diff --git a/ap/libc/glibc/glibc-2.23/string/argz-create.c b/ap/libc/glibc/glibc-2.23/string/argz-create.c
new file mode 100644
index 0000000..c287054
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/string/argz-create.c
@@ -0,0 +1,53 @@
+/* Routines for dealing with '\0' separated arg vectors.
+   Copyright (C) 1995-2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <argz.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Make a '\0' separated arg vector from a unix argv vector, returning it in
+   ARGZ, and the total length in LEN.  If a memory allocation error occurs,
+   ENOMEM is returned, otherwise 0.  */
+error_t
+__argz_create (char *const argv[], char **argz, size_t *len)
+{
+  int argc;
+  size_t tlen = 0;
+  char *const *ap;
+  char *p;
+
+  for (argc = 0; argv[argc] != NULL; ++argc)
+    tlen += strlen (argv[argc]) + 1;
+
+  if (tlen == 0)
+    *argz = NULL;
+  else
+    {
+      *argz = malloc (tlen);
+      if (*argz == NULL)
+	return ENOMEM;
+
+      for (p = *argz, ap = argv; *ap; ++ap, ++p)
+	p = __stpcpy (p, *ap);
+    }
+  *len = tlen;
+
+  return 0;
+}
+weak_alias (__argz_create, argz_create)