From: Roland McGrath <roland@gnu.org>
Date: Tue, 12 Nov 2002 22:02:32 +0000 (+0000)
Subject: 2002-11-12  Roland McGrath  <roland@redhat.com>
X-Git-Tag: cvs/initial~80
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=00404a964ab9b3a5205605ed7736c8ded2ed1aec;p=glibc.git

2002-11-12  Roland McGrath  <roland@redhat.com>

	* libio/libioP.h [_LIBC && !SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)]
	(_G_IO_NO_BACKWARD_COMPAT): Define it.
---

diff --git a/libio/libioP.h b/libio/libioP.h
index 105ffccecc..4fb0d6aba5 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -87,6 +87,16 @@ extern "C" {
  * object being acted on (i.e. the 'this' parameter).
  */
 
+#ifdef _LIBC
+# include <shlib-compat.h>
+# if !SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
+   /* Setting this macro disables the use of the _vtable_offset
+      bias in _IO_JUMPS_FUNCS, below.  That is only needed if we
+      want to support old binaries (see oldfileops.c).  */
+#  define _G_IO_NO_BACKWARD_COMPAT 1
+# endif
+#endif
+
 #if (!defined _IO_USE_OLD_IO_FILE \
      && (!defined _G_IO_NO_BACKWARD_COMPAT || _G_IO_NO_BACKWARD_COMPAT == 0))
 # define _IO_JUMPS_OFFSET 1