mouse does not copy text to clipboard in Emacs

[jumianek]

Hi

I found that Emacs 24 no longer uses X11 clipboard by default but X11 selection
when highlighting text with a mouse.

The mouse highlighted text shows in:
xclip -o -selection primary
and not in
xclip -o -selection clipboard

I have the following line in ~/.emacs:
(setq x-select-enable-clipboard t)

Please help me to set up emacs to use X11 clipboard by default.

Thanks in advance.