add include guard
add include guard

jeffreykegler/libmarpa,pczarn/kollos,jeffreykegler/kollos,jeffreykegler/kollos,jeffreykegler/kollos,jeffreykegler/kollos,pczarn/kollos,pczarn/kollos,jeffreykegler/libmarpa,jeffreykegler/libmarpa,jeffreykegler/kollos,jeffreykegler/libmarpa,pczarn/kollos,jeffreykegler/libmarpa,pczarn/kollos