Arch Linux

Ok, after removed the folder it's worked thx :)

Also make sure you don't need root privilages to access your custom yoaurt directory

Try manually removing the directory the error is referring to. Also don't run yoaurt as root.

With yaourt I have :
==> ERREUR: Impossible de supprimer le dossier /mnt/8ad14aed-119e-4f63-967c-c4bc37413d22/tmp/yaourt-tmp-melkir/aur-libgestures-xorg. Veuillez le supprimer en root.

If you are running gnome 3.15 where gdm is running wayland the cmt module does not get reloaded once X org is started, but loads ok in wayland session. Remains to be seen if 3.16 is affected by this.

You no longer have to run cmt-post-install.sh automatically it is run by the .install file.
Added a note about cmt not being being loaded if you use 'startx' rather than a display manager.

After some more use I realize that although the touchpad works fantastically, this driver's default configuration appears to mess up the mouse functionality.

I have a standard Logitech mouse with wireless USB dongle. Moving the physical mouse appears to only move the cursor a 1-2 pixels in the corresponding direction. This suggests that the sensitivity is set super low. I am looking at /etc/X11/xorg.conf.d/20-mouse.cnf and I am not sure which settings fix the mouse sensitivity/acceleration. I will play with it a bit and update here if I figure it out.

Works like a charm. Even includes options for tap to drag if the configuration file is properly adjusted. Check out joebronrichie's post (#860) here: https://bbs.archlinux.org/viewtopic.php?id=173418&p=35