checkwinsize should be the default

[ben]

Configuration Information [Automatically generated, do not change]:
Machine: i486
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i486' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i486-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL 
-DHAVE_CONFIG_H   -I.  -I../bash -I../bash/include -I../bash/lib   -g -O2
uname output: Linux cerise 2.6.22 #3 PREEMPT Thu Dec 13 08:16:24 PST 2007 i686 
GNU/Linux
Machine Type: i486-pc-linux-gnu

Bash Version: 3.1
Patch Level: 17
Release Status: release

Description:

When an xterm is resized while a job is running, Bash does not notice
unless the shell option "checkwinsize" is set. This behavior is rarely
(never?) desirable when Bash is being used with readline editing
enabled.


Repeat-By:

Open an xterm and run bash interactively. Type a command the wraps
past the end of the line, for example:

  echo 
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

Use C-p to view the previous line in the history. Notice that the line
is printed correctly. Use C-n to clear the line.

Run a program that takes some time, such as "sleep 30", and, during
that time, use your window manager to resize the terminal window to
have more columns.

Use C-p C-p to view the line again. Notice that the text is garbled
and useless. Curse under your breath.


Fix:

Bash should default to setting checkwinsize whenever it is started
with readline editing enabled. The bash documentation need not be
updated, as it currently says nothing about checkwinsize's default
state. Question E11 can be removed from the FAQ.