Regular expressions in server_name: pattern length

[Michael Shadle]

2010/2/4 Maxim Dounin <mdounin at mdounin.ru>:

> Either upgrade pcre library to 7.0 at least, or use (?P<...>)
> syntax as available from pcre version 4.0.

I'm under the hassle of Redhat :/

I did try this instead

server_name ~^(.+)\.domain\.com$;
rewrite ^ http://foo.com/index.php?title=$1 permanent;

$1 isn't being populated. Of course, I guess $1 would be usually a
regex match for the rewrite line. How can I pass the match from
server_name down to rewrite?