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Does QDialog rendering needs Window system ?

  • I have read many stuff but, I am still confuse. about window system and EGL and OPENGL. I have cross compiled my simple qdialog app and try to execute in raspberry it shows shared lib not found. How can I fix this one?
    Is it possible to build application without lGL ?
    Do I need OpenGL installation in raspberry pi2 ?
    I can run all EGL examples or /opt/vc/src/hello_pi/ and shows fine in my LCD display.

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