August Miller's tool to convert Fortran fixed source form to free source form to be compatible with ELF90. Compile the tool with
gfortran rencom.f90 all.f90
It also compiles with ifort and g95.
Note the following from ezup.pdf:
EZUP is the "intellectual property" of August Miller. A license to employ it for non-commercial use is hereby granted to any individual who wishes to do so. Usage of the program is understood to imply acceptance of the above disclaimers and any others which might reasonably apply to "freeware".
However, the fact that you may use it in a non-commercial environment does not mean that you are free to use it for any other purpose without express written permission of the author. In fact, you CANNOT legally do so.