How do I tell c++ where opencv2/opencv.hpp is?

Note: this is in the context of installing cafe.

At the moment I have openCV installed at:

/home/myName/Documents/my folder/opencv/ 

However C++ can't find it here, as demonstrated by the fact that any mention of:

#include <opencv2/opencv.hpp> 

In any C++ source code, results in:

fatal error: opencv2/opencv.hpp: No such file or directory 

I tried to solve this by using the following .pc file:

prefix="/home/myName/Documents/my folder/opencv/" exec_prefix=${prefix} includedir=${prefix}/include libdir=${exec_prefix}/lib Name: openCV Description: The openCV library Version: 3.1.0 Cflags: -I${includedir}/openCV Libs: -L${libdir} -lopenCV 

And putting it in:

/usr/lib/pkgconfig 

However this had no effect. I also tried modifying the make file of cafe like this:

# Whatever else you find you need goes here. INCLUDE_DIRS := $(PYTHON_INCLUDE) /usr/local/include \ /usr/include/hdf5/serial/ \ "/home/myName/Documents/my folder/opencv/include" LIBRARY_DIRS := $(PYTHON_LIB) /usr/local/lib /usr/lib \ "/home/myName/Documents/my folder/opencv/lib" 

This also didn't work. At the moment I am out of ideas. Does anyone know how I can tell C++ where to find openCV?

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