This bug was fixed in the package glmark2 - 2012.08-0ubuntu1
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glmark2 (2012.08-0ubuntu1) quantal; urgency=low
* New upstream release 2012.08 (LP: #1039736)
- Avoid crashing if gl used is not >= 2.0 (LP: #842279)
* Bumping dh compatibility level to v9
* debian/control:
The new package, based on the upstream 2012.08 version, is available at
http://people.linaro.org/~rsalveti/glmark2/ and
https://launchpad.net/~rsalveti/+archive/ppa/+packages?field.name_filter=&field.status_filter=published&field.series_filter=quantal
Packaging diff: http://paste.ubuntu.com/116007