Maurice and Waldek,
Thank you for your replies.
The --gpc-rts option is what I need to keep the source code 10206 compliant but allow an external file name to be accessed.
I am attempting write a 10206 compliant lexical analyzer using 10206 compliant code and I needed a way to make a file name to be scanned available to the program. The code remains compliant but has a compiler dependency.
The only other way I can see is to put the source file name inside a file with a name that is specified by the analyzer and then read the specified file to get the source file name. This may not be all that bad because the specified file could also contain the names of directories to search for modules and/or other external parameters.
Thanks again,
Paul Isaacs