The CICS preprocessor LINKAGE option enables you to control whether or not the preprocessor inserts the DFHEIBLK and COMMAREA into a program's Linkage Section and updates the USING clause of the PROCEDURE DIVISION header 
- LINKAGE=NO 
- Do not insert the DFHEIBLK and COMMAREA into a program's Linkage Section or update the USING clause of the PROCEDURE DIVISION header 
- LINKAGE=YES 
- Do insert the DFHEIBLK and COMMAREA into a program's Linkage Section and update the USING clause of the PROCEDURE DIVISION header. This is the default 
You can shorten LINKAGE to LINK, YES to Y and NO to N. 
For example, /CICSECM(LINKAGE=NO).