RPG File Input/Output Specs

I've been writing some data conversion programs which read in an Old File and outputs to a New File. Many of the field names are the same, although with different definitions. I'm reading into a DS and outputting through a DS. For example:

FOldFile IF E K Disk Rename( FileF: OldFileF )
F ExtFile( ConvertFrom ) UsrOpn
FNewFile O E Disk Rename( FileF: NewFileF )
F ExtFile( ConvertTo ) UsrOpn

D ds_New DS LikeRec( NewFileF: *output )
D ds_Old DS LikeRec( OldFileF: *input )

Read CvtCdrMstP ds_Old;
Write CdrMstF ds_New;


That works fine. It creates =I specs for OldFile, but no =O specs for NewFile, so there is no field conflict.

But once I introduce a procedure into the program, it creates the =O specs for NewFile, which then causes a conflict because some fields share names between the files, but do not share the same definitions.

Is there a reason for this? All I know to do is to change the procedure to be a subroutine (shudder) and continue on my way.

I was going to create a quick tiny version of this program to test with, but of course my WDSCi crapped out (well, hung up for about 3-5 minutes, so I had to force close it, resulting in some JVM error, now I'm going to reboot to get my memory back and I'm waiting for 15 Windows updates to apply...)

I'm on v5r4.

Thanks,
Kurt