This patch adds support to put the Compositor window on a
different screen than the rest of the windows in a multi-head
setup. It uses X11's "screens" feature. A Xinerama setup is not
A new option in the Preferences, section Interface is added
where the user can specify to put the Compositor window on
"Same screen as other windows" or a specific screen number.
If the option is changed, Cinelerra must be restarted to
This patch was created with cinelerra 1.1.5, where it works
charmfully. It applies cleanly to 1.1.6, but since that version
doesn't work here (SuSE 8.2), I was unable to test it.