Yes, I think that may be it. flex used to try to support both the K&R and ANSI style of argument declaration.
It really serves no purpose now. Why not remove it? Then I can forget what I must do to shut up gcc. Cheers, j. On 14 August 2010 15:50, Hans Aberg <haber...@telia.com> wrote: > On 14 Aug 2010, at 10:56, John P. Hartmann wrote: > >> What is the purpose of this declaration in the generated C file: >> >> extern int yylex (void); >> >> I can see that I can define a macro to turn it off, but it seems to >> serve no purpose as the function is defined anyhow about fifteen lines >> below. I suppose a purist might even object to "extern". > > It might be a remnant from the past(?), without proper header files. Then > two style was to include the lexer .c file, or not do it, and the latter > case the declaration of yylex() would be needed. > > _______________________________________________ help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison
