Milter-greylist

At Tue, 8 May 2007 18:40:25 +0200,
Emmanuel Dreyfus wrote:
> 
> Mart Pirita <sysadmin@...> wrote:
> 
> > In file included from conf_yacc.y:1173:
> > conf_lex.l: In function `conf_dispose_input_file':
> > conf_lex.l:311: error: `YY_FLUSH_BUFFER' undeclared (first use in this
> > function)
> > conf_lex.l:311: error: (Each undeclared identifier is reported only once
> > conf_lex.l:311: error: for each function it appears in.)
> > conf_yacc.y: At top level:
> > conf_lex.c:2130: warning: `yyunput' defined but not used
> > make: *** [conf_yacc.o] Error 1
> > 
> > Now what?
> 
> It seems there are broken versions of flex that do not define
> YY_FLUSH_BUFFER. flex-2.5.4 works. Newer flex also works, there is a gap
> of flex version(s) that do(es) not.
> 
> I wonder if we really need that YY_FLUSH_BUFFER. AIDA Shinra added it,
> but I don't really know why...

Replace YY_FLUSH_BUFFER in conf.c to conf__flush_buffer(YY_CURRENT_BUFFER).
Similarly, replace one in dump.c to dump__flush_buffer(YY_CURRENT_BUFFER).

We need it in case there is an error in conf file. Without it, we will
see the rest of the erroneous conf file prepended in reading updated
conf file.