Re: A problem related to php 5.4.10 and possibly others

[Akim Demaille]

Le 15 janv. 2013 à 00:19, Dennis Clarke <address@hidden> a écrit :

> Dear bison folks :

Hi!

> This is not really a bug but rather a question. I recently saw that PHP had 
> been updated to 5.4.10 and I decided to try building it. I was quite 
> surprised to see in the configure output this warning about bison : 
> 
> checking for bison... bison -y
> checking for bison version... invalid
> configure: WARNING: bison versions supported for regeneration of the Zend/PHP 
> parsers: 1.28 1.35 1.75 1.875 2.0 2.1 2.2 2.3 2.4 2.4.1 2.4.2 2.4.3 2.5 2.5.1 
> 2.6 2.6.1 2.6.2 (found: 2.6.5).
> 
> 
>    This seems odd to me as bison 2.6.5 builds and tests perfectly on my 
> Solaris 10 server and so therefore I wonder what these PHP folks are on 
> about?  I will look for some sort of reasonable dev list for the php folks as 
> it would be a good idea to get some input from them. Any reply from the bison 
> team would be appreciated also. 

I have no idea why this is checked/displayed.  Maintaining backward
compatibility is certainly a nice feature, but supporting
1.28 for instance seems completely pointless.  Actually, it
also means that they use no recent feature, which is sad.

On the other end of the spectrum, I have no idea why they
want to check the version this way.  I am not aware of bugs
in 2.7 for instance, yet I know issues 2.7 solves over 2.6.5,
which itself is superior to 2.6.2.

Really, I'd be happy to know more about this.

        Thanks!