A dependent relationship between files is defined in a description block. A "description block" indicates the relationship among various parts of the program. It contains commands to bring all components up to date. The description file can contain up to 1024 description blocks.
Description File Description Block 旼컴컴컴컴컴컴커 旼컴컴컴컴 旼컴컴컴컴컴컴컴컴컴컴컴컴컴� � Description � � � � � Block 1 � � 퀃argets... : dependents... � 쳐컴컴컴컴컴컴캑컴컴켸 � command � � Descr Blk 2 � � command � 쳐컴컴컴컴컴컴캑컴컴커 � command � � : � � � : � 쳐컴컴컴컴컴컴캑 � � � � Descr Blk n � � � � � � � � � 읕컴컴컴컴컴컴켸 읕컴컴컴컴 읕컴컴컴컴컴컴컴컴컴컴컴컴컴�