/INCLUDE=(directory[,...]) D=none

 Specifies where to look for %INCLUDE files,  environment  files,
 or   text   libraries.    The   compiler  applies  the  /INCLUDE
 information to the following Pascal constructs:

      %INCLUDE 'name' or %INCLUDE 'name.ext'

      [inherit('name')] or [inherit('name.ext')]

      %INCLUDE 'name(modname)'
    
 Directories are searched in the following order:

 1.  The current directory

 2.  The directories specified by /INCLUDE (if any) in the  order
     in which they were specified

 3.  SYS$LIBRARY: