1 files changed, 40 insertions, 10 deletions

diff --git a/libio/oldstdfiles.c b/libio/oldstdfiles.c
index 3017109581..64c792f7a0 100644
--- a/libio/oldstdfiles.c
+++ b/libio/oldstdfiles.c
@@ -36,22 +36,52 @@
 #define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
   static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
   struct _IO_FILE_plus INAME \
-    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps}; \
-  symbol_version (INAME, NAME,)
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps};
 #else
 #define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
   struct _IO_FILE_plus INAME \
-    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps}; \
-  symbol_version (INAME, NAME,)
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_old_file_jumps};
 #endif
 
-DEF_STDFILE(_IO_old_stdin_, _IO_stdin_, 0, 0, _IO_NO_WRITES);
-DEF_STDFILE(_IO_old_stdout_, _IO_stdout_, 1, &_IO_stdin_.plus.file,
+DEF_STDFILE(_IO_stdin_, _IO_stdin_, 0, 0, _IO_NO_WRITES);
+DEF_STDFILE(_IO_stdout_, _IO_stdout_, 1, &_IO_stdin_.file,
 	    _IO_NO_READS);
-DEF_STDFILE(_IO_old_stderr_, _IO_stderr_, 2, &_IO_stdout_.plus.file,
+DEF_STDFILE(_IO_stderr_, _IO_stderr_, 2, &_IO_stdout_.file,
             _IO_NO_READS+_IO_UNBUFFERED);
 
-#if 0
-_IO_FILE *_IO_old_list_all = &_IO_stderr_.plus.file;
-symbol_version (_IO_old_list_all, _IO_list_all,);
+#if defined __GNUC__ && __GNUC__ >= 2
+
+#include <stdio.h>
+
+extern void * _IO_stdin_used;
+weak_extern (_IO_stdin_used);
+
+#undef stdin
+#undef stdout
+#undef stderr
+
+extern FILE *stdin;
+extern FILE *stdout;
+extern FILE *stderr;
+
+extern FILE *_IO_list_all;
+
+static void _IO_check_libio __P ((void)) __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 ()
+{
+  if (&_IO_stdin_used == NULL)
+    {
+      /* We are using the old one. */
+      stdin = &_IO_stdin_.file;
+      stdout = &_IO_stdout_.file;
+      stderr = _IO_list_all = &_IO_stderr_.file;
+    }
+}
+
 #endif