Simple app links to libGL ?

[kegon]

I wrote a very simple little app using Qt. It uses a few GUI classes like QDialog, QLineEdit, QPushButton. In the project file I use QT += core gui widgets.

When I was building I was quite surprised to see near the end of the line doing the linking, -lGL

Do I have an inefficient configuration; I didn't think Qt was drawing any GUI using OpenGL.

System: g++, Linux, Qt 5.7.0.

[jsulm]

@kegon Qt uses OpenGL by default, so that's normal.
Is it an issue for your use case?

[kegon]

No issue, I just want to avoid linking to unnecessary libs.