1 files changed, 95 insertions, 0 deletions
diff --git a/REORG.TODO/libio/oldstdfiles.c b/REORG.TODO/libio/oldstdfiles.c
new file mode 100644
index 0000000000..bed7bceca2
--- /dev/null
+++ b/REORG.TODO/libio/oldstdfiles.c
@@ -0,0 +1,95 @@
+/* Copyright (C) 1993-2017 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/>.
+
+   As a special exception, if you link the code in this file with
+   files compiled with a GNU compiler to produce an executable,
+   that does not cause the resulting executable to be covered by
+   the GNU Lesser General Public License.  This exception does not
+   however invalidate any other reasons why the executable file
+   might be covered by the GNU Lesser General Public License.
+   This exception applies to code released by its copyright holders
+   in files containing the exception.  */
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
+
+/* This file provides definitions of _IO_stdin, _IO_stdout, and _IO_stderr
+   for C code.  Compare stdstreams.cc.
+   (The difference is that here the vtable field is set to 0,
+   so the objects defined are not valid C++ objects.  On the other
+   hand, we don't need a C++ compiler to build this file.) */
+
+#define _IO_USE_OLD_IO_FILE
+#include "libioP.h"
+
+#ifdef _IO_MTSAFE_IO
+#define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
+  static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
+  struct _IO_FILE_plus NAME \
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), &_IO_old_file_jumps};
+#else
+#define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
+  struct _IO_FILE_plus NAME \
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), &_IO_old_file_jumps};
+#endif
+
+DEF_STDFILE(_IO_stdin_, 0, 0, _IO_NO_WRITES);
+DEF_STDFILE(_IO_stdout_, 1, &_IO_stdin_, _IO_NO_READS);
+DEF_STDFILE(_IO_stderr_, 2, &_IO_stdout_, _IO_NO_READS+_IO_UNBUFFERED);
+
+#if defined __GNUC__ && __GNUC__ >= 2
+
+#include <stdio.h>
+
+extern const int _IO_stdin_used;
+weak_extern (_IO_stdin_used);
+
+#undef stdin
+#undef stdout
+#undef stderr
+
+extern FILE *stdin;
+extern FILE *stdout;
+extern FILE *stderr;
+
+static void _IO_check_libio (void) __THROW __attribute__ ((constructor));
+
+/* This function determines which shared C library the application
+   was linked against. We then set up the stdin/stdout/stderr and
+   _IO_list_all accordingly. */
+
+static void
+_IO_check_libio (void)
+{
+  if (&_IO_stdin_used == NULL)
+    {
+      /* We are using the old one. */
+      _IO_stdin = stdin = (_IO_FILE *) &_IO_stdin_;
+      _IO_stdout = stdout = (_IO_FILE *) &_IO_stdout_;
+      _IO_stderr = stderr = (_IO_FILE *) &_IO_stderr_;
+      _IO_list_all = &_IO_stderr_;
+      _IO_stdin->_vtable_offset = _IO_stdout->_vtable_offset =
+	_IO_stderr->_vtable_offset = stdin->_vtable_offset =
+	stdout->_vtable_offset = stderr->_vtable_offset =
+	((int) sizeof (struct _IO_FILE)
+	 - (int) sizeof (struct _IO_FILE_complete));
+    }
+}
+
+#endif
+
+#endif