Patch fixing www/cherokee build

[Raphael Kubo da Costa]

charles rapenne <charles at bsd.zplay.eu> writes:

> The port www/cherokee is marked broken : does not configure
>
> I found a fix to make it build correctly, I don't know the difference
> between HAS_CONFIGURE and GNU_CONFIGURE, but it does fix the problem.

Thanks for pointing that out. I chose to fix it differently in r339271:
upstream had a clearly wrong check for sizeof(sig_atomic_t) that was not
being used anywhere that was causing this problem. I've removed it in a
patch and have also sent a patch upstream in
https://github.com/cherokee/webserver/pull/1100