Jeroen, thanks for the idea. I asked Thomas Dickey and he said that
one should not load both libncurses.so and libncursesw.so.

I think this means that if libreadline.so is already linked against
libncurses.so, we are stuck with libncurses.so for the curses module.


If this affects users who want the wide character version, they could
file a bug report with their distro:

Thomas Dickey pointed out that there are two ways for a distro to
deal with this problem:

  1) Link libreadline against ncursesw.

  2) Split out the termcap interface (which readline uses) as
     libtinfo. This is a configure option for ncurses and SuSE
     and Redhat are doing this.


I'm attaching a new patch against py3k that makes sure that the
readline and curses modules use the same curses library.

(This does not apply to Darwin, but I don't want to touch that logic.)
  

I'm going to test the patch on py3k-cdecimal to see if it works on
the buildbots.