What is windows system path?-About Devcpp Opencv
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 I have looked into it through older questions and google, however I could not get satisfied with what I got as an answer. Lately I have been trying to get devcpp work with opencv2.1. I configured it with cmake, and generated files. Then compiled it with "Mingw32-make" command through windows 7 cmd. And whatever way I tried to link stuff from devcpp, it never worked. It keeps giving me cv::freecast(void) error. I have seen some people talking about setting things to the system path. What is that system path exactly ?

Thanks in advance.