Fortran User's Guide

-xpp={fpp|cpp}

Select source file preprocessor.

    SPARC: 77/90 x86:77

The default is -xpp=fpp.

The compilers use fpp(1) to preprocess .F or .F90 source files. This preprocessor is appropriate for Fortran. Previous versions used the standard C preprocessor cpp. To select cpp, specify -xpp=cpp.