ASMACMS038E Filename conflict for the SYSIN FILEDEF.

Explanation
The file name specified on the ASMAHL command conflicts with the
file name on the FILEDEF for the SYSIN ddname.

System action
RC=40. Processing of the command terminates. The system remains
in the same status as before the command was entered.

Programmer response
Reissue the FILEDEF command or the ASMAHL command specifying the
same file name.