idlwave-shell-use-truename

idlwave-shell-use-truename is a variable defined in `idlw-shell.el'.
Its value is

nil

Documentation:
Non-nil means, use `file-truename' when looking for buffers.
If this variable is non-nil, Emacs will use the function `file-truename' to
resolve symbolic links in the file paths printed by e.g., STOP commands.
This means, unvisited files will be loaded under their truename.
However, when a file is already visited under a different name, IDLWAVE will
reuse that buffer.
This option was once introduced in order to avoid multiple buffers visiting
the same file. However, IDLWAVE no longer makes this mistake, so it is safe
to set this option to nil.

You can customize this variable.