Re: RFC: build: be robust to missing flex

[Stefano Lattarini]

On 03/27/2012 05:25 PM, Akim Demaille wrote:
> 
> Le 27 mars 2012 à 16:27, Stefano Lattarini a écrit :
>
>> I think the best fix in the long term would be to enhance AC_PROG_LEX to set
>> a variable telling whether $LEX is flex or not (similarly to what is done by
>> AC_PROG_CC etc.).  The Bison's configure could simply use this variable to
>> determine whether a good-enough flex has been found.
>>
>> Would you think it worthwhile to submit a patch to Autoconf before 2.69 gets
>> released?
> 
> Good idea, why not!  I'll try to spend some time on this
> during the week.  Thanks for the prompt.
> 
Thanks to you for volunteering to write a patch.

And since I'm prompting already: why not also enhance AC_PROG_YACC to set
a variable telling whether $YACC is actually bison? ;-)

Regards,
  Stefano