Quoting Marie-Christine Vallet <[EMAIL PROTECTED]>:


why do I have to  include and link qt_dir and qt_libs when I set this
variable ?

SET ( QT_USE_OPENGL TRUE )


INCLUDE_DIRECTORIES (
                      ${CMAKE_CURRENT_BINARY_DIR}
                     ${QT_INCLUDE_DIR}
                     ${QT_QTOPENGL_INCLUDE_DIR}

                   )

TARGET_LINK_LIBRARIES ( mdi
                       ${QT_LIBRARIES}
                       ${QT_QTOPENGL_LIBRARIES}
                       ${QGLVIEWER_LIBRARY}
                     )

The same reason you need to #include <QApplication> in your application: you can't use QGL without QApplication.

--
Pau Garcia i Quiles
http://www.elpauer.org
(Due to my workload, I may need 10 days to answer)
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