Ftc is a project mainly written in C++ and C, it's free.
Fortran -> C translator using ROSE framework supporting a subset of Fortran.
envvar ROSE_HOME should be set to point to rose installation to access include/lib directories envvar FTC should be set up to point to the location of the ftc directory containing the empty 'dummy.f90' file.
'make' / 'make mode=debug' compiles ftc and the io lib in debug mode. 'make mode=release' compiles ftc in release mode.