From: bowman@montana.com   
      
   On Tue, 21 Oct 2025 06:17:21 -0400, James Kuyper wrote:   
      
   > On 2025-10-20 21:51, Janis Papanagnou wrote:   
   >> On 20.10.2025 20:36, rbowman wrote:   
   > ...>> I have converted F77 code from NOAA's public domain stuff to C.   
   >>>   
   >>> https://en.wikipedia.org/wiki/F2c   
   >>>   
   >>> The utility does indeed convert Fortran 77 to C code that will compile   
   >>> but it is barely human readable and nothing you would want to   
   >>> maintain.   
   >>   
   >> If the transformation is done correctly there's no reason to inspect   
   >> the details of the generated "C" code, or is it?   
   >   
   > I've used a system, I don't remember which one, where I found out that   
   > the default Fortran "compiler" was simply a script that ran f2c followed   
   > by compiling the resulting C code.   
      
   It was a Bell labs creation and their f77 'compiler' sort of created an IL   
   that was passed to the C compiler. Like making sausage it works great if   
   you don't look at the process. If you want readable C code you can modify,   
   not so great.   
      
   I haven't had a need to did into it but on Linux f77 gets passed to   
   gfortran and I think it all ultimately winds up in C++.   
      
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