Re: [PATCH] Revert 'Fix logic error in _AC_PROG_LEX_YYTEXT_DECL (#109320)'

[Ross Burton]

On Thu, 16 Jul 2020 at 15:19, Ross Burton <ross@burtonini.com> wrote:
> >  - Change the conftest.l used by _AC_PROG_LEX_YYTEXT_DECL so that it
> > defines yywrap itself (it already defines main).  Thus, LEXLIB will
> > only be set to -ll or -lfl if there's something in there *besides*
> > yywrap and main that the generated scanner needs.  Document this.

Tested patch sent for this part.  I was having trouble with words so
you may want to rewrite the commit message!

Ross