Oracle Rdb preprocessors check and process Oracle Rdb statements in
    your program, converting the Oracle Rdb statements to host language
    calls to the database. RDBPRE, the preprocessor for BASIC, COBOL,
    and FORTRAN, automatically invokes the necessary host language
    compiler for your program. You must invoke the host language
    compiler after you preprocess a C or Pascal program with the RDML
    preprocessor.