JAR=Ekman.jar
CLASS=Ekman.class
JAVA=Ekman.java 
SUBCRASS=VColumn.class HVectorColumn.class Transpose3d.class

all: $(JAR) $(SUBCRASS)

$(JAR): $(CLASS) $(SUBCRASS)
	jar cvf $(JAR) *.class

$(CLASS): $(JAVA)
	javac $*.java

.java.class:
	javac $<