[Solved]Qt 5.2.0 and -lGL issue.

I installed Qt 5.2.0 on ubuntu 12.04 LTS. When I try to compile my first program, I see the following error mainwindow.o moc_mainwindow.o -L/opt/Qt5.2.0/5.2.0/gcc_64/lib -lQt5Widgets -lQt5Gui -lQt5Core -lGL -lpthread /usr/bin/ld: cannot find -lGL collect2: error: ld returned 1 exit status I’m sure it is telling -GL module not found. Which is this module ? OpenGL ?. I continue to troubleshoot this issue. If somebody had fixed this, please do let me know. It will save my time :)