[Bug-GnuCOBOL] handling of parameters passed BY VALUE Version 3.1 Rc1 via MinGW

[Bruce Zupek]

I tripped on this one.
Albeit you can call by value - apparently it is not possible to receive parameters By Value (the called code turtles on the Procedure Division Using.)
/SIMON/VFILE1.COB:96: warning: handling of parameters passed BY VALUE is unfinished; implementation is likely to be changed.

I have a "mixed" case use.
Parameters in CBL_OPEN_VFILE / CLOSE_VFILE are called by reference.
3 of the 4 parameters in CBL_READ_VFILE / WRITE_VFILE are called by Value. 

I can't figure out a Cobol process to resolve this issue - especially if I do not want to change the original application Cobol source.

Any ideas ?
Any guess as to when it BY VALUE will be available by a called program ?

Please advise.
Thanks,
Bruce Zupek