Chapter 7. Compiler Job Procedures And Options; Inter-Program Communications And Multiple-Compilations; A Note On Compiler Options - IBM 5280 Programmer's Manual

Chapter 7. Compiler Job Procedures and Options
This chapter provides the following information:
• A description of the job statements and the data sets required on the host
system for compilation. Separate sections are included for each host
compiler.
• How to compile more than one COBOL source module in the same job,
described in the section "Multiple Compilations - The *PROCESS
Statement".
• A description of the compiler options you can select for each compilation
in the section "Host Compiler Options".
Inter-Program Communications and Multiple-Compilations
The inter-program communications facility provides a facility by which one
program can communicate with one or more other programs using CALL
statements. It is described in detail in the 5280 COBOL Language Reference
Manual.
ONote: IBM 5280 COBOL requires that you compile all called and calling
programs using inter-program communications in the same job step using the
*PROCESS statement.
A linkage editor is not used for IBM 5280 COBOL. The host compiler
produces object modules ready for execution on the 5280. A linkage editing
step between compilation and execution is neither necessary nor possible;
therefore, compilation of all called and calling modules in the same job step is
required.
A Note on Compiler Options
The COBOL compiler provides a number of options that control compilation.
For example, the options determine the content of your output listing, the
types of messages that will be issued, how your statements are numbered in
the output listing, etc. You can accept the options provided by default with
the compiler. Or you can change the options to suit your needs when you
compile a program.
If you are compiling a program for the first time, you may want to review the
default options provided by IBM and the other available options. The options
are described in the last section of this chapter.
You may want to change the IBM-supplied options. You can do this as
follows:
• For OSjVS, in the PARM field of the EXEC statement or in the
*PROCESS statement.
• For DOSjVSE, in the *PROCESS statement.
Chapter 7. Compiler Job Procedures and Options 7- I