Library /sys$common/syshlp/BASICHELP.HLB  —  Compile time errors, DUPLNFND
  INFORMATION - A line number in an include file is the same as  a  line
  number in the main source file.

  WARNING - There are two lines in the main source file  with  the  same
  line  number.   BASIC  keeps the second occurrence of the line number.
  Correct the source by changing one of the line numbers  to  an  unused
  number.
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