     callbacks.o: callbacks.c callbacks.h config.h graph.h interface.h  matrix.h
     main.h  graph.o:  graph.c  graph.h interface.h matrix.h main.h interface.o:
     interface.c callbacks.h config.h graph.h interface.h  matrix.h main.h  op.h
     prefab.h  main.o:  main.c  config.h  graph.h  interface.h  matrix.h  main.h
     math.o: math.c math.h matrix.o: matrix.c math.h matrix.h op.o: op.c graph.h
     interface.h matrix.h main.h op.h prefab.o: prefab.c graph.h main.h prefab.h