Continuing support of FORTRAN / (PL/I lost the ability to handle FORTRAN-programs (more precisely: PL/I lost interlanguage communication) with PL/I Version z/OS 6.1 - Legacy lost so to say)

In Enterprise PL/I for z/OS 6.1 use of "external entry OPTIONS(FORTRAN)" was discontinued (as described in "Compiler and Run-Time Migration Guide" of PL/I for z/OS 6.1).
When trying to compile without OPTIONS(FORTRAN) an appropriate error is reportet / compile is stopped. Compile without OPTIONS(FORTRAN) won't work either as interlanguage communication obviously don't handle the language runtime environment between PL/I and FORTRAN (no more?). Compile of PL/I without OPTIONS(FORTRAN) got through without errors reportet and Link-edit with called FORTRAN sub-programs got through too. Being aware of differences when using parameter to and from FORTRAN (as written in the Migration Guide - "The new compiler does not support the remapping of FORTRAN parameters. In particular, a twodimensional array passed from FORTRAN to PL/I will be seen by PL/I as if it were transposed.") parameters were "shiftet to the right" and in another case a Protection Exception occured with an appropriate PL/I oncode. We tried compiler option "*PROCESS DEFAULT(DUMMY(UNALIGNED))" and UNALIGNED parameters at ENTRY statement level (like DCL xyz ENTRY( UNALIGNED CHAR(8) )...but we still got errors.

"Idea" is: 

Continuous support of OPTIONS(FORTRAN) and thereby support of inter program communication PL/I calling FORTRAN and (vice versa of course) as in Version PL/I for z/OS 5.3.

FORTRAN maybe somewhat old fashioned but from my point of view it is still alive and kicking in many legacy application programs. Those programs are running quite well and it could be a huge and troublesome work to migrate FORTRAN into an other language as they have to be redesigned, implementet, integratet in PL/I and (last but supposedly not least) testet thoroughly for zero differences as outcome.

Much work and maybe trouble for: "zero differences as outcome".

In this case I prefer "never change a running system"...

...for sure!

From my point of view this is not a "services enhancement"...

...from my point of view it's some kind of a "must have".

Therefore: Please continue support of OPTIONS(FORTRAN)!