compiling code with opencv - /usr/bin/ld: cannot find -lippicv

Question

When compiling some code with opencv I get this error

# g++ txtbin-03.1.cpp -o txtbin `pkg-config opencv --cflags --libs`
/usr/bin/ld: cannot fi         


        

Answer 1

libippicv.a is a third party library, so you need to explicitly provide it during compilation or make it part of your execution environment.

It is located in ~/OpenCV/opencv-3.1.0/3rdparty/ippicv/unpack/ippicv_lnx/lib/intel64/

Also, provide cmake -DWITH_IPP=ON at the time of Makefile generation.