Perl: handling of allocation errors. Previously, allocation errors in nginx.xs were more or less ignored, potentially resulting in incorrect code execution in specific low-memory conditions. This is changed to use ctx->error bit and croak(), similarly to how output errors are now handled. Note that this is mostly a cosmetic change, as Perl itself exits on memory allocation errors, and hence nginx with Perl is hardly usable in low-memory conditions.

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


cat << END >> $NGX_AUTO_HEADERS_H

#ifndef $have
#define $have  1
#endif

END