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Bug#1314: ncurses fails in silly way on TERM=dumb

Package: ncurses-developer
Version: 1.9.3-1

chiark:~> TERM=dumb dselect
Debian GNU/Linux `dselect' package handling frontend.  * 0. [A]ccess      Choose the access method to use.                              1. [U]pdate      Update list of available packages, if possible.   2. [S]elect      Select which packages to install (or deinstall).   3. [I]nstall     Install selected software.   4. [C]onfig      Configure packages that are unconfigured.   5. [R]emove      Remove software selected for deinstallation.   6. [Q]uit        Quit dselect. Use ^P and ^N, cursor keys, initial letters, or digits to select;Press ENTER to confirm selection.   ^L to redraw screen. Version 0.93.72.  Copyright (C) 1994,1995 Ian Jackson.   This isfree software; see the GNU General Public Licence version 2 or later forcopying conditions.  There is NO warranty.  See dselect --licence for details.                        0. [A]ccess      Choose the access method to use.                            * 6. [Q]uit        Quit dselect.

As you can see, no terminal movement strings were sent, however
ncurses doesn't appear to have given any indication to dselect that
things weren't proceeding appropriately.

The ncurses manpages don't appear to document the need to make a
special `powerful-enough' check call.


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