# 222. C can call Fortran procedures with prototypes generated by gfortran -fc-prototypes.
topic: {ref}`interoperability-with-c`
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C can call interoperable Fortran bind(c) procedures with prototypes, which can be generated with
gfortran -c -fc-prototypes source.f90
Linking the C and Fortran object files with the Fortran compiler enables access to the Fortran run-time library.
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