-OFILES=png.o usbtmc.o commands.o
-CFLAGS=-O2 -Wall -I/opt/local/include
-LDFLAGS=-L/opt/local/lib -lusb -lreadline -lz
+OFILES=png.o usbtmc.o commands.o scope.o
+CFLAGS=-O2 -Wall -I/opt/local/include -g
+LDFLAGS=-L/opt/local/lib -lusb-1.0 -lreadline -lz