Installing QTOpenGL

[h972]

Hey,

I'm working with Ubuntu 12.04 and can't make the OpenGL module known to qmake. How can I check whether or not it is installed on my system and/or if there's something wrong with the paths. When I try to build a QT project with qmake and QT += opengl it throws errors at each OGL call.

Thanks in advance

[rcari]

If you use OpenGL calls directly, you must also link to the OpenGL libraries on your system.

[h972]

I followed the detailed instructions here: http://doc.qt.nokia.com/4.7-snapshot/qtopengl.html

Still doesn't work. How can I check whether or not it's installed correctly at all?