Configure: GNU Hurd properly recognized. With this change it's no longer needed to pass -D_GNU_SOURCE manually, and -D_FILE_OFFSET_BITS=64 is set to use 64-bit off_t. Note that nginx currently fails to work properly with master process enabled on GNU Hurd, as fcntl(F_SETOWN) returns EOPNOTSUPP for sockets as of GNU Hurd 0.6. Additionally, our strerror() preloading doesn't work well with GNU Hurd, as it uses large numbers for most errors.

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


cat << END >> $NGX_AUTO_HEADERS_H

#ifndef $have
#define $have  1
#endif

END