Mike Fleetwood authored Aug 12, 2017 and Curtis Gedak committed Sep 01, 2017

On CentOS 6 with polkit version 0.96 pkexec fails to execute gparted
shell wrapper as root like this:

    $ env | grep DISPLAY
    DISPLAY=:0.0
    $ sh -x /usr/local/bin/gparted
    ...
    + pkexec /usr/local/bin/gparted
    (gpartedbin:8011): Gtk-WARNING **: cannot open display:

This is because polkit didn't support setting the DISPLAY environment
variable to allow execution of X11 applications until the introduction
of the allow_gui annotation by this commit in polkit 0.102:

    https://cgit.freedesktop.org/polkit/commit/?id=7850d27017fed1834268a852350ae85381fbb110
    Bug 38769 - pkexec: Support running X11 apps

Make configure only use pkexec version 0.102 or higher as the privilege
escalation program.  Otherwise configure falls back to checking for the
other privilege escalation programs as it did before.

Bug 776437 - GParted fails to run as root under Wayland