Re: Removing GCC warnings from flex- and bison- generated C

On 12-Jan-2004, John Millaway <johnmillaway@yahoo.com> wrote:
> > >ncap_lex.c:2865: warning: no previous prototype for `yyget_leng'
> > >ncap_lex.c:2874: warning: no previous prototype for `yyget_text'
> > >ncap_lex.c:2883: warning: no previous prototype for `yyset_lineno'
> > >ncap_lex.c:2895: warning: no previous prototype for `yyset_in'
> > >ncap_lex.c:2900: warning: no previous prototype for `yyset_out'
> > >ncap_lex.c:2905: warning: no previous prototype for `yyget_debug'
> > >ncap_lex.c:2910: warning: no previous prototype for `yyset_debug'
> > >ncap_lex.c:2916: warning: no previous prototype for `yylex_destroy'
> >
> > Those warnings can all be eliminated by declaring prototypes
> > for the corresponding functions.
>
> Or, preferably, use the option --header=FILE (%header=FILE) to generate a C
> header file which contains the prototypes. -John M


$ flex --header=foo.h foo.l
flex: unknown flag '-'. For usage, try
                flex --help


$ flex --version
flex version 2.5.4
--
Fergus Henderson <fjh@cs.mu.oz.au> | "I have always known that the pursuit
The University of Melbourne | of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh> | -- the last words of T. S. Garp.

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