Sorry I'm a bit novice. What you said doesn't help me. However, it seems Webots comes with its own QT library:
Qt Code:
  1. [michele@fiordaliso ~/webots/include/qt] # ll
  2. total 32
  3. drwxr-xr-x. 3 4096 Mar 8 16:58 QtConcurrent
  4. drwxr-xr-x. 3 4096 Mar 8 16:58 QtCore
  5. drwxr-xr-x. 3 4096 Mar 8 16:58 QtGui
  6. drwxr-xr-x. 3 4096 Mar 8 16:58 QtNetwork
  7. drwxr-xr-x. 3 4096 Mar 8 16:58 QtOpenGL
  8. drwxr-xr-x. 3 4096 Mar 8 16:58 QtPrintSupport
  9. drwxr-xr-x. 3 4096 Mar 8 16:58 QtWebSockets
  10. drwxr-xr-x. 3 4096 Mar 8 16:58 QtWidgets
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Anyway, I don't know how to proceed....