*) remove optimize_host_names
*) deprecate optimize_server_names: it is not needed since
   server_name_in_redirect introduction

src/http/ngx_http.c

diff --git a/src/http/ngx_http.c b/src/http/ngx_http.c
index 4e5500f..a1c4c98 100644
--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -1314,9 +1314,8 @@
                  sizeof(ngx_http_conf_in_addr_t), ngx_http_cmp_conf_in_addrs);
 
         /*
-         * check whether all name-based servers have the same configuraiton
-         *     as the default server,
-         * or some servers disable optimizing the server names
+         * check whether all name-based servers have
+         * the same configuraiton as the default server
          */
 
         in_addr = in_port[p].addrs.elts;
@@ -1325,18 +1324,15 @@
             name = in_addr[a].names.elts;
             for (s = 0; s < in_addr[a].names.nelts; s++) {
 
-                if (in_addr[a].core_srv_conf != name[s].core_srv_conf
-                    || name[s].core_srv_conf->optimize_server_names == 0)
-                {
+                if (in_addr[a].core_srv_conf != name[s].core_srv_conf) {
                     goto virtual_names;
                 }
             }
 
             /*
              * if all name-based servers have the same configuration
-             *         as the default server,
-             *     and no servers disable optimizing the server names
-             * then we do not need to check them at run-time at all
+             * as the default server, then we do not need to check
+             * them at run-time at all
              */
 
             in_addr[a].names.nelts = 0;

src/http/ngx_http_core_module.c

diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index e0f1e1f..76d40ea 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -79,8 +79,8 @@
 static ngx_conf_post_handler_pt  ngx_http_core_pool_size_p =
     ngx_http_core_pool_size;
 
-static ngx_conf_deprecated_t  ngx_conf_deprecated_optimize_host_names = {
-    ngx_conf_deprecated, "optimize_host_names", "optimize_server_names"
+static ngx_conf_deprecated_t  ngx_conf_deprecated_optimize_server_names = {
+    ngx_conf_deprecated, "optimize_server_names", "server_name_in_redirect"
 };
 
 static ngx_conf_deprecated_t  ngx_conf_deprecated_open_file_cache_retest = {
@@ -212,16 +212,9 @@
     { ngx_string("optimize_server_names"),
       NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
       ngx_conf_set_flag_slot,
-      NGX_HTTP_SRV_CONF_OFFSET,
-      offsetof(ngx_http_core_srv_conf_t, optimize_server_names),
-      NULL },
-
-    { ngx_string("optimize_host_names"),
-      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
-      ngx_conf_set_flag_slot,
-      NGX_HTTP_SRV_CONF_OFFSET,
-      offsetof(ngx_http_core_srv_conf_t, optimize_server_names),
-      &ngx_conf_deprecated_optimize_host_names },
+      NGX_HTTP_LOC_CONF_OFFSET,
+      offsetof(ngx_http_core_loc_conf_t, server_name_in_redirect),
+      &ngx_conf_deprecated_optimize_server_names },
 
     { ngx_string("ignore_invalid_headers"),
       NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
@@ -2419,7 +2412,6 @@
     cscf->request_pool_size = NGX_CONF_UNSET_SIZE;
     cscf->client_header_timeout = NGX_CONF_UNSET_MSEC;
     cscf->client_header_buffer_size = NGX_CONF_UNSET_SIZE;
-    cscf->optimize_server_names = NGX_CONF_UNSET;
     cscf->ignore_invalid_headers = NGX_CONF_UNSET;
     cscf->merge_slashes = NGX_CONF_UNSET;
 
@@ -2495,9 +2487,6 @@
         return NGX_CONF_ERROR;
     }
 
-    ngx_conf_merge_value(conf->optimize_server_names,
-                              prev->optimize_server_names, 1);
-
     ngx_conf_merge_value(conf->ignore_invalid_headers,
                               prev->ignore_invalid_headers, 1);
 

src/http/ngx_http_core_module.h

diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index 0bf96cb..85d96b0 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -150,7 +150,6 @@
 
     ngx_msec_t                  client_header_timeout;
 
-    ngx_flag_t                  optimize_server_names;
     ngx_flag_t                  ignore_invalid_headers;
     ngx_flag_t                  merge_slashes;