 
  
  
  
  
 
 The function current-pathname is useful for loading other files relative to a file.
  current-pathname computes a pathname from the current operation as follows:
 Uses *compile-file-pathname* .
When evaluating or compiling an Editor buffer
Uses the pathname of the buffer.
Uses the current working directory.
The argument relative-pathname is merged with the pathname computed above. The pathname-type of the result pathname is set to type if supplied, and pathname is returned.
 A useful value for  type is nil , which can be used to allow load to choose between lisp or fasl regardless of the type of the current pathname.
 Note: defsystem uses current-pathname with its : default-host argument.
 To load aux-file.lisp or the binary, regardless of the current pathname:
  (load (current-pathname "aux-file" nil))=>
#P"C:/temp/aux-file.lisp"