K 10
svn:author
V 5
jhale
K 8
svn:date
V 27
2013-12-10T23:56:44.477116Z
K 7
svn:log
V 407
- Fix build with QT4 option (error: GL/glx.h: No such file or directory) [1]
- Specify major Qt version number to squash some CMake warnings about Qt5
- Use OPTIONS_RADIO for GUI support - build only allows use of one toolkit
- Make OpenGL support optional (off by default since it only works with
  GUI support)
- Allow OpenGL support with GTK2

Reported by:	Wolfgang Riegler <wolfgang.riegler@gmx.de> [1]

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