cproto: cproto (generate function prototypes for C code) cproto: cproto: Cproto is a program that generates function prototypes and cproto: variable declarations from C source code. It can also convert cproto: function definitions between the old style and the ANSI C style. cproto: This conversion overwrites the original files, so make a backup copy cproto: of your files in case something goes wrong. cproto: cproto: cproto: cproto: