Renaming Fields in RPG400

I am currently modifying an RPG400 program and need to read an external file that, unfortunately, has field names longer than six characters. I have tried renaming the fields in the I-specs, but get compiler error QRG4052 ("FIELD NAME EXCEEDS SIX CHARACTERS IN LENGTH AND IS NOT RENAMED") as soon as the compiler tries to bring in the external definitions:

The section of code and errors look like this:

FSYSPARMSIF E K DISK
...
...
IPARMREC 01
I PARMFLD1 @KEY1
I PARMFLD2 @KEY2
I PARMFLD3 @KEY3
I PARMDATA @DATA

* 4052 PARMFLD1 FIELD NAME EXCEEDS SIX CHARACTERS IN LENGTH AND IS NOT RENAMED.
* 4052 PARMFLD2 FIELD NAME EXCEEDS SIX CHARACTERS IN LENGTH AND IS NOT RENAMED.
* 4052 PARMFLD3 FIELD NAME EXCEEDS SIX CHARACTERS IN LENGTH AND IS NOT RENAMED.
* 4052 PARMDATA FIELD NAME EXCEEDS SIX CHARACTERS IN LENGTH AND IS NOT RENAMED.

I have searched the net and the archives to no avail, all the examples I find are either ILE or using field names of six or less characters. I know I can convert the source to RPG IV or call an RPG IV program to do the read, but was wondering if there is a way round this.

Thanks in advance

Jonathan


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