Bad GL

Developing on linux is annoying sometimes.

All the OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing
QMAKE_INCDIR_OPENGL, QMAKE_LIBDIR_OPENGL and QMAKE_LIBS_OPENGL in
/home/sarasmit/depot/qt5/qtbase/mkspecs/linux-g++.

If you get this error on Ubuntu, it may be due to bad OpenGL packages. To check if the bad GL packages issue is the cause, do:

cd /usr/lib && ls -la libGL*

If you have color turned on in your terminal you might see this:


If so you have bad GL packages, and a broken symlink. The build process cannot find the library because even though its there, the broken symlink is hiding it - hence why its colored red.

Just do (from the same directory /usr/lib) ensuring that the libGL.so.270.41.06 in the command below is the same as whatever your actual library installed:
sudo ln -s -f libGL.so.270.41.06 libGL.so

Then check (with the ls command again) to see if you now have a green link instead of a red one.

Now your builds should work again...