autoconf version 2.72

[Jean-Marc Lasgouttes]

Le 05/02/2024 à 21:03, sovhist a écrit :
>> Please try again. I removed the test. Tell us if something seems wrong
>> with the new autoconf.
> 
> Lyx compiles fine now. I see no problems with new autoconf.
> Thank you!

Good. Riki, can I backport 510b2cfd to stable? We do not want to shoot 
ourselves in the foot by making a perfectly working build fail just 
because there is a new autoconf version.