Build errors: Unused parameter error

[Arky r]

Hi List,

Building rgbdemo on Ubuntu 14.04 LTS.

I am blocked by two problems. First OpenCV, I don't where to find the non-free header files.

/rgbdemo/nestk/deps/eigen -I/home/arky/src/rgbdemo/nestk/deps/vectorial/include -I/home/arky/src/rgbdemo/nestk/deps/glew/include -I/home/arky/src/rgbdemo/nestk -I/home/arky/src/rgbdemo/build/nestk -I/home/arky/src/rgbdemo/build/nestk/ntk -I/home/arky/src/rgbdemo/nestk/ntk    -o CMakeFiles/nestk.dir/image/sift.o -c /home/arky/src/rgbdemo/nestk/ntk/image/sift.cpp
/home/arky/src/rgbdemo/nestk/ntk/image/feature.cpp:33:39: fatal error: opencv2/nonfree/nonfree.hpp: No such file or directory
 #include <opencv2/nonfree/nonfree.hpp>


The second is the unused parameter errors.
                                       ^
/rgbdemo/nestk/ntk/image/sift.cpp:87:1: warning: unused parameter ‘manip’ [-Wunused-parameter]
 operator>>(std::istream& is, _cmnt& manip)

Any help is much appreciated.

Cheers

--arky