關於Open CV - Linux

~/opencv/opencv/samples/c# ./delaunay

OpenCV Error: Unspecified error (The function is not implemented. Rebuild the
library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or
Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure
script) in cvNamedWindow, file /root/opencv/opencv/src/highgui/window.cpp,
line 110
terminate called after throwing an instance of 'cv::Exception'
Aborted

當我使用Open CV時，執行./delaunay後，出現了以上的訊息。
希望能幫我解答一下，需要安裝的也有裝(install libgtk2.0-dev and pkg-config)，
不知缺了什麼??

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