Node: Fortran Preprocessor, Next: Bit Operations on Floating-point Data, Previous: Suppressing Space Padding, Up: Missing Features
g77 should offer a preprocessor designed specifically
for Fortran to replace cpp -traditional.
There are several out there worth evaluating, at least.
Such a preprocessor would recognize Hollerith constants,
properly parse comments and character constants, and so on.
It might also recognize, process, and thus preprocess
files included via the INCLUDE directive.