* lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.

* lib/xalloc.h, lib/xmalloc.c@ Update.

lib/malloc.c

@@ -0,0 +1,38 @@
+/* Work around bug on some systems where malloc (0) fails.
+   Copyright (C) 1997, 1998 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
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* written by Jim Meyering */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef malloc
+
+#include <sys/types.h>
+
+char *malloc ();
+
+/* Allocate an N-byte block of memory from the heap.
+   If N is zero, allocate a 1-byte block.  */
+
+char *
+rpl_malloc (size_t n)
+{
+  if (n == 0)
+    n = 1;
+  return malloc (n);
+}

lib/realloc.c

@@ -0,0 +1,44 @@
+/* Work around bug on some systems where realloc (NULL, 0) fails.
+   Copyright (C) 1997 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
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* written by Jim Meyering */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef realloc
+
+#include <sys/types.h>
+
+char *malloc ();
+char *realloc ();
+
+/* Change the size of an allocated block of memory P to N bytes,
+   with error checking.  If N is zero, change it to 1.  If P is NULL,
+   use malloc.  */
+
+char *
+rpl_realloc (p, n)
+     char *p;
+     size_t n;
+{
+  if (n == 0)
+    n = 1;
+  if (p == 0)
+    return malloc (n);
+  return realloc (p, n);
+}

lib/xalloc.h

@@ -1,5 +1,5 @@
 /* xalloc.h -- malloc with out-of-memory checking
-   Copyright (C) 1990-1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1990-1998, 1999, 2000 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
@@ -46,9 +46,9 @@ extern int xalloc_exit_failure;
 extern void (*xalloc_fail_func) PARAMS ((void));
 
 /* If XALLOC_FAIL_FUNC is undefined or a function that returns, this
-   message must be non-NULL.  It is translated via gettext.
-   The default value is "Memory exhausted".  */
-extern char *const xalloc_msg_memory_exhausted;
+   message is output.  It is translated via gettext.
+   Its value is "memory exhausted".  */
+extern char const xalloc_msg_memory_exhausted[];
 
 /* This function is always triggered when memory is exhausted.  It is
    in charge of honoring the three previous items.  This is the

lib/xmalloc.c

@@ -1,5 +1,5 @@
 /* xmalloc.c -- malloc with out of memory checking
-   Copyright (C) 1990-1997, 98, 99 Free Software Foundation, Inc.
+   Copyright (C) 1990-1999, 2000 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
@@ -63,7 +63,7 @@ void (*xalloc_fail_func) PARAMS ((void)) = 0;
 
 /* If XALLOC_FAIL_FUNC is NULL, or does return, display this message
    before exiting when memory is exhausted.  Goes through gettext. */
-char *const xalloc_msg_memory_exhausted = N_("Memory exhausted");
+char const xalloc_msg_memory_exhausted[] = N_("memory exhausted");
 
 void
 xalloc_die (void)
@@ -91,8 +91,7 @@ xmalloc (size_t n)
 }
 
 /* Change the size of an allocated block of memory P to N bytes,
-   with error checking.
-   If P is NULL, run xmalloc.  */
+   with error checking.  */
 
 void *
 xrealloc (void *p, size_t n)