Partial C to Fortran translator by
David Frank Cocoa Beach, Florida retired RCA Missile Test Project radar programmer (28 yrs).. at Cape Canaveral/Patrick AFB Florida, and "downrange"..
See the file README.C2F for instructions.
Note that RUNQQ in c2f.f90 is a Digital Visual Fortran extension that could be replaced by EXECUTE_COMMAND_LINE in modern Fortran. The gfortran mailing list discussed in 2017 https://gcc.gnu.org/legacy-ml/fortran/2017-12/msg00033.html how to make the program compilable with gfortran.