This utility will generate C type prototypes from an (old style) C source file. This tool has not been reworked to recognise ANSI style declarations yet. This utility will operate on any file which ends in the suffix ".c". It will generate a new file with the original file name plus the suffix ".pr" which contains the list of prototypes output by the utility.
(This one is almost useless. How many old-style declarations do you write or run into? I recommend the SUPERIOR prototype generator in CMaster‚Ñ¢ from Jersey Scientific.)