Adding pcntl support to php5

[Ryan Schmidt]

On Jan 27, 2007, at 14:13, James Berry wrote:

> On Jan 26, 2007, at 3:22 PM, Ryan Schmidt wrote:
>
>> It has been suggested to me that pcntl support should be added to  
>> the php5 port. I was asked to add a +pcntl variant for this, but  
>> I'm inclined to just add pcntl support always, without needing a  
>> variant. pcntl support does not require any additional libraries.  
>> Are there any objections to enabling pcntl always? Any reason I  
>> shouldn't do that?
>
> Given the stern warning on the php page about pcntl, and since php  
> is almost always used in a webserver environment, I'd think it  
> would be best to make this an optional variant, which must be  
> explicitly enabled (+pcntl), rather than one which must be disabled  
> as some others have suggested (+disable_pcntl).
>
> http://us3.php.net/pcntl:
>
> Process Control support in PHP implements the Unix style of process  
> creation, program execution, signal handling and process  
> termination. Process Control should not be enabled within a  
> webserver environment and unexpected results may happen if any  
> Process Control functions are used within a webserver environment.

Thanks, James; I had overlooked that warning.

Added +pcntl variant in r21538.