#1 Where is haarcascade_profileface.xml?

[Márton Németh]

I was able to complile the source found in EyeTracking-0.1b1.tar.gz under Debian. (I had to change the cv.h and highgui.h to opencv/cv.h and opencv/highgui.h resprectively.) When I try to run the software it prints the following message and exsits:

haarcascade_profileface.xml Usage: facedetect --cascade="<cascade_path>" [filename|camera_index]

Where can I find haarcascade_profileface.xml?
What is the "filename" nad the "camera_index" parameter?