I have a mixed-language project I am trying to compile using GFortran 4.3 on a PC running Fedora 10. I have some preprocessor directives in both .f and .f90 files. Is there a blanket option I can use to force the compiler to use the preprocessor for these files? There are hundreds of files and I do not want to have to rename them to either .F or .F90. The make files are setup to use a common set of compiler options so I cannot easily use the "-x f77-cpp-input" and "-x f95-cpp-input" options piecemeal. Thanks, Chris Chris Randolph Associate Booz | Allen | Hamilton Phone: (937) 781-2451 Randolph_Christian@xxxxxxx