Re: RFC: build: be robust to missing flex

[Stefano Lattarini]

On 03/27/2012 03:43 PM, Akim Demaille wrote:
> 
> Well, I would live happily with grep -E 'f?lex 2\.5\.35' actually,
> I don't care much about older flexes.  Newer ones can be treated
> when needed, and that's not in a foreseeable future.
> 
> WDYT?
> 
What about going for a proper feature check in true autotools style?
I.e., try $LEX on an input that is known to work with modern flexes
and to trip non-flex lexers.

Regards,
  Stefano