diff --git a/ap/libc/glibc/glibc-2.23/stdio-common/dprintf.c b/ap/libc/glibc/glibc-2.23/stdio-common/dprintf.c
new file mode 100644
index 0000000..e9762e2
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/stdio-common/dprintf.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 1991-2016 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
+   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 <stdarg.h>
+#include <stdio.h>
+
+#include <libioP.h>
+#define vdprintf(d, f, a) _IO_vdprintf (d, f, a)
+
+/* Write formatted output to D, according to the format string FORMAT.  */
+/* VARARGS2 */
+int
+__dprintf (int d, const char *format, ...)
+{
+  va_list arg;
+  int done;
+
+  va_start (arg, format);
+  done = vdprintf (d, format, arg);
+  va_end (arg);
+
+  return done;
+}
+libc_hidden_def (__dprintf)
+ldbl_hidden_def (__dprintf, dprintf)
+ldbl_weak_alias (__dprintf, dprintf)