Convert C source code into Delphi/Pascal source code. The program can help you to port existing applications to another new program language. It will change the C syntax into the Pascal syntax. The program has a batch conversion function to process multiple files and can progress include files. After the conversion you will still have to do some changes before you can compile the program under Delphi but the time consuming part has been done. 

https://www.cadkas.com/ec2delphi.php