depend file

   P acu    Advanced C Utilities
            Issue 4 Version 1
   P cc     C Programming Language
            Issue 4 Version 1
   P dfm    Directory and File Management Utilities
   P ed     Editing Utilities
   P esg    Extended Software Generation Utilities
            Issue 4 Version 1
   P graph  Graphics Utilities
   P rx     Remote Execution Utilities
   P sgs    Software Generation Utilities
            Issue 4 Version 1
   P shell  Shell Programming Utilities
   P sys    System Header Files
            Release 3.1