (C) 1996-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

argp-pvh.c

@@ -1,5 +1,5 @@
 /* Default definition for ARGP_PROGRAM_VERSION_HOOK.
-   Copyright (C) 1996-2021 Free Software Foundation, Inc.
+   Copyright (C) 1996-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

argp-test.c

@@ -1,5 +1,5 @@
 /* Test program for argp argument parser
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1997-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 

configure.ac

@@ -1,16 +1,17 @@
 dnl Process this file with autoconf to produce a configure script.
 
 dnl This configure.ac is only for building a standalone argp library.
-AC_PREREQ(2.54)
+AC_PREREQ([2.71])
-AC_INIT(argp-ba.c)
+AC_INIT
-AM_INIT_AUTOMAKE(argp, standalone-1.4.0)
+AC_CONFIG_SRCDIR([argp-ba.c])
+AM_INIT_AUTOMAKE(argp, standalone-1.6.0)
 AM_CONFIG_HEADER(config.h)
 
 # GNU libc defaults to supplying the ISO C library functions only. The
 # _GNU_SOURCE define enables these extensions, in particular we want
 # errno.h to declare program_invocation_name. Enable it on all
 # systems; no problems have been reported with it so far.
-AC_GNU_SOURCE
+AC_USE_SYSTEM_EXTENSIONS
 	
 # Checks for programs.
 AC_PROG_CC
@@ -19,13 +20,21 @@ AC_PROG_RANLIB
 AM_PROG_CC_STDC
 
 if test "x$am_cv_prog_cc_stdc" = xno ; then
-  AC_ERROR([the C compiler doesn't handle ANSI-C])
+  AC_MSG_ERROR(the C compiler doesn't handle ANSI-C)
 fi
 
 # Checks for libraries.
 
 # Checks for header files.
-AC_HEADER_STDC
+m4_warn([obsolete],
+[The preprocessor macro `STDC_HEADERS' is obsolete.
+  Except in unusual embedded environments, you can safely include all
+  ISO C90 headers unconditionally.])dnl
+# Autoupdate added the next two lines to ensure that your configure
+# script's behavior did not change.  They are probably safe to remove.
+AC_CHECK_INCLUDES_DEFAULT
+AC_PROG_EGREP
+
 AC_CHECK_HEADERS(limits.h malloc.h unistd.h libintl.h)
 
 # Checks for typedefs, structures, and compiler characteristics.
@@ -49,9 +58,7 @@ AC_DEFUN([ARGP_CHECK_FUNC],
    AH_TEMPLATE(AS_TR_CPP(HAVE_[]ac_func),
                [Define to 1 if you have the `]ac_func[' function.])
    AC_CACHE_CHECK([for $2], ac_var,
-     [AC_TRY_LINK([$1], [$2],
+     [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])],[AS_VAR_SET(ac_var, yes)],[AS_VAR_SET(ac_var, no)])])
-		  [AS_VAR_SET(ac_var, yes)],
-		  [AS_VAR_SET(ac_var, no)])])
    if test AS_VAR_GET(ac_var) = yes ; then
      ifelse([$3],,
 	    [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]ac_func))],
@@ -93,4 +100,5 @@ fi
 
 CPPFLAGS="$CPPFLAGS -I$srcdir"
 
-AC_OUTPUT(Makefile testsuite/Makefile)
+AC_CONFIG_FILES([Makefile testsuite/Makefile])
+AC_OUTPUT

mempcpy.c

@@ -1,18 +1,39 @@
-/* strndup.c
+/* Copy memory to memory until the specified number of bytes
- *
+   has been copied, return pointer to following byte.
- */
+   Overlap is NOT handled correctly.
+   Copyright (C) 1991-2023 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Torbjorn Granlund (tege@sics.se).
 
-/* Written by Niels Möller <nisse@lysator.liu.se>
+   The GNU C Library is free software; you can redistribute it and/or
- *
+   modify it under the terms of the GNU Lesser General Public
- * This file is hereby placed in the public domain.
+   License as published by the Free Software Foundation; either
- */
+   version 2.1 of the License, or (at your option) any later version.
 
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#define NO_MEMPCPY_STPCPY_REDIRECT
 #include <string.h>
 
-void *
+#undef mempcpy
-mempcpy (void *to, const void *from, size_t size)
+#undef __mempcpy
-{
-  memcpy(to, from, size);
-  return (char *) to + size;
-}
 
+#ifndef MEMPCPY
+# define MEMPCPY __mempcpy
+#endif
+
+void *
+MEMPCPY (void *dest, const void *src, size_t len)
+{
+  return memcpy (dest, src, len) + len;
+}
+libc_hidden_def (__mempcpy)
+weak_alias (__mempcpy, mempcpy)
+libc_hidden_builtin_def (mempcpy)

strchrnul.c

@@ -1,21 +1,56 @@
-/* strchrnul.c
+/* Copyright (C) 1991-2023 Free Software Foundation, Inc.
- *
+   This file is part of the GNU C Library.
- */
 
-/* Written by Niels Möller <nisse@lysator.liu.se>
+   The GNU C Library is free software; you can redistribute it and/or
- *
+   modify it under the terms of the GNU Lesser General Public
- * This file is hereby placed in the public domain.
+   License as published by the Free Software Foundation; either
- */
+   version 2.1 of the License, or (at your option) any later version.
 
-/* FIXME: What is this function supposed to do? My guess is that it is
+   The GNU C Library is distributed in the hope that it will be useful,
- * like strchr, but returns a pointer to the NUL character, not a NULL
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
- * pointer, if the character isn't found. */
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
 
-char *strchrnul(const char *s, int c)
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <libc-pointer-arith.h>
+#include <string-fzb.h>
+#include <string-fzc.h>
+#include <string-fzi.h>
+#include <string-shift.h>
+#include <string.h>
+
+#undef __strchrnul
+#undef strchrnul
+
+#ifdef STRCHRNUL
+# define __strchrnul STRCHRNUL
+#endif
+
+/* Find the first occurrence of C in S or the final NUL byte.  */
+char *
+__strchrnul (const char *str, int c_in)
 {
-  const char *p = s;
+  /* Align pointer to sizeof op_t.  */
-  while (*p && (*p != c))
+  uintptr_t s_int = (uintptr_t) str;
-    p++;
+  const op_t *word_ptr = (const op_t *) PTR_ALIGN_DOWN (str, sizeof (op_t));
 
-  return (char *) p;
+  op_t repeated_c = repeat_bytes (c_in);
+
+  op_t word = *word_ptr;
+  find_t mask = shift_find (find_zero_eq_all (word, repeated_c), s_int);
+  if (mask != 0)
+    return (char *) str + index_first (mask);
+
+  do
+    word = *++word_ptr;
+  while (! has_zero_eq (word, repeated_c));
+
+  return (char *) word_ptr + index_first_zero_eq (word, repeated_c);
 }
+#ifndef STRCHRNUL
+libc_hidden_def (__strchrnul)
+weak_alias (__strchrnul, strchrnul)
+#endif

strndup.c

@@ -1,31 +1,56 @@
-/* strndup.c
+/* Copyright (C) 1996-2023 Free Software Foundation, Inc.
- *
+   This file is part of the GNU C Library.
- */
 
-/* Written by Niels Möller <nisse@lysator.liu.se>
+   The GNU C Library is free software; you can redistribute it and/or
- *
+   modify it under the terms of the GNU Lesser General Public
- * This file is hereby placed in the public domain.
+   License as published by the Free Software Foundation; either
- */
+   version 2.1 of the License, or (at your option) any later version.
 
-#include <stdlib.h>
+   The GNU C Library is distributed in the hope that it will be useful,
-#include <string.h>
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#if 1 || defined STDC_HEADERS
+# include <stdlib.h>
+# include <string.h>
+#else
+char *malloc ();
+#endif
+
+#undef __strndup
+#undef strndup
+
+#ifndef weak_alias
+# define __strndup strndup
+#endif
 
 char *
-strndup (const char *s, size_t size)
+__strndup (const char *s, size_t n)
 {
-  char *r;
+  size_t len = __strnlen (s, n);
-  char *end = memchr(s, 0, size);
+  char *new = (char *) malloc (len + 1);
 
-  if (end)
+  if (new == NULL)
-    /* Length + 1 */
+    return NULL;
-    size = end - s + 1;
 
-  r = malloc(size);
+  new[len] = '\0';
-
+  return (char *) memcpy (new, s, len);
-  if (size)
-    {
-      memcpy(r, s, size-1);
-      r[size-1] = '\0';
-    }
-  return r;
 }
+#ifdef libc_hidden_def
+libc_hidden_def (__strndup)
+#endif
+#ifdef weak_alias
+weak_alias (__strndup, strndup)
+#endif