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svn:author
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jbeich
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svn:date
V 27
2020-09-11T17:28:43.082722Z
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svn:log
V 319
graphics/glx-utils: add new port

A few popular OpenGL X11 demos from Mesa:

- glxinfo prints capabilities of OpenGL driver
- glxgears draws rotating gears and prints FPS

Inspired by:	D26077, glx-utils (CentOS, PkgSrc), glxinfo (AUR, MacPorts, Nix)
Motivated by:	testing GLX on Xwayland, avoiding cruft and extra deps

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