bug#14103: 24.3.50; Cannot perform secondary selection

[Xue Fuqiao]

I cannot perform secondary selection on my machine now (I could perform
it about two years ago).  I don't know whether it's a bug in X11 or
Emacs.  After invoking Emacs with `emacs -Q',
`M-Drag-Mouse-1'/`M-Mouse-1'/`M-Mouse-3'/`M-Mouse-2' don't work (nothing
happens).  <Meta> is labeled <Alt> on my keyboard (as in most keyboards
nowadays).  If I use <ESC>, the echo area says "ESC <mouse-1> is
undefined".

In GNU Emacs 24.3.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.4.2)
 of 2013-03-31 on debian
Bzr revision: 112197 aidalgol@no8wireless.co.nz-20130330193127-l1ts0zhbuanllxjk
Windowing system distributor `The X.Org Foundation', version 11.0.11204000
System Description:     Debian GNU/Linux 7.0 (wheezy)

Configured using:
 `configure --enable-link-time-optimization
 --enable-gtk-deprecation-warnings'

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Load-path shadows:
None found.

-- 
Xue Fuqiao
http://www.gnu.org/software/emacs/