how to force preprocessing of *.f90 files (i.e., not *.F90)

[Tobias Schlüter]

Dimitri Komatitsch <dimitri.komatitsch@univ-pau.fr> wrote on Mon, 11 Dec 2006:
> Is there a way of forcing preprocessing in gfortran
> when the files are named *.f90 rather than *.F90 ?
> I maintain a package in which all files are called *.f90 but contain
> #define directives. With other compilers (for instance Intel ifort)
> we force preprocessing by adding the "-cpp " option, is there something
> equivalent in gfortran? if not, it could be a good idea to add it.
>
> (I checked the manual and did not find such an option, I hope I did not
> miss it...)

There is, it's documented under the "suggestive" title 'options  
controlling the kind of output': -x f95-cpp-input

Cheers,
- Tobi

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