nginx 0.8.23 *) Security: now SSL/TLS renegotiation is disabled. Thanks to Maxim Dounin. *) Bugfix: listen unix domain socket did not inherit while online upgrade. *) Bugfix: the "unix:" parameter of the "set_real_ip_from" directive did not without yet another directive with any IP address. *) Bugfix: segmentation fault and infinite looping in resolver. *) Bugfix: in resolver. Thanks to Artem Bokhan.

--- a/src/os/unix/ngx_files.h
+++ b/src/os/unix/ngx_files.h
@@ -313,6 +313,8 @@ size_t ngx_fs_bsize(u_char *name);
 ssize_t ngx_file_aio_read(ngx_file_t *file, u_char *buf, size_t size,
     off_t offset, ngx_pool_t *pool);
 
+extern ngx_uint_t  ngx_file_aio;
+
 #endif