[Xwayland] Check for listenfd option #743
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Recent versions of Xwayland can allow or disallow X11 clients from different endianess to connect. Add a setting to configure this feature from Muffin, who spawns Xwayland. Disabled by default, since this feature have potential security issues.
`-listen` is deprecated in modern versions of Xwayland and replaced by `-listenfd`. Use the pkg-config variable "have_listenfd" (if available) from Xwayland to determine if we should use that option, to avoid a deprecation warning when spawning Xwayland.
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-listenis deprecated in modern versions of Xwayland and replacedby
-listenfd. Use the pkg-config variable "have_listenfd" (if available) from Xwaylandto determine if we should use that option, to avoid a deprecation
warning when spawning Xwayland.
Depends on #738 as it includes args parser improvements