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Using and Porting GNU Fortran

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12.1.1 C Interfacing Tools

Even if you don't actually use it as a compiler, f2c from ftp://ftp.netlib.org/f2c/src, can be a useful tool when you're interfacing (linking) Fortran and C. See section Generating Skeletons and Prototypes with f2c.

To use f2c for this purpose you only need retrieve and build the `src' directory from the distribution, consult the `README' instructions there for machine-specifics, and install the f2c program on your path.

Something else that might be useful is `cfortran.h' from ftp://zebra.desy.de/cfortran. This is a fairly general tool which can be used to generate interfaces for calling in both directions between Fortran and C. It can be used in f2c mode with g77---consult its documentation for details.

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