backport of evdev right mouse emulation code to evdev 2.5.99.901 - 2.6.0

[Jools Wills]

In case this is of use to anyone, I backported the patch from

http://cgit.freedesktop.org/xorg/driver/xf86-input-evdev/commit/?id=d9001a6b

to evdev 2.5.99.901 - 2.6.0 (prior to change to masked evalators). It
may also apply cleanly to evdev from a little earlier too.

I needed this feature but was stuck with an xserver 1.9 due to vendor
driver support, and was running evdev 2.5.99.901

Most of the changes were in Evdev3BEmuProcessAbsMotion() - can't promise
I did everything completely correctly, but it works for me.

patch attached.

Best Regards

Jools

Jools Wills
-- 
IT Consultant
Oxford Inspire
t: 01235 519446 m: 07966 577498 f: 08715046117
jools at oxfordinspire.co.uk
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