Configure: perl Makefile rebuild after configure. The $NGX_AUTO_CONFIG_H added to perl module Makefile dependencies to make sure it's always rebuild after a configure. It is needed as we expand various variables used for Makefile generation during configure (in particular, nginx version).

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


cat << END >> $NGX_AUTO_CONFIG_H

#ifndef $have
#define $have  $value
#endif

END