Additional language-specific statements may be necessary so that compilers can provide the proper assembler interface. Other programming notations, such as variable declarations, are also language-dependent.

SYS1.CSSLIB contains stubs for all of MVS's callable services including RRS. Other program products like DB2® and IMS™ also provide libraries that contain stubs for their versions of SRRBACK and SRRCMIT.

Because other program products like DB2 and IMS provide their own stubs for SRRBACK or SRRCMIT, you must make sure your program uses the correct stub. You need to take particular care when recompiling and linkediting any application that uses these services. When you linkedit, make sure that the data sets in the syslib concatenation are in the right order. For example, if you want a DB2 application to use the RRS callable service SRRBACK or SRRCMIT, you must ensure that SYS1.CSSLIB precedes the data sets with the stubs that DB2 provides for SRRBACK or SRRCMIT.

If you inadvertently cause your program to use SRRCMIT for RRS when it expects SRRCMIT for another program product like IMS, the application does not run correctly, and your program receives an error return code from the call to SRRCMIT.

For examples of the JCL link edit statements for high-level languages, see Window services coding examples or Reference pattern services coding examples.