AI libraries

I typically see AI projects written in Python or other languages. Very few seem to use C or C++ unless it's for specific functionality. In that case, it's usually just a library written in C or C++ and it's called from another language. Would be very interested in finding libraries and other AI related resources specifically in C. I have a start to a list of C/C++ AI libraries and programs: Human Verification If anyone has other C/C++ resources to add, please post about them. Thank you.