The %INCLUDE statement incorporates text from other files into the current source file during compilation. The general form of this statement is:
%INCLUDE filename[,filename]...;
where:
filename is one of the following:
The specified filename is used to locate a text file whose content is inserted into the program text in place of the %INCLUDE statement.
Your selection of one of these forms in combination with the presence or absence of the -ipath compiler option affects the search pattern used in locating files to be included. For more information, see the section %INCLUDE in the chapter Statements.
The Open PL/I Macro Preprocessor has its own %INCLUDE statement. Its use is documented in the appendix Open PL/I Macro Preprocessor.