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Original author(s)Matthieu Herrb
Developer(s)The OpenBSD Project
Initial release1 November 2007; 11 years ago (2007-11-01)[1]
Repository Edit this at Wikidata
Operating systemOpenBSD
TypeWindowing system

Xenocara is the OpenBSD build infrastructure for the project's customised X.Org Server that utilises a dedicated _x11 user by default to drop privileges and perform privilege separation in accordance to OpenBSD's "least privilege" policy. The patches for applying this rather important security protection were provided to upstream for the benefit of other Unix-like systems such as Linux, however the care to apply and maintain them has unfortunately not happened to date.

Until release 6.9, X.Org used imake but recent modularised versions have switched to GNU autotools. Xenocara uses BSD make and is designed to ease building and maintenance of modularised X.Org within the OpenBSD CVS tree. It first appeared with OpenBSD 4.2, released on 1 November 2007; 11 years ago (2007-11-01);[1] before that, OpenBSD had a different build system and repositories for X in CVS,[2] which have since been completely retired in favour of Xenocara.[3]

Apart from X.Org, Xenocara builds several other projects, including window managers FVWM and cwm.


  1. ^ a b Federico Biancuzzi (2007-11-01). "Puffy's Marathon: What's New in OpenBSD 4.2". O'Reilly Media. Retrieved 2019-03-03. Lay summary.
  2. ^ Matthieu Herrb (2007-02-24). "fosdem07-xenocara.pdf" (PDF). OpenBSD / FOSDEM. Retrieved 2019-03-03.
  3. ^ "cvsweb". OpenBSD. Archived from the original on 2010-11-25. Retrieved 2019-03-03.

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