2 files changed, 5 insertions, 4 deletions

diff --git a/doc/emacs/ChangeLog b/doc/emacs/ChangeLog
index 508dbbf8021..35e635eec28 100644
--- a/doc/emacs/ChangeLog
+++ b/doc/emacs/ChangeLog
@@ -1,3 +1,8 @@
+2012-09-17  Chong Yidong  <cyd@gnu.org>
+
+        * building.texi (GDB User Interface Layout): Remove reference to
+        removed variable gdb-use-separate-io-buffer (Bug#12454).
+
 2012-09-08  Jambunathan K  <kjambunathan@gmail.com>
 
         * regs.texi (Text Registers): `C-x r +' can now be used instead of
diff --git a/doc/emacs/building.texi b/doc/emacs/building.texi
index 05ea667e5f7..21948f181fb 100644
--- a/doc/emacs/building.texi
+++ b/doc/emacs/building.texi
@@ -888,10 +888,6 @@ displays the following frame layout:
 @end group
 @end smallexample
 
-  However, if @code{gdb-use-separate-io-buffer} is @code{nil}, the I/O
-buffer does not appear and the primary source buffer occupies the full
-width of the frame.
-
 @findex gdb-restore-windows
 @findex gdb-many-windows
   If you ever change the window layout, you can restore the ``many