Changes with nginx 0.6.6 30 Jul 2007v0.6.6

    *) Feature: the --sysconfdir=PATH option in configure.

    *) Feature: named locations.

    *) Feature: the $args variable can be set with the "set" directive.

    *) Feature: the $is_args variable.

    *) Bugfix: fair big weight upstream balancer.

    *) Bugfix: if a client has closed connection to mail proxy then nginx
       might not close connection to backend.

    *) Bugfix: if the same host without specified port was used as backend
       for HTTP and HTTPS, then nginx used only one port - 80 or 443.

    *) Bugfix: fix building on Solaris/amd64 by Sun Studio 11 and early
       versions; bug appeared in 0.6.4.

50 files changed, 544 insertions, 261 deletions

diff --git a/CHANGES b/CHANGES
index 9abd69e33..8b8c1523c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,26 @@
 
+Changes with nginx 0.6.6                                         30 Jul 2007
+
+    *) Feature: the --sysconfdir=PATH option in configure.
+
+    *) Feature: named locations.
+
+    *) Feature: the $args variable can be set with the "set" directive.
+
+    *) Feature: the $is_args variable.
+
+    *) Bugfix: fair big weight upstream balancer.
+
+    *) Bugfix: if a client has closed connection to mail proxy then nginx 
+       might not close connection to backend.
+
+    *) Bugfix: if the same host without specified port was used as backend 
+       for HTTP and HTTPS, then nginx used only one port - 80 or 443.
+
+    *) Bugfix: fix building on Solaris/amd64 by Sun Studio 11 and early 
+       versions; bug appeared in 0.6.4.
+
+
 Changes with nginx 0.6.5                                         23 Jul 2007
 
     *) Feature: $nginx_version variable.
diff --git a/CHANGES.ru b/CHANGES.ru
index 3a9b54084..94e8b21c4 100644
--- a/CHANGES.ru
+++ b/CHANGES.ru
@@ -1,4 +1,28 @@
 
+Изменения в nginx 0.6.6                                           30.07.2007
+
+    *) Добавление: параметр --sysconfdir=PATH в configure.
+
+    *) Добавление: именованные location'ы.
+
+    *) Добавление: переменную $args можно устанавливать с помощью set.
+
+    *) Добавление: переменная $is_args.
+
+    *) Исправление: равномерное распределение запросов к апстримам с 
+       большими весами.
+
+    *) Исправление: если клиент в почтовом прокси-сервере закрывал 
+       соединение, то nginx мог не закрывать соединение с бэкендом.
+
+    *) Исправление: при использовании одного хоста в качестве бэкендов для 
+       протоколов HTTP и HTTPS без явного указания портов, nginx 
+       использовал только один порт - 80 или 443.
+
+    *) Исправление: nginx не собирался на Solaris/amd64 Sun Studio 11 и 
+       более ранними версиями; ошибка появилась в 0.6.4.
+
+
 Изменения в nginx 0.6.5                                           23.07.2007
 
     *) Добавление: переменная $nginx_version.
diff --git a/auto/cc/sunc b/auto/cc/sunc
index f7eb8800d..d464c6e11 100644
--- a/auto/cc/sunc
+++ b/auto/cc/sunc
@@ -39,7 +39,7 @@ if [ "$ngx_sunc_ver" -ge 1424 ]; then
 else
     ngx_sparc32="-xarch=v8plus"
     ngx_sparc64="-xarch=v9"
-    ngx_amd64="-amd64"
+    ngx_amd64="-xarch=amd64"
 fi
 
 case "$NGX_MACHINE" in
diff --git a/auto/install b/auto/install
index 3496c5b12..e949aeccc 100644
--- a/auto/install
+++ b/auto/install
@@ -26,19 +26,22 @@ install:	$NGX_OBJS${ngx_dirsep}nginx${ngx_binext}	\
 	test ! -f '$NGX_SBIN_PATH' || mv '$NGX_SBIN_PATH' '$NGX_SBIN_PATH.old'
 	cp $NGX_OBJS/nginx '$NGX_SBIN_PATH'
 
-	test -d '`dirname "$NGX_CONF_PATH"`' \
-		|| mkdir -p '`dirname "$NGX_CONF_PATH"`'
+	test -d '$NGX_CONF_PREFIX' || mkdir -p '$NGX_CONF_PREFIX'
 
-	cp conf/koi-win '`dirname "$NGX_CONF_PATH"`'
-	cp conf/koi-utf '`dirname "$NGX_CONF_PATH"`'
-	cp conf/win-utf '`dirname "$NGX_CONF_PATH"`'
+	cp conf/koi-win '$NGX_CONF_PREFIX'
+	cp conf/koi-utf '$NGX_CONF_PREFIX'
+	cp conf/win-utf '$NGX_CONF_PREFIX'
 
-	test -f '`dirname "$NGX_CONF_PATH"`/mime.types' || \
-		cp conf/mime.types '`dirname "$NGX_CONF_PATH"`/mime.types'
-	cp conf/mime.types '`dirname "$NGX_CONF_PATH"`/mime.types.default'
+	test -f '$NGX_CONF_PREFIX/mime.types' \
+		|| cp conf/mime.types '$NGX_CONF_PREFIX'
+	cp conf/mime.types '$NGX_CONF_PATH/mime.types.default'
 
-	test -f '$NGX_CONF_PATH' || cp conf/nginx.conf '$NGX_CONF_PATH'
-	cp conf/nginx.conf '`dirname "$NGX_CONF_PATH"`/nginx.conf.default'
+	test -f '$NGX_CONF_PREFIX/fastcgi_params' \
+		|| cp conf/fastcgi_params '$NGX_CONF_PREFIX'
+	cp conf/fastcgi_params '$NGX_CONF_PATH/fastcgi_params.default'
+
+	test -f '$NGX_CONF_PATH' || cp conf/nginx.conf '$NGX_CONF_PREFIX'
+	cp conf/nginx.conf '$NGX_CONF_PREFIX/nginx.conf.default'
 
 	test -d '`dirname "$NGX_PID_PATH"`' \
 		|| mkdir -p '`dirname "$NGX_PID_PATH"`'
diff --git a/auto/options b/auto/options
index 7fb7131a0..0640f8c84 100644
--- a/auto/options
+++ b/auto/options
@@ -6,6 +6,7 @@ help=no
 
 NGX_PREFIX=
 NGX_SBIN_PATH=
+NGX_CONF_PREFIX=
 NGX_CONF_PATH=
 NGX_ERROR_LOG_PATH=
 NGX_PID_PATH=
@@ -123,6 +124,7 @@ do
 
         --prefix=*)                      NGX_PREFIX="$value"        ;;
         --sbin-path=*)                   NGX_SBIN_PATH="$value"     ;;
+        --sysconfdir=*)                  NGX_CONF_PREFIX="$value"   ;;
         --conf-path=*)                   NGX_CONF_PATH="$value"     ;;
         --error-log-path=*)              NGX_ERROR_LOG_PATH="$value";;
         --pid-path=*)                    NGX_PID_PATH="$value"      ;;
@@ -240,6 +242,7 @@ cat << END
 
   --prefix=PATH                      set the installation prefix
   --sbin-path=PATH                   set path to the nginx binary file
+  --sysconfdir=PATH                  set the configuration prefix
   --conf-path=PATH                   set path to the nginx.conf file
   --error-log-path=PATH              set path to the error log
   --pid-path=PATH                    set path to nginx.pid file
@@ -360,6 +363,7 @@ fi
 
 
 NGX_PREFIX=${NGX_PREFIX:-/usr/local/nginx}
+NGX_CONF_PREFIX=${NGX_CONF_PREFIX:-$NGX_PREFIX}
 
 
 case ".$NGX_SBIN_PATH" in
@@ -381,11 +385,11 @@ case ".$NGX_CONF_PATH" in
     ;;
 
     .)
-        NGX_CONF_PATH=$NGX_PREFIX/conf/nginx.conf
+        NGX_CONF_PATH=$NGX_CONF_PREFIX/conf/nginx.conf
     ;;
 
     *)
-        NGX_CONF_PATH=$NGX_PREFIX/$NGX_CONF_PATH
+        NGX_CONF_PATH=$NGX_CONF_PREFIX/$NGX_CONF_PATH
     ;;
 esac
 
diff --git a/auto/summary b/auto/summary
index accb7b9ac..c220c7123 100644
--- a/auto/summary
+++ b/auto/summary
@@ -148,6 +148,7 @@ fi
 cat << END
   nginx path prefix: "$NGX_PREFIX"
   nginx binary file: "$NGX_SBIN_PATH"
+  nginx configuration prefix: "$NGX_CONF_PREFIX"
   nginx configuration file: "$NGX_CONF_PATH"
   nginx pid file: "$NGX_PID_PATH"
 END
diff --git a/auto/types/uintptr_t b/auto/types/uintptr_t
index e7d8d5ca0..55024b820 100644
--- a/auto/types/uintptr_t
+++ b/auto/types/uintptr_t
@@ -36,5 +36,6 @@ if [ $found = no ]; then
     found="uint`expr 8 \* $ngx_ptr_size`_t"
     echo ", $found used"
 
-    echo "typedef $found  uintptr_t;"   >> $NGX_AUTO_CONFIG_H
+    echo "typedef $found  uintptr_t;"                   >> $NGX_AUTO_CONFIG_H
+    echo "typedef $found  intptr_t;" | sed -e 's/u//g'  >> $NGX_AUTO_CONFIG_H
 fi
diff --git a/configure b/configure
index bcb8aaa3a..00a7f4872 100755
--- a/configure
+++ b/configure
@@ -67,6 +67,7 @@ fi
 
 have=NGX_PREFIX value="\"$NGX_PREFIX/\"" . auto/define
 have=NGX_SBIN_PATH value="\"$NGX_SBIN_PATH\"" . auto/define
+have=NGX_CONF_PREFIX value="\"$NGX_CONF_PREFIX/\"" . auto/define
 have=NGX_CONF_PATH value="\"$NGX_CONF_PATH\"" . auto/define
 have=NGX_PID_PATH value="\"$NGX_PID_PATH\"" . auto/define
 have=NGX_LOCK_PATH value="\"$NGX_LOCK_PATH\"" . auto/define
diff --git a/src/core/nginx.c b/src/core/nginx.c
index b758775e3..27cb80f85 100644
--- a/src/core/nginx.c
+++ b/src/core/nginx.c
@@ -656,7 +656,7 @@ ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv)
         cycle->conf_file.data = (u_char *) NGX_CONF_PATH;
     }
 
-    if (ngx_conf_full_name(cycle, &cycle->conf_file) == NGX_ERROR) {
+    if (ngx_conf_full_name(cycle, &cycle->conf_file, 1) == NGX_ERROR) {
         return NGX_ERROR;
     }
 
@@ -826,7 +826,7 @@ ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
         ccf->pid.data = (u_char *) NGX_PID_PATH;
     }
 
-    if (ngx_conf_full_name(cycle, &ccf->pid) == NGX_ERROR) {
+    if (ngx_conf_full_name(cycle, &ccf->pid, 0) == NGX_ERROR) {
         return NGX_CONF_ERROR;
     }
 
@@ -846,7 +846,7 @@ ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
         ccf->lock_file.data = (u_char *) NGX_LOCK_PATH;
     }
 
-    if (ngx_conf_full_name(cycle, &ccf->lock_file) == NGX_ERROR) {
+    if (ngx_conf_full_name(cycle, &ccf->lock_file, 0) == NGX_ERROR) {
         return NGX_CONF_ERROR;
     }
 
diff --git a/src/core/nginx.h b/src/core/nginx.h
index 85ae5e212..dc09261ee 100644
--- a/src/core/nginx.h
+++ b/src/core/nginx.h
@@ -8,7 +8,7 @@
 #define _NGINX_H_INCLUDED_
 
 
-#define NGINX_VERSION      "0.6.5"
+#define NGINX_VERSION      "0.6.6"
 #define NGINX_VER          "nginx/" NGINX_VERSION
 
 #define NGINX_VAR          "NGINX"
diff --git a/src/core/ngx_conf_file.c b/src/core/ngx_conf_file.c
index a68192fe0..514d55bad 100644
--- a/src/core/ngx_conf_file.c
+++ b/src/core/ngx_conf_file.c
@@ -641,7 +641,7 @@ ngx_conf_include(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data);
 
-    if (ngx_conf_full_name(cf->cycle, &file) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR) {
         return NGX_CONF_ERROR;
     }
 
@@ -681,9 +681,10 @@ ngx_conf_include(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
 
 ngx_int_t
-ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name)
+ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name, ngx_uint_t conf_prefix)
 {
-    u_char     *p;
+    size_t      len;
+    u_char     *p, *prefix;
     ngx_str_t   old;
 
     if (name->data[0] == '/') {
@@ -704,14 +705,22 @@ ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name)
 
     old = *name;
 
-    name->len = cycle->root.len + old.len;
+    if (conf_prefix) {
+        len = sizeof(NGX_CONF_PREFIX) - 1;
+        prefix = (u_char *) NGX_CONF_PREFIX;
 
+    } else {
+        len = cycle->root.len;
+        prefix = cycle->root.data;
+    }
+
+    name->len = len + old.len;
     name->data = ngx_palloc(cycle->pool, name->len + 1);
     if (name->data == NULL) {
         return  NGX_ERROR;
     }
 
-    p = ngx_cpymem(name->data, cycle->root.data, cycle->root.len),
+    p = ngx_cpymem(name->data, prefix, len);
     ngx_cpystrn(p, old.data, old.len + 1);
 
     return NGX_OK;
@@ -734,7 +743,7 @@ ngx_conf_open_file(ngx_cycle_t *cycle, ngx_str_t *name)
     if (name) {
         full = *name;
 
-        if (ngx_conf_full_name(cycle, &full) == NGX_ERROR) {
+        if (ngx_conf_full_name(cycle, &full, 0) == NGX_ERROR) {
             return NULL;
         }
 
diff --git a/src/core/ngx_conf_file.h b/src/core/ngx_conf_file.h
index 7d5112919..2e91d0b8c 100644
--- a/src/core/ngx_conf_file.h
+++ b/src/core/ngx_conf_file.h
@@ -320,7 +320,8 @@ char *ngx_conf_check_num_bounds(ngx_conf_t *cf, void *post, void *data);
 char *ngx_conf_parse(ngx_conf_t *cf, ngx_str_t *filename);
 
 
-ngx_int_t ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name);
+ngx_int_t ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name,
+    ngx_uint_t conf_prefix);
 ngx_open_file_t *ngx_conf_open_file(ngx_cycle_t *cycle, ngx_str_t *name);
 void ngx_cdecl ngx_conf_log_error(ngx_uint_t level, ngx_conf_t *cf,
     ngx_err_t err, char *fmt, ...);
diff --git a/src/core/ngx_config.h b/src/core/ngx_config.h
index ef31be538..a6a9f5d27 100644
--- a/src/core/ngx_config.h
+++ b/src/core/ngx_config.h
@@ -70,31 +70,20 @@
 
 #endif
 
+typedef intptr_t        ngx_int_t;
+typedef uintptr_t       ngx_uint_t;
+typedef intptr_t        ngx_flag_t;
 
 
-/* TODO: platform specific: array[NGX_INVALID_ARRAY_INDEX] must cause SIGSEGV */
-#define NGX_INVALID_ARRAY_INDEX 0x80000000
-
-
-#if 1
-/* STUB: autoconf */
-typedef int             ngx_int_t;
-typedef u_int           ngx_uint_t;
-typedef int             ngx_flag_t;
-#define NGX_INT_T_LEN   sizeof("-2147483648") - 1
+#define NGX_INT32_LEN   sizeof("-2147483648") - 1
+#define NGX_INT64_LEN   sizeof("-9223372036854775808") - 1
 
+#if (NGX_PTR_SIZE == 4)
+#define NGX_INT_T_LEN   NGX_INT32_LEN
 #else
-
-typedef long            ngx_int_t;
-typedef u_long          ngx_uint_t;
-typedef long            ngx_flag_t;
-#define NGX_INT_T_LEN   sizeof("-9223372036854775808") - 1
-
+#define NGX_INT_T_LEN   NGX_INT64_LEN
 #endif
 
-#define NGX_INT32_LEN   sizeof("-2147483648") - 1
-#define NGX_INT64_LEN   sizeof("-9223372036854775808") - 1
-
 
 #ifndef NGX_ALIGNMENT
 #define NGX_ALIGNMENT   sizeof(unsigned long)    /* platform word */
@@ -108,6 +97,10 @@ typedef long            ngx_flag_t;
 #define ngx_abort       abort
 
 
+/* TODO: platform specific: array[NGX_INVALID_ARRAY_INDEX] must cause SIGSEGV */
+#define NGX_INVALID_ARRAY_INDEX 0x80000000
+
+
 /* TODO: auto_conf: ngx_inline   inline __inline __inline__ */
 #ifndef ngx_inline
 #define ngx_inline      inline
diff --git a/src/core/ngx_file.c b/src/core/ngx_file.c
index fcb8ff080..f85578623 100644
--- a/src/core/ngx_file.c
+++ b/src/core/ngx_file.c
@@ -260,7 +260,7 @@ ngx_conf_set_path_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         path->name.len--;
     }
 
-    if (ngx_conf_full_name(cf->cycle, &path->name) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, &path->name, 0) == NGX_ERROR) {
         return NULL;
     }
 
diff --git a/src/core/ngx_file.h b/src/core/ngx_file.h
index 0f819a1b8..063b0fb83 100644
--- a/src/core/ngx_file.h
+++ b/src/core/ngx_file.h
@@ -109,7 +109,7 @@ char *ngx_conf_set_access_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
             curr->name.len = sizeof(path) - 1;                                \
             curr->name.data = (u_char *) path;                                \
                                                                               \
-            if (ngx_conf_full_name(cf->cycle, &curr->name) == NGX_ERROR) {    \
+            if (ngx_conf_full_name(cf->cycle, &curr->name, 0) == NGX_ERROR) { \
                 return NGX_CONF_ERROR;                                        \
             }                                                                 \
                                                                               \
diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index 349ae7681..1059acf43 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -333,7 +333,7 @@ ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     } else {
         cf->cycle->new_log->file->name = value[1];
 
-        if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name)
+        if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name, 0)
             == NGX_ERROR)
         {
             return NGX_CONF_ERROR;
diff --git a/src/event/modules/ngx_aio_module.c b/src/event/modules/ngx_aio_module.c
index 1022643e8..4a78c3991 100644
--- a/src/event/modules/ngx_aio_module.c
+++ b/src/event/modules/ngx_aio_module.c
@@ -16,9 +16,11 @@
 
 static ngx_int_t ngx_aio_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_aio_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_aio_del_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_aio_del_connection(ngx_connection_t *c, u_int flags);
+static ngx_int_t ngx_aio_add_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_aio_del_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_aio_del_connection(ngx_connection_t *c, ngx_uint_t flags);
 static ngx_int_t ngx_aio_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
     ngx_uint_t flags);
 
@@ -100,21 +102,21 @@ ngx_aio_done(ngx_cycle_t *cycle)
 /* the event adding and deleting are needed for the listening sockets */
 
 static ngx_int_t
-ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags)
+ngx_aio_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     return ngx_kqueue_module_ctx.actions.add(ev, event, flags);
 }
 
 
 static ngx_int_t
-ngx_aio_del_event(ngx_event_t *ev, int event, u_int flags)
+ngx_aio_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     return ngx_kqueue_module_ctx.actions.del(ev, event, flags);
 }
 
 
 static ngx_int_t
-ngx_aio_del_connection(ngx_connection_t *c, u_int flags)
+ngx_aio_del_connection(ngx_connection_t *c, ngx_uint_t flags)
 {
     int  rc;
 
diff --git a/src/event/modules/ngx_devpoll_module.c b/src/event/modules/ngx_devpoll_module.c
index d7ea99b0c..be523add9 100644
--- a/src/event/modules/ngx_devpoll_module.c
+++ b/src/event/modules/ngx_devpoll_module.c
@@ -13,8 +13,8 @@
 
 /* Solaris declarations */
 
-#define POLLREMOVE   0x0800
-#define DP_POLL      0xD001
+#define POLLREMOVE  0x0800
+#define DP_POLL     0xD001
 
 struct dvpoll {
     struct pollfd  *dp_fds;
@@ -26,16 +26,19 @@ struct dvpoll {
 
 
 typedef struct {
-    u_int  changes;
-    u_int  events;
+    ngx_uint_t      changes;
+    ngx_uint_t      events;
 } ngx_devpoll_conf_t;
 
 
 static ngx_int_t ngx_devpoll_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_devpoll_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags);
+static ngx_int_t ngx_devpoll_add_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_devpoll_del_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_devpoll_set_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
 static ngx_int_t ngx_devpoll_process_events(ngx_cycle_t *cycle,
     ngx_msec_t timer, ngx_uint_t flags);
 
@@ -44,7 +47,7 @@ static char *ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf);
 
 static int              dp = -1;
 static struct pollfd   *change_list, *event_list;
-static u_int            nchanges, max_changes, nevents;
+static ngx_uint_t       nchanges, max_changes, nevents;
 
 static ngx_event_t    **change_index;
 
@@ -208,7 +211,7 @@ ngx_devpoll_done(ngx_cycle_t *cycle)
 
 
 static ngx_int_t
-ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
+ngx_devpoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
 #if (NGX_DEBUG)
     ngx_connection_t *c;
@@ -221,7 +224,7 @@ ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
 #if (NGX_DEBUG)
     c = ev->data;
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "devpoll add event: fd:%d ev:%04Xd", c->fd, event);
+                   "devpoll add event: fd:%d ev:%04Xi", c->fd, event);
 #endif
 
     ev->active = 1;
@@ -231,7 +234,7 @@ ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags)
+ngx_devpoll_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_event_t       *e;
     ngx_connection_t  *c;
@@ -243,7 +246,7 @@ ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags)
 #endif
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "devpoll del event: fd:%d ev:%04Xd", c->fd, event);
+                   "devpoll del event: fd:%d ev:%04Xi", c->fd, event);
 
     if (ngx_devpoll_set_event(ev, POLLREMOVE, flags) == NGX_ERROR) {
         return NGX_ERROR;
@@ -275,7 +278,7 @@ ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags)
+ngx_devpoll_set_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     size_t             n;
     ngx_connection_t  *c;
@@ -283,7 +286,7 @@ ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags)
     c = ev->data;
 
     ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "devpoll fd:%d ev:%04Xd fl:%04Xd", c->fd, event, flags);
+                   "devpoll fd:%d ev:%04Xi fl:%04Xi", c->fd, event, flags);
 
     if (nchanges >= max_changes) {
         ngx_log_error(NGX_LOG_WARN, ev->log, 0,
@@ -300,7 +303,7 @@ ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags)
     }
 
     change_list[nchanges].fd = c->fd;
-    change_list[nchanges].events = event;
+    change_list[nchanges].events = (short) event;
     change_list[nchanges].revents = 0;
 
     change_index[nchanges] = ev;
@@ -353,7 +356,7 @@ ngx_devpoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
     }
 
     dvp.dp_fds = event_list;
-    dvp.dp_nfds = nevents;
+    dvp.dp_nfds = (int) nevents;
     dvp.dp_timeout = timer;
     events = ioctl(dp, DP_POLL, &dvp);
 
diff --git a/src/event/modules/ngx_epoll_module.c b/src/event/modules/ngx_epoll_module.c
index 184346abf..432164bc4 100644
--- a/src/event/modules/ngx_epoll_module.c
+++ b/src/event/modules/ngx_epoll_module.c
@@ -66,16 +66,19 @@ int epoll_wait(int epfd, struct epoll_event *events, int nevents, int timeout)
 
 
 typedef struct {
-    u_int  events;
+    ngx_uint_t  events;
 } ngx_epoll_conf_t;
 
 
 static ngx_int_t ngx_epoll_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_epoll_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_epoll_add_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_epoll_del_event(ngx_event_t *ev, int event, u_int flags);
+static ngx_int_t ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_epoll_del_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
 static ngx_int_t ngx_epoll_add_connection(ngx_connection_t *c);
-static ngx_int_t ngx_epoll_del_connection(ngx_connection_t *c, u_int flags);
+static ngx_int_t ngx_epoll_del_connection(ngx_connection_t *c,
+    ngx_uint_t flags);
 static ngx_int_t ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
     ngx_uint_t flags);
 
@@ -84,7 +87,7 @@ static char *ngx_epoll_init_conf(ngx_cycle_t *cycle, void *conf);
 
 static int                  ep = -1;
 static struct epoll_event  *event_list;
-static u_int                nevents;
+static ngx_uint_t           nevents;
 
 
 static ngx_str_t      epoll_name = ngx_string("epoll");
@@ -205,7 +208,7 @@ ngx_epoll_done(ngx_cycle_t *cycle)
 
 
 static ngx_int_t
-ngx_epoll_add_event(ngx_event_t *ev, int event, u_int flags)
+ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     int                  op;
     uint32_t             events, prev;
@@ -240,7 +243,7 @@ ngx_epoll_add_event(ngx_event_t *ev, int event, u_int flags)
         op = EPOLL_CTL_ADD;
     }
 
-    ee.events = events | flags;
+    ee.events = events | (uint32_t) flags;
     ee.data.ptr = (void *) ((uintptr_t) c | ev->instance);
 
     ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
@@ -263,7 +266,7 @@ ngx_epoll_add_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_epoll_del_event(ngx_event_t *ev, int event, u_int flags)
+ngx_epoll_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     int                  op;
     uint32_t             prev;
@@ -295,7 +298,7 @@ ngx_epoll_del_event(ngx_event_t *ev, int event, u_int flags)
 
     if (e->active) {
         op = EPOLL_CTL_MOD;
-        ee.events = prev | flags;
+        ee.events = prev | (uint32_t) flags;
         ee.data.ptr = (void *) ((uintptr_t) c | ev->instance);
 
     } else {
@@ -345,10 +348,10 @@ ngx_epoll_add_connection(ngx_connection_t *c)
 
 
 static ngx_int_t
-ngx_epoll_del_connection(ngx_connection_t *c, u_int flags)
+ngx_epoll_del_connection(ngx_connection_t *c, ngx_uint_t flags)
 {
-    int                  op;
-    struct epoll_event   ee;
+    int                 op;
+    struct epoll_event  ee;
 
     /*
      * when the file descriptor is closed the epoll automatically deletes
@@ -399,7 +402,7 @@ ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags)
     ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
                    "epoll timer: %M", timer);
 
-    events = epoll_wait(ep, event_list, nevents, timer);
+    events = epoll_wait(ep, event_list, (int) nevents, timer);
 
     if (events == -1) {
         err = ngx_errno;
diff --git a/src/event/modules/ngx_eventport_module.c b/src/event/modules/ngx_eventport_module.c
index 0abb2eec1..85cd1958d 100644
--- a/src/event/modules/ngx_eventport_module.c
+++ b/src/event/modules/ngx_eventport_module.c
@@ -40,9 +40,9 @@ typedef struct  port_notify {
     void       *portnfy_user;   /* user defined */
 } port_notify_t;
 
-typedef struct itimerspec {         /* definition per POSIX.4 */
-    struct timespec it_interval;    /* timer period */
-    struct timespec it_value;       /* timer expiration */
+typedef struct itimerspec {     /* definition per POSIX.4 */
+    struct timespec it_interval;/* timer period */
+    struct timespec it_value;   /* timer expiration */
 } itimerspec_t;
 
 int port_create(void)
@@ -87,16 +87,16 @@ int timer_delete(timer_t timerid)
 
 
 typedef struct {
-    u_int  events;
+    ngx_uint_t  events;
 } ngx_eventport_conf_t;
 
 
 static ngx_int_t ngx_eventport_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_eventport_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_eventport_add_event(ngx_event_t *ev, int event,
-    u_int flags);
-static ngx_int_t ngx_eventport_del_event(ngx_event_t *ev, int event,
-    u_int flags);
+static ngx_int_t ngx_eventport_add_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_eventport_del_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
 static ngx_int_t ngx_eventport_process_events(ngx_cycle_t *cycle,
     ngx_msec_t timer, ngx_uint_t flags);
 
@@ -105,7 +105,7 @@ static char *ngx_eventport_init_conf(ngx_cycle_t *cycle, void *conf);
 
 static int            ep = -1;
 static port_event_t  *event_list;
-static u_int          nevents;
+static ngx_uint_t     nevents;
 static timer_t        event_timer = -1;
 
 static ngx_str_t      eventport_name = ngx_string("eventport");
@@ -261,9 +261,9 @@ ngx_eventport_done(ngx_cycle_t *cycle)
 
 
 static ngx_int_t
-ngx_eventport_add_event(ngx_event_t *ev, int event, u_int flags)
+ngx_eventport_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
-    int                events, prev;
+    ngx_int_t          events, prev;
     ngx_event_t       *e;
     ngx_connection_t  *c;
 
@@ -291,7 +291,7 @@ ngx_eventport_add_event(ngx_event_t *ev, int event, u_int flags)
     }
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "eventport add event: fd:%d ev:%04Xd", c->fd, events);
+                   "eventport add event: fd:%d ev:%04Xi", c->fd, events);
 
     if (port_associate(ep, PORT_SOURCE_FD, c->fd, events,
                        (void *) ((uintptr_t) ev | ev->instance))
@@ -310,7 +310,7 @@ ngx_eventport_add_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_eventport_del_event(ngx_event_t *ev, int event, u_int flags)
+ngx_eventport_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_event_t       *e;
     ngx_connection_t  *c;
@@ -340,7 +340,7 @@ ngx_eventport_del_event(ngx_event_t *ev, int event, u_int flags)
 
     if (e->oneshot) {
         ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                       "eventport change event: fd:%d ev:%04Xd", c->fd, event);
+                       "eventport change event: fd:%d ev:%04Xi", c->fd, event);
 
         if (port_associate(ep, PORT_SOURCE_FD, c->fd, event,
                            (void *) ((uintptr_t) ev | ev->instance))
@@ -396,7 +396,7 @@ ngx_eventport_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
 
     events = 1;
 
-    n = port_getn(ep, event_list, nevents, &events, tp);
+    n = port_getn(ep, event_list, (u_int) nevents, &events, tp);
 
     err = ngx_errno;
 
diff --git a/src/event/modules/ngx_kqueue_module.c b/src/event/modules/ngx_kqueue_module.c
index af9167593..c5fd6d80e 100644
--- a/src/event/modules/ngx_kqueue_module.c
+++ b/src/event/modules/ngx_kqueue_module.c
@@ -11,16 +11,19 @@
 
 
 typedef struct {
-    int  changes;
-    int  events;
+    ngx_uint_t  changes;
+    ngx_uint_t  events;
 } ngx_kqueue_conf_t;
 
 
 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_kqueue_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags);
+static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter,
+    ngx_uint_t flags);
 static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try);
 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
     ngx_uint_t flags);
@@ -43,7 +46,7 @@ int                    ngx_kqueue = -1;
 
 static struct kevent  *change_list, *change_list0, *change_list1;
 static struct kevent  *event_list;
-static int             max_changes, nchanges, nevents;
+static ngx_uint_t      max_changes, nchanges, nevents;
 
 #if (NGX_THREADS)
 static ngx_mutex_t    *list_mutex;
@@ -151,7 +154,9 @@ ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
             ts.tv_sec = 0;
             ts.tv_nsec = 0;
 
-            if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
+            if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
+                == -1)
+            {
                 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
                               "kevent() failed");
                 return NGX_ERROR;
@@ -273,7 +278,7 @@ ngx_kqueue_done(ngx_cycle_t *cycle)
 
 
 static ngx_int_t
-ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
+ngx_kqueue_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_int_t          rc;
 #if 0
@@ -289,7 +294,7 @@ ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
 
 #if 0
 
-    if (ev->index < (u_int) nchanges
+    if (ev->index < nchanges
         && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
             == (uintptr_t) ev)
     {
@@ -301,10 +306,10 @@ ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
              */
 
             ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                           "kevent activated: %d: ft:%d",
+                           "kevent activated: %d: ft:%i",
                            ngx_event_ident(ev->data), event);
 
-            if (ev->index < (u_int) --nchanges) {
+            if (ev->index < --nchanges) {
                 e = (ngx_event_t *)
                     ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
                 change_list[ev->index] = change_list[nchanges];
@@ -337,7 +342,7 @@ ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
+ngx_kqueue_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_int_t     rc;
     ngx_event_t  *e;
@@ -347,19 +352,19 @@ ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
 
     ngx_mutex_lock(list_mutex);
 
-    if (ev->index < (u_int) nchanges
+    if (ev->index < nchanges
         && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
             == (uintptr_t) ev)
     {
         ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                       "kevent deleted: %d: ft:%d",
+                       "kevent deleted: %d: ft:%i",
                        ngx_event_ident(ev->data), event);
 
         /* if the event is still not passed to a kernel we will not pass it */
 
         nchanges--;
 
-        if (ev->index < (u_int) nchanges) {
+        if (ev->index < nchanges) {
             e = (ngx_event_t *)
                     ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
             change_list[ev->index] = change_list[nchanges];
@@ -396,7 +401,7 @@ ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
+ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter, ngx_uint_t flags)
 {
     struct kevent     *kev;
     struct timespec    ts;
@@ -405,7 +410,7 @@ ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
     c = ev->data;
 
     ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
-                   "kevent set event: %d: ft:%d fl:%04Xd",
+                   "kevent set event: %d: ft:%i fl:%04Xi",
                    c->fd, filter, flags);
 
     if (nchanges >= max_changes) {
@@ -415,7 +420,9 @@ ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
         ts.tv_sec = 0;
         ts.tv_nsec = 0;
 
-        if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
+        if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
+            == -1)
+        {
             ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
             return NGX_ERROR;
         }
@@ -426,8 +433,8 @@ ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
     kev = &change_list[nchanges];
 
     kev->ident = c->fd;
-    kev->filter = filter;
-    kev->flags = flags;
+    kev->filter = (short) filter;
+    kev->flags = (u_short) flags;
     kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
 
     if (filter == EVFILT_VNODE) {
@@ -482,7 +489,7 @@ ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
         n = 0;
 
     } else {
-        n = nchanges;
+        n = (int) nchanges;
         nchanges = 0;
     }
 
@@ -510,7 +517,7 @@ ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
                    "kevent timer: %M, changes: %d", timer, n);
 
-    events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
+    events = kevent(ngx_kqueue, change_list, n, event_list, (int) nevents, tp);
 
     if (events == -1) {
         err = ngx_errno;
@@ -696,7 +703,7 @@ ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
         change_list = change_list0;
     }
 
-    n = nchanges;
+    n = (int) nchanges;
     nchanges = 0;
 
     ngx_mutex_unlock(list_mutex);
@@ -758,8 +765,8 @@ ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
 {
     ngx_kqueue_conf_t *kcf = conf;
 
-    ngx_conf_init_value(kcf->changes, 512);
-    ngx_conf_init_value(kcf->events, 512);
+    ngx_conf_init_uint_value(kcf->changes, 512);
+    ngx_conf_init_uint_value(kcf->events, 512);
 
     return NGX_CONF_OK;
 }
diff --git a/src/event/modules/ngx_kqueue_module.h b/src/event/modules/ngx_kqueue_module.h
index 2e000c4ec..096d4ae05 100644
--- a/src/event/modules/ngx_kqueue_module.h
+++ b/src/event/modules/ngx_kqueue_module.h
@@ -13,5 +13,4 @@ extern ngx_module_t        ngx_kqueue_module;
 extern ngx_event_module_t  ngx_kqueue_module_ctx;
 
 
-
 #endif /* _NGX_KQUEUE_MODULE_H_INCLUDED_ */
diff --git a/src/event/modules/ngx_poll_module.c b/src/event/modules/ngx_poll_module.c
index 199b25bff..db9c41945 100644
--- a/src/event/modules/ngx_poll_module.c
+++ b/src/event/modules/ngx_poll_module.c
@@ -11,15 +11,17 @@
 
 static ngx_int_t ngx_poll_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_poll_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_poll_add_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_poll_del_event(ngx_event_t *ev, int event, u_int flags);
+static ngx_int_t ngx_poll_add_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_poll_del_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
 static ngx_int_t ngx_poll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
     ngx_uint_t flags);
 static char *ngx_poll_init_conf(ngx_cycle_t *cycle, void *conf);
 
 
 static struct pollfd  *event_list;
-static int             nevents;
+static ngx_int_t       nevents;
 
 
 static ngx_str_t    poll_name = ngx_string("poll");
@@ -108,7 +110,7 @@ ngx_poll_done(ngx_cycle_t *cycle)
 
 
 static ngx_int_t
-ngx_poll_add_event(ngx_event_t *ev, int event, u_int flags)
+ngx_poll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_event_t       *e;
     ngx_connection_t  *c;
@@ -119,7 +121,7 @@ ngx_poll_add_event(ngx_event_t *ev, int event, u_int flags)
 
     if (ev->index != NGX_INVALID_INDEX) {
         ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
-                      "poll event fd:%d ev:%d is already set", c->fd, event);
+                      "poll event fd:%d ev:%i is already set", c->fd, event);
         return NGX_OK;
     }
 
@@ -137,11 +139,11 @@ ngx_poll_add_event(ngx_event_t *ev, int event, u_int flags)
     }
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "poll add event: fd:%d ev:%d", c->fd, event);
+                   "poll add event: fd:%d ev:%i", c->fd, event);
 
     if (e == NULL || e->index == NGX_INVALID_INDEX) {
         event_list[nevents].fd = c->fd;
-        event_list[nevents].events = event;
+        event_list[nevents].events = (short) event;
         event_list[nevents].revents = 0;
 
         ev->index = nevents;
@@ -149,9 +151,9 @@ ngx_poll_add_event(ngx_event_t *ev, int event, u_int flags)
 
     } else {
         ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                       "poll add index: %d", e->index);
+                       "poll add index: %i", e->index);
 
-        event_list[e->index].events |= event;
+        event_list[e->index].events |= (short) event;
         ev->index = e->index;
     }
 
@@ -160,7 +162,7 @@ ngx_poll_add_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_poll_del_event(ngx_event_t *ev, int event, u_int flags)
+ngx_poll_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_event_t       *e;
     ngx_connection_t  *c;
@@ -171,7 +173,7 @@ ngx_poll_del_event(ngx_event_t *ev, int event, u_int flags)
 
     if (ev->index == NGX_INVALID_INDEX) {
         ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
-                      "poll event fd:%d ev:%d is already deleted",
+                      "poll event fd:%d ev:%i is already deleted",
                       c->fd, event);
         return NGX_OK;
     }
@@ -190,15 +192,15 @@ ngx_poll_del_event(ngx_event_t *ev, int event, u_int flags)
     }
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "poll del event: fd:%d ev:%d", c->fd, event);
+                   "poll del event: fd:%d ev:%i", c->fd, event);
 
     if (e == NULL || e->index == NGX_INVALID_INDEX) {
         nevents--;
 
-        if (ev->index < (u_int) nevents) {
+        if (ev->index < (ngx_uint_t) nevents) {
 
             ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                           "index: copy event %d to %d", nevents, ev->index);
+                           "index: copy event %ui to %i", nevents, ev->index);
 
             event_list[ev->index] = event_list[nevents];
 
@@ -209,11 +211,11 @@ ngx_poll_del_event(ngx_event_t *ev, int event, u_int flags)
                               "unexpected last event");
 
             } else {
-                if (c->read->index == (u_int) nevents) {
+                if (c->read->index == (ngx_uint_t) nevents) {
                     c->read->index = ev->index;
                 }
 
-                if (c->write->index == (u_int) nevents) {
+                if (c->write->index == (ngx_uint_t) nevents) {
                     c->write->index = ev->index;
                 }
             }
@@ -221,9 +223,9 @@ ngx_poll_del_event(ngx_event_t *ev, int event, u_int flags)
 
     } else {
         ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                       "poll del index: %d", e->index);
+                       "poll del index: %i", e->index);
 
-        event_list[e->index].events &= ~event;
+        event_list[e->index].events &= (short) ~event;
     }
 
     ev->index = NGX_INVALID_INDEX;
diff --git a/src/event/modules/ngx_rtsig_module.c b/src/event/modules/ngx_rtsig_module.c
index 603cd883f..761ebe68c 100644
--- a/src/event/modules/ngx_rtsig_module.c
+++ b/src/event/modules/ngx_rtsig_module.c
@@ -29,10 +29,10 @@ int ngx_linux_rtsig_max;
 
 
 typedef struct {
-    int        signo;
-    ngx_int_t  overflow_events;
-    ngx_int_t  overflow_test;
-    ngx_int_t  overflow_threshold;
+    ngx_uint_t  signo;
+    ngx_uint_t  overflow_events;
+    ngx_uint_t  overflow_test;
+    ngx_uint_t  overflow_threshold;
 } ngx_rtsig_conf_t;
 
 
@@ -41,7 +41,8 @@ extern ngx_event_module_t  ngx_poll_module_ctx;
 static ngx_int_t ngx_rtsig_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_rtsig_done(ngx_cycle_t *cycle);
 static ngx_int_t ngx_rtsig_add_connection(ngx_connection_t *c);
-static ngx_int_t ngx_rtsig_del_connection(ngx_connection_t *c, u_int flags);
+static ngx_int_t ngx_rtsig_del_connection(ngx_connection_t *c,
+    ngx_uint_t flags);
 static ngx_int_t ngx_rtsig_process_events(ngx_cycle_t *cycle,
     ngx_msec_t timer, ngx_uint_t flags);
 static ngx_int_t ngx_rtsig_process_overflow(ngx_cycle_t *cycle,
@@ -143,8 +144,8 @@ ngx_rtsig_init(ngx_cycle_t *cycle, ngx_msec_t timer)
     rtscf = ngx_event_get_conf(cycle->conf_ctx, ngx_rtsig_module);
 
     sigemptyset(&set);
-    sigaddset(&set, rtscf->signo);
-    sigaddset(&set, rtscf->signo + 1);
+    sigaddset(&set, (int) rtscf->signo);
+    sigaddset(&set, (int) rtscf->signo + 1);
     sigaddset(&set, SIGIO);
     sigaddset(&set, SIGALRM);
 
@@ -188,7 +189,7 @@ ngx_rtsig_done(ngx_cycle_t *cycle)
 static ngx_int_t
 ngx_rtsig_add_connection(ngx_connection_t *c)
 {
-    int                signo;
+    ngx_uint_t         signo;
     ngx_rtsig_conf_t  *rtscf;
 
     if (c->read->accept && c->read->disabled) {
@@ -211,7 +212,7 @@ ngx_rtsig_add_connection(ngx_connection_t *c)
     signo = rtscf->signo + c->read->instance;
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
-                   "rtsig add connection: fd:%d signo:%d", c->fd, signo);
+                   "rtsig add connection: fd:%d signo:%ui", c->fd, signo);
 
     if (fcntl(c->fd, F_SETFL, O_RDWR|O_NONBLOCK|O_ASYNC) == -1) {
         ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
@@ -219,7 +220,7 @@ ngx_rtsig_add_connection(ngx_connection_t *c)
         return NGX_ERROR;
     }
 
-    if (fcntl(c->fd, F_SETSIG, signo) == -1) {
+    if (fcntl(c->fd, F_SETSIG, (int) signo) == -1) {
         ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
                       "fcntl(F_SETSIG) failed");
         return NGX_ERROR;
@@ -247,7 +248,7 @@ ngx_rtsig_add_connection(ngx_connection_t *c)
 
 
 static ngx_int_t
-ngx_rtsig_del_connection(ngx_connection_t *c, u_int flags)
+ngx_rtsig_del_connection(ngx_connection_t *c, ngx_uint_t flags)
 {
     ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
                    "rtsig del connection: fd:%d", c->fd);
@@ -348,7 +349,7 @@ ngx_rtsig_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags)
 
     rtscf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_rtsig_module);
 
-    if (signo == rtscf->signo || signo == rtscf->signo + 1) {
+    if (signo == (int) rtscf->signo || signo == (int) rtscf->signo + 1) {
 
         if (overflow && (ngx_uint_t) si.si_fd > overflow_current) {
             return NGX_OK;
@@ -363,7 +364,7 @@ ngx_rtsig_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags)
             return NGX_OK;
         }
 
-        instance = signo - rtscf->signo;
+        instance = signo - (int) rtscf->signo;
 
         rev = c->read;
 
@@ -459,8 +460,8 @@ ngx_rtsig_process_overflow(ngx_cycle_t *cycle, ngx_msec_t timer,
 {
     int                name[2], rtsig_max, rtsig_nr, events, ready;
     size_t             len;
-    ngx_int_t          tested, n, i;
     ngx_err_t          err;
+    ngx_uint_t         tested, n, i;
     ngx_event_t       *rev, *wev, **queue;
     ngx_connection_t  *c;
     ngx_rtsig_conf_t  *rtscf;
@@ -638,7 +639,7 @@ ngx_rtsig_process_overflow(ngx_cycle_t *cycle, ngx_msec_t timer,
                  *    "/proc/sys/kernel/rtsig-max" / "rtsig_overflow_threshold"
                  */
 
-                if (rtsig_max / rtscf->overflow_threshold < rtsig_nr) {
+                if (rtsig_max / (int) rtscf->overflow_threshold < rtsig_nr) {
                     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
                                    "rtsig queue state: %d/%d",
                                    rtsig_nr, rtsig_max);
@@ -703,19 +704,18 @@ ngx_rtsig_init_conf(ngx_cycle_t *cycle, void *conf)
     ngx_rtsig_conf_t  *rtscf = conf;
 
     /* LinuxThreads use the first 3 RT signals */
-    ngx_conf_init_value(rtscf->signo, SIGRTMIN + 10);
+    ngx_conf_init_uint_value(rtscf->signo, SIGRTMIN + 10);
 
-    ngx_conf_init_value(rtscf->overflow_events, 16);
-    ngx_conf_init_value(rtscf->overflow_test, 32);
-    ngx_conf_init_value(rtscf->overflow_threshold, 10);
+    ngx_conf_init_uint_value(rtscf->overflow_events, 16);
+    ngx_conf_init_uint_value(rtscf->overflow_test, 32);
+    ngx_conf_init_uint_value(rtscf->overflow_threshold, 10);
 
     return NGX_CONF_OK;
 }
 
 
 static char *
-ngx_check_ngx_overflow_threshold_bounds(ngx_conf_t *cf,
-                                                     void *post, void *data)
+ngx_check_ngx_overflow_threshold_bounds(ngx_conf_t *cf, void *post, void *data)
 {
     if (ngx_linux_rtsig_max) {
         return ngx_conf_check_num_bounds(cf, post, data);
diff --git a/src/event/modules/ngx_select_module.c b/src/event/modules/ngx_select_module.c
index 9ecac7f2b..1e704c2f6 100644
--- a/src/event/modules/ngx_select_module.c
+++ b/src/event/modules/ngx_select_module.c
@@ -12,8 +12,10 @@
 
 static ngx_int_t ngx_select_init(ngx_cycle_t *cycle, ngx_msec_t timer);
 static void ngx_select_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_select_add_event(ngx_event_t *ev, int event, u_int flags);
-static ngx_int_t ngx_select_del_event(ngx_event_t *ev, int event, u_int flags);
+static ngx_int_t ngx_select_add_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
+static ngx_int_t ngx_select_del_event(ngx_event_t *ev, ngx_int_t event,
+    ngx_uint_t flags);
 static ngx_int_t ngx_select_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
     ngx_uint_t flags);
 static char *ngx_select_init_conf(ngx_cycle_t *cycle, void *conf);
@@ -25,10 +27,10 @@ static fd_set         work_read_fd_set;
 static fd_set         work_write_fd_set;
 
 #if (NGX_WIN32)
-static int            max_read;
-static int            max_write;
+static ngx_uint_t     max_read;
+static ngx_uint_t     max_write;
 #else
-static int            max_fd;
+static ngx_int_t      max_fd;
 #endif
 
 static ngx_uint_t     nevents;
@@ -129,18 +131,18 @@ ngx_select_done(ngx_cycle_t *cycle)
 
 
 static ngx_int_t
-ngx_select_add_event(ngx_event_t *ev, int event, u_int flags)
+ngx_select_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_connection_t  *c;
 
     c = ev->data;
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "select add event fd:%d ev:%d", c->fd, event);
+                   "select add event fd:%d ev:%i", c->fd, event);
 
     if (ev->index != NGX_INVALID_INDEX) {
         ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
-                      "select event fd:%d ev:%d is already set", c->fd, event);
+                      "select event fd:%d ev:%i is already set", c->fd, event);
         return NGX_OK;
     }
 
@@ -190,7 +192,7 @@ ngx_select_add_event(ngx_event_t *ev, int event, u_int flags)
 
 
 static ngx_int_t
-ngx_select_del_event(ngx_event_t *ev, int event, u_int flags)
+ngx_select_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
 {
     ngx_connection_t  *c;
 
@@ -203,7 +205,7 @@ ngx_select_del_event(ngx_event_t *ev, int event, u_int flags)
     }
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "select del event fd:%d ev:%d", c->fd, event);
+                   "select del event fd:%d ev:%i", c->fd, event);
 
 #if (NGX_WIN32)
 
@@ -231,7 +233,7 @@ ngx_select_del_event(ngx_event_t *ev, int event, u_int flags)
 
 #endif
 
-    if (ev->index < (u_int) --nevents) {
+    if (ev->index < --nevents) {
         event_index[ev->index] = event_index[nevents];
         event_index[ev->index]->index = ev->index;
     }
diff --git a/src/event/ngx_event.c b/src/event/ngx_event.c
index 91efde009..d32fb7ffd 100644
--- a/src/event/ngx_event.c
+++ b/src/event/ngx_event.c
@@ -276,7 +276,7 @@ ngx_process_events_and_timers(ngx_cycle_t *cycle)
 
 
 ngx_int_t
-ngx_handle_read_event(ngx_event_t *rev, u_int flags)
+ngx_handle_read_event(ngx_event_t *rev, ngx_uint_t flags)
 {
     if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
 
diff --git a/src/event/ngx_event.h b/src/event/ngx_event.h
index e1388d5f0..a2b7c5cc5 100644
--- a/src/event/ngx_event.h
+++ b/src/event/ngx_event.h
@@ -126,7 +126,7 @@ struct ngx_event_s {
 
 #endif
 
-    u_int            index;
+    ngx_uint_t       index;
 
     ngx_log_t       *log;
 
@@ -182,7 +182,7 @@ struct ngx_event_s {
 
     /* event should not cross cache line in SMP */
 
-    int              padding[NGX_EVENT_T_PADDING];
+    uint32_t         padding[NGX_EVENT_T_PADDING];
 #endif
 #endif
 };
@@ -195,14 +195,14 @@ typedef struct {
 
 
 typedef struct {
-    ngx_int_t  (*add)(ngx_event_t *ev, int event, u_int flags);
-    ngx_int_t  (*del)(ngx_event_t *ev, int event, u_int flags);
+    ngx_int_t  (*add)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags);
+    ngx_int_t  (*del)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags);
 
-    ngx_int_t  (*enable)(ngx_event_t *ev, int event, u_int flags);
-    ngx_int_t  (*disable)(ngx_event_t *ev, int event, u_int flags);
+    ngx_int_t  (*enable)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags);
+    ngx_int_t  (*disable)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags);
 
     ngx_int_t  (*add_conn)(ngx_connection_t *c);
-    ngx_int_t  (*del_conn)(ngx_connection_t *c, u_int flags);
+    ngx_int_t  (*del_conn)(ngx_connection_t *c, ngx_uint_t flags);
 
     ngx_int_t  (*process_changes)(ngx_cycle_t *cycle, ngx_uint_t nowait);
     ngx_int_t  (*process_events)(ngx_cycle_t *cycle, ngx_msec_t timer,
@@ -489,7 +489,7 @@ u_char *ngx_accept_log_error(ngx_log_t *log, u_char *buf, size_t len);
 
 
 void ngx_process_events_and_timers(ngx_cycle_t *cycle);
-ngx_int_t ngx_handle_read_event(ngx_event_t *rev, u_int flags);
+ngx_int_t ngx_handle_read_event(ngx_event_t *rev, ngx_uint_t flags);
 ngx_int_t ngx_handle_write_event(ngx_event_t *wev, size_t lowat);
 
 
diff --git a/src/event/ngx_event_busy_lock.c b/src/event/ngx_event_busy_lock.c
index 2d0bad571..c5cecc3f5 100644
--- a/src/event/ngx_event_busy_lock.c
+++ b/src/event/ngx_event_busy_lock.c
@@ -9,7 +9,7 @@
 #include <ngx_event.h>
 
 
-static int ngx_event_busy_lock_look_cachable(ngx_event_busy_lock_t *bl,
+static ngx_int_t ngx_event_busy_lock_look_cachable(ngx_event_busy_lock_t *bl,
     ngx_event_busy_lock_ctx_t *ctx);
 static void ngx_event_busy_lock_handler(ngx_event_t *ev);
 static void ngx_event_busy_lock_posted_handler(ngx_event_t *ev);
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index d31196887..5cfc703e8 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -198,7 +198,7 @@ ngx_int_t
 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
     ngx_str_t *key)
 {
-    if (ngx_conf_full_name(cf->cycle, cert) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
         return NGX_ERROR;
     }
 
@@ -211,7 +211,7 @@ ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
         return NGX_ERROR;
     }
 
-    if (ngx_conf_full_name(cf->cycle, key) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, key, 1) == NGX_ERROR) {
         return NGX_ERROR;
     }
 
@@ -242,7 +242,7 @@ ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
         return NGX_OK;
     }
 
-    if (ngx_conf_full_name(cf->cycle, cert) == NGX_ERROR) {
+    if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
         return NGX_ERROR;
     }
 
@@ -784,7 +784,7 @@ ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
     /* the maximum limit size is the maximum uint32_t value - the page size */
 
-    if (limit == 0 || limit > NGX_MAX_UINT32_VALUE - ngx_pagesize) {
+    if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) {
         limit = NGX_MAX_UINT32_VALUE - ngx_pagesize;
     }
 
diff --git a/src/http/modules/ngx_http_auth_basic_module.c b/src/http/modules/ngx_http_auth_basic_module.c
index 19bfe996e..72b4bbdcb 100644
--- a/src/http/modules/ngx_http_auth_basic_module.c
+++ b/src/http/modules/ngx_http_auth_basic_module.c
@@ -352,7 +352,7 @@ ngx_http_auth_basic_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
     }
 
     if (conf->user_file.data) {
-        if (ngx_conf_full_name(cf->cycle, &conf->user_file) != NGX_OK) {
+        if (ngx_conf_full_name(cf->cycle, &conf->user_file, 1) != NGX_OK) {
             return NGX_CONF_ERROR;
         }
 
diff --git a/src/http/modules/ngx_http_geo_module.c b/src/http/modules/ngx_http_geo_module.c
index 62ef72cf9..9c43bd716 100644
--- a/src/http/modules/ngx_http_geo_module.c
+++ b/src/http/modules/ngx_http_geo_module.c
@@ -198,7 +198,7 @@ ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
     if (ngx_strcmp(value[0].data, "include") == 0) {
         file = value[1];
 
-        if (ngx_conf_full_name(cf->cycle, &file) == NGX_ERROR){
+        if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR){
             return NGX_CONF_ERROR;
         }
 
diff --git a/src/http/modules/ngx_http_map_module.c b/src/http/modules/ngx_http_map_module.c
index 4a8acd00d..7b3a363fc 100644
--- a/src/http/modules/ngx_http_map_module.c
+++ b/src/http/modules/ngx_http_map_module.c
@@ -378,7 +378,7 @@ ngx_http_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
     if (ngx_strcmp(value[0].data, "include") == 0) {
         file = value[1];
 
-        if (ngx_conf_full_name(cf->cycle, &file) == NGX_ERROR){
+        if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR){
             return NGX_CONF_ERROR;
         }
 
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index c999adea2..52f67b305 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -2237,6 +2237,7 @@ ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             if (port == 80) {
                 plcf->port.len = sizeof("80") - 1;
                 plcf->port.data = (u_char *) "80";
+
             } else {
                 plcf->port.len = sizeof("443") - 1;
                 plcf->port.data = (u_char *) "443";
@@ -2275,13 +2276,17 @@ ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     plcf->upstream.location = clcf->name;
 
+    if (clcf->named
 #if (NGX_PCRE)
-
-    if (clcf->regex || clcf->noname) {
+        || clcf->regex
+#endif
+        || clcf->noname)
+    {
         if (plcf->upstream.uri.len) {
             ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                                "\"proxy_pass\" may not have URI part in "
                                "location given by regular expression, "
+                               "or inside named location, "
                                "or inside the \"if\" statement, "
                                "or inside the \"limit_except\" block");
             return NGX_CONF_ERROR;
@@ -2290,8 +2295,6 @@ ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         plcf->upstream.location.len = 0;
     }
 
-#endif
-
     plcf->upstream.url = *url;
 
     if (clcf->name.data[clcf->name.len - 1] == '/') {
diff --git a/src/http/modules/perl/nginx.pm b/src/http/modules/perl/nginx.pm
index f510f2df0..ca86b7840 100644
--- a/src/http/modules/perl/nginx.pm
+++ b/src/http/modules/perl/nginx.pm
@@ -47,7 +47,7 @@ our @EXPORT = qw(
     HTTP_INSUFFICIENT_STORAGE
 );
 
-our $VERSION = '0.6.5';
+our $VERSION = '0.6.6';
 
 require XSLoader;
 XSLoader::load('nginx', $VERSION);
diff --git a/src/http/modules/perl/ngx_http_perl_module.c b/src/http/modules/perl/ngx_http_perl_module.c
index 248f57823..836a415c9 100644
--- a/src/http/modules/perl/ngx_http_perl_module.c
+++ b/src/http/modules/perl/ngx_http_perl_module.c
@@ -454,7 +454,7 @@ ngx_http_perl_init_interpreter(ngx_conf_t *cf, ngx_http_perl_main_conf_t *pmcf)
 #endif
 
     if (pmcf->modules.data) {
-        if (ngx_conf_full_name(cf->cycle, &pmcf->modules) != NGX_OK) {
+        if (ngx_conf_full_name(cf->cycle, &pmcf->modules, 0) != NGX_OK) {
             return NGX_CONF_ERROR;
         }
     }
diff --git a/src/http/ngx_http.c b/src/http/ngx_http.c
index 5823a2b91..dfe6eff70 100644
--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -401,6 +401,7 @@ ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
 
     cmcf->phase_engine.server_rewrite_index = (ngx_uint_t) -1;
+    cmcf->phase_engine.location_rewrite_index = (ngx_uint_t) -1;
     find_config_index = 0;
     use_rewrite = cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers.nelts ? 1 : 0;
     use_access = cmcf->phases[NGX_HTTP_ACCESS_PHASE].handlers.nelts ? 1 : 0;
@@ -442,6 +443,14 @@ ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
             continue;
 
+        case NGX_HTTP_REWRITE_PHASE:
+            if (cmcf->phase_engine.location_rewrite_index == (ngx_uint_t) -1) {
+                cmcf->phase_engine.location_rewrite_index = n;
+            }
+            checker = ngx_http_core_generic_phase;
+
+            break;
+
         case NGX_HTTP_POST_REWRITE_PHASE:
             if (use_rewrite) {
                 ph->checker = ngx_http_core_post_rewrite_phase;
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index a903c9a24..0e732cfe2 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -945,13 +945,12 @@ ngx_http_core_find_location(ngx_http_request_t *r,
     clcfp = locations->elts;
     for (i = 0; i < locations->nelts; i++) {
 
+        if (clcfp[i]->noname
 #if (NGX_PCRE)
-        if (clcfp[i]->regex) {
-            break;
-        }
+            || clcfp[i]->regex
 #endif
-
-        if (clcfp[i]->noname) {
+            || clcfp[i]->named)
+        {
             break;
         }
 
@@ -1028,7 +1027,7 @@ ngx_http_core_find_location(ngx_http_request_t *r,
 
     for (i = regex_start; i < locations->nelts; i++) {
 
-        if (clcfp[i]->noname) {
+        if (!clcfp[i]->regex) {
             break;
         }
 
@@ -1223,7 +1222,8 @@ ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *path,
             return NULL;
         }
 
-        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, path) == NGX_ERROR) {
+        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, path, 0)== NGX_ERROR)
+        {
             return NULL;
         }
 
@@ -1513,6 +1513,51 @@ ngx_http_internal_redirect(ngx_http_request_t *r,
 }
 
 
+ngx_int_t
+ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name)
+{
+    ngx_uint_t                   i;
+    ngx_http_core_srv_conf_t    *cscf;
+    ngx_http_core_loc_conf_t   **clcfp;
+    ngx_http_core_main_conf_t   *cmcf;
+
+    cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
+
+    clcfp = cscf->locations.elts;
+
+    for (i = cscf->named_start; i < cscf->locations.nelts; i++) {
+
+        if (name->len != clcfp[i]->name.len
+            || ngx_strncmp(name->data, clcfp[i]->name.data, name->len) != 0)
+        {
+            continue;
+        }
+
+        ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                       "named location: %V \"%V?%V\"", name, &r->uri, &r->args);
+
+        r->internal = 1;
+
+        r->loc_conf = clcfp[i]->loc_conf;
+
+        ngx_http_update_location_config(r);
+
+        cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
+
+        r->phase_handler = cmcf->phase_engine.location_rewrite_index;
+        ngx_http_core_run_phases(r);
+
+        return NGX_DONE;
+    }
+
+    ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                  "could not find name location \"%V\"", name);
+
+    ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+    return NGX_DONE;
+}
+
+
 ngx_http_cleanup_t *
 ngx_http_cleanup_add(ngx_http_request_t *r, size_t size)
 {
@@ -1557,10 +1602,8 @@ ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
     ngx_http_module_t           *module;
     ngx_http_conf_ctx_t         *ctx, *http_ctx;
     ngx_http_core_srv_conf_t    *cscf, **cscfp;
-    ngx_http_core_main_conf_t   *cmcf;
-#if (NGX_PCRE)
     ngx_http_core_loc_conf_t   **clcfp;
-#endif
+    ngx_http_core_main_conf_t   *cmcf;
 
     ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
     if (ctx == NULL) {
@@ -1644,10 +1687,11 @@ ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
     ngx_sort(cscf->locations.elts, (size_t) cscf->locations.nelts,
              sizeof(ngx_http_core_loc_conf_t *), ngx_http_core_cmp_locations);
 
+    clcfp = cscf->locations.elts;
+
 #if (NGX_PCRE)
 
     cscf->regex_start = cscf->locations.nelts;
-    clcfp = cscf->locations.elts;
 
     for (i = 0; i < cscf->locations.nelts; i++) {
         if (clcfp[i]->regex) {
@@ -1658,6 +1702,15 @@ ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
 
 #endif
 
+    cscf->named_start = cscf->locations.nelts;
+
+    for (i = 0; i < cscf->locations.nelts; i++) {
+        if (clcfp[i]->named) {
+            cscf->named_start = i;
+            break;
+        }
+    }
+
     return rv;
 }
 
@@ -1758,7 +1811,12 @@ ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
         }
 
     } else {
+
         clcf->name = value[1];
+
+        if (value[1].data[0] == '@') {
+            clcf->named = 1;
+        }
     }
 
     pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index];
@@ -1784,6 +1842,14 @@ ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
             return NGX_CONF_ERROR;
         }
 
+        if (pclcf->named) {
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                               "location \"%V\" could not be inside "
+                               "the named location \"%V\"",
+                               &clcf->name, &pclcf->name);
+            return NGX_CONF_ERROR;
+        }
+
 #if (NGX_PCRE)
         if (clcf->regex == NULL
             && ngx_strncmp(clcf->name.data, pclcf->name.data, pclcf->name.len)
@@ -1861,6 +1927,20 @@ ngx_http_core_cmp_locations(const void *one, const void *two)
     first = *(ngx_http_core_loc_conf_t **) one;
     second = *(ngx_http_core_loc_conf_t **) two;
 
+    if (first->named && !second->named) {
+        /* shift named locations to the end */
+        return 1;
+    }
+
+    if (!first->named && second->named) {
+        /* shift named locations to the end */
+        return -1;
+    }
+
+    if (first->named && second->named) {
+        return ngx_strcmp(first->name.data, second->name.data);
+    }
+
     if (first->noname && !second->noname) {
         /* shift no named locations to the end */
         return 1;
@@ -1947,7 +2027,7 @@ ngx_http_core_type(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
     if (ngx_strcmp(value[0].data, "include") == 0) {
         file = value[1];
 
-        if (ngx_conf_full_name(cf->cycle, &file) == NGX_ERROR){
+        if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR){
             return NGX_CONF_ERROR;
         }
 
@@ -2290,7 +2370,7 @@ ngx_http_core_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
             conf->root.len = sizeof("html") - 1;
             conf->root.data = (u_char *) "html";
 
-            if (ngx_conf_full_name(cf->cycle, &conf->root) == NGX_ERROR) {
+            if (ngx_conf_full_name(cf->cycle, &conf->root, 0) == NGX_ERROR) {
                 return NGX_CONF_ERROR;
             }
         }
@@ -2706,6 +2786,14 @@ ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         return NGX_CONF_ERROR;
     }
 
+    if (lcf->named && alias) {
+        ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                           "the \"alias\" directive may not be used "
+                           "inside named location");
+
+        return NGX_CONF_ERROR;
+    }
+
 #if (NGX_PCRE)
 
     if (lcf->regex && alias) {
@@ -2739,7 +2827,7 @@ ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     }
 
     if (lcf->root.data[0] != '$') {
-        if (ngx_conf_full_name(cf->cycle, &lcf->root) == NGX_ERROR) {
+        if (ngx_conf_full_name(cf->cycle, &lcf->root, 0) == NGX_ERROR) {
             return NGX_CONF_ERROR;
         }
     }
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index 59e4624a9..dc443f64a 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -79,6 +79,7 @@ struct ngx_http_phase_handler_s {
 typedef struct {
     ngx_http_phase_handler_t  *handlers;
     ngx_uint_t                 server_rewrite_index;
+    ngx_uint_t                 location_rewrite_index;
 } ngx_http_phase_engine_t;
 
 
@@ -117,7 +118,8 @@ typedef struct {
      */
     ngx_array_t                locations;
 
-    unsigned                   regex_start:16;
+    unsigned                   regex_start:15;
+    unsigned                   named_start:15;
     unsigned                   wildcard:1;
 
     /* array of the ngx_http_listen_t, "listen" directive */
@@ -212,9 +214,10 @@ struct ngx_http_core_loc_conf_s {
     ngx_regex_t  *regex;
 #endif
 
-    unsigned      regex_start:16;
+    unsigned      regex_start:15;
 
-    unsigned      noname:1;   /* "if () {}" block */
+    unsigned      noname:1;   /* "if () {}" block or limit_except */
+    unsigned      named:1;
 
     unsigned      exact_match:1;
     unsigned      noregex:1;
@@ -314,6 +317,8 @@ ngx_int_t ngx_http_subrequest(ngx_http_request_t *r,
     ngx_http_post_subrequest_t *psr, ngx_uint_t flags);
 ngx_int_t ngx_http_internal_redirect(ngx_http_request_t *r,
     ngx_str_t *uri, ngx_str_t *args);
+ngx_int_t ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name);
+
 
 ngx_http_cleanup_t *ngx_http_cleanup_add(ngx_http_request_t *r, size_t size);
 
diff --git a/src/http/ngx_http_special_response.c b/src/http/ngx_http_special_response.c
index 2598116f7..1797603a0 100644
--- a/src/http/ngx_http_special_response.c
+++ b/src/http/ngx_http_special_response.c
@@ -409,6 +409,10 @@ ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
                     return ngx_http_internal_redirect(r, uri, NULL);
                 }
 
+                if (uri->data[0] == '@') {
+                    return ngx_http_named_location(r, uri);
+                }
+
                 r->headers_out.location =
                                         ngx_list_push(&r->headers_out.headers);
 
diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 376b85fcd..bc4567458 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -3209,6 +3209,12 @@ ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
             continue;
         }
 
+        if (uscfp[i]->default_port && u->default_port
+            && uscfp[i]->default_port != u->default_port)
+        {
+            continue;
+        }
+
         return uscfp[i];
     }
 
diff --git a/src/http/ngx_http_upstream_round_robin.c b/src/http/ngx_http_upstream_round_robin.c
index af90d1d59..6756d2bc2 100644
--- a/src/http/ngx_http_upstream_round_robin.c
+++ b/src/http/ngx_http_upstream_round_robin.c
@@ -9,6 +9,10 @@
 #include <ngx_http.h>
 
 
+static ngx_uint_t
+ngx_http_upstream_get_peer(ngx_http_upstream_rr_peers_t *peers);
+
+
 ngx_int_t
 ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
     ngx_http_upstream_srv_conf_t *us)
@@ -215,7 +219,12 @@ ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
             /* it's a first try - get a current peer */
 
             for ( ;; ) {
-                rrp->current = rrp->peers->current;
+                rrp->current = ngx_http_upstream_get_peer(rrp->peers);
+
+                ngx_log_debug2(NGX_LOG_DEBUG_HTTP, pc->log, 0,
+                               "get rr peer, current: %ui %i",
+                               rrp->current,
+                               rrp->peers->peer[rrp->current].current_weight);
 
                 n = rrp->current / (8 * sizeof(uintptr_t));
                 m = (uintptr_t) 1 << rrp->current % (8 * sizeof(uintptr_t));
@@ -236,6 +245,8 @@ ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
                             break;
                         }
 
+                        peer->current_weight = 0;
+
                     } else {
                         rrp->tried[n] |= m;
                     }
@@ -243,12 +254,6 @@ ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
                     pc->tries--;
                 }
 
-                rrp->peers->current++;
-
-                if (rrp->peers->current >= rrp->peers->number) {
-                    rrp->peers->current = 0;
-                }
-
                 if (pc->tries) {
                     continue;
                 }
@@ -258,16 +263,6 @@ ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
 
             peer->current_weight--;
 
-            if (peer->current_weight == 0) {
-                peer->current_weight = peer->weight;
-
-                rrp->peers->current++;
-
-                if (rrp->peers->current >= rrp->peers->number) {
-                    rrp->peers->current = 0;
-                }
-            }
-
         } else {
             for ( ;; ) {
                 n = rrp->current / (8 * sizeof(uintptr_t));
@@ -290,6 +285,8 @@ ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
                             break;
                         }
 
+                        peer->current_weight = 0;
+
                     } else {
                         rrp->tried[n] |= m;
                     }
@@ -311,18 +308,6 @@ ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
             }
 
             peer->current_weight--;
-
-            if (peer->current_weight == 0) {
-                peer->current_weight = peer->weight;
-
-                if (rrp->current == rrp->peers->current) {
-                    rrp->peers->current++;
-
-                    if (rrp->peers->current >= rrp->peers->number) {
-                        rrp->peers->current = 0;
-                    }
-                }
-            }
         }
 
         rrp->tried[n] |= m;
@@ -352,6 +337,61 @@ failed:
 }
 
 
+static ngx_uint_t
+ngx_http_upstream_get_peer(ngx_http_upstream_rr_peers_t *peers)
+{
+    ngx_uint_t                    i, n;
+    ngx_http_upstream_rr_peer_t  *peer;
+
+    peer = &peers->peer[0];
+
+    for ( ;; ) {
+
+        for (i = 0; i < peers->number; i++) {
+
+            if (peer[i].current_weight <= 0) {
+                continue;
+            }
+
+            n = i;
+
+            while (i < peers->number - 1) {
+
+                i++;
+
+                if (peer[i].current_weight <= 0) {
+                    continue;
+                }
+
+                if (peer[n].current_weight * 1000 / peer[i].current_weight
+                    >= peer[n].weight * 1000 / peer[i].weight)
+                {
+                    return n;
+                }
+
+                n = i;
+            }
+
+            if (peer[i].current_weight > 0) {
+                n = i;
+            }
+
+            return n;
+        }
+
+        for (i = 0; i < peers->number; i++) {
+            if (peer[i].fails == 0) {
+                peer[i].current_weight += peer[i].weight;
+
+            } else {
+                /* 1 allows to go to quick recovery when all peers failed */
+                peer[i].current_weight = 1;
+            }
+        }
+    }
+}
+
+
 void
 ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc, void *data,
     ngx_uint_t state)
@@ -385,8 +425,14 @@ ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc, void *data,
         peer->fails++;
         peer->accessed = now;
 
-        if (peer->current_weight > 1) {
-            peer->current_weight /= 2;
+        peer->current_weight -= peer->weight / peer->max_fails;
+
+        ngx_log_debug2(NGX_LOG_DEBUG_HTTP, pc->log, 0,
+                       "free rr peer failed: %ui %i",
+                       rrp->current, peer->current_weight);
+
+        if (peer->current_weight < 0) {
+            peer->current_weight = 0;
         }
 
         /* ngx_unlock_mutex(rrp->peers->mutex); */
diff --git a/src/http/ngx_http_upstream_round_robin.h b/src/http/ngx_http_upstream_round_robin.h
index 2e2bf132f..15e69153a 100644
--- a/src/http/ngx_http_upstream_round_robin.h
+++ b/src/http/ngx_http_upstream_round_robin.h
@@ -18,8 +18,8 @@ typedef struct {
     socklen_t                       socklen;
     ngx_str_t                       name;
 
-    ngx_uint_t                      current_weight;
-    ngx_uint_t                      weight;
+    ngx_int_t                       current_weight;
+    ngx_int_t                       weight;
 
     ngx_uint_t                      fails;
     time_t                          accessed;
@@ -29,15 +29,13 @@ typedef struct {
 
     ngx_uint_t                      down;          /* unsigned  down:1; */
 
-#if (NGX_SSL)
+#if (NGX_HTTP_SSL)
     ngx_ssl_session_t              *ssl_session;   /* local to a process */
 #endif
 } ngx_http_upstream_rr_peer_t;
 
 
 typedef struct {
-    ngx_uint_t                      current;
-
     ngx_uint_t                      number;
     ngx_uint_t                      last_cached;
 
diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index af54d29b0..123017d80 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -13,6 +13,8 @@
 
 static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data);
+static void ngx_http_variable_request_set(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data);
 static void ngx_http_variable_request_set_size(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data);
 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
@@ -39,6 +41,8 @@ static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data);
 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data);
+static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data);
 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data);
 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r,
@@ -155,9 +159,14 @@ static ngx_http_variable_t  ngx_http_core_variables[] = {
       offsetof(ngx_http_request_t, args),
       NGX_HTTP_VAR_NOCACHABLE, 0 },
 
-    { ngx_string("args"), NULL, ngx_http_variable_request,
+    { ngx_string("args"),
+      ngx_http_variable_request_set,
+      ngx_http_variable_request,
       offsetof(ngx_http_request_t, args),
-      NGX_HTTP_VAR_NOCACHABLE, 0 },
+      NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOCACHABLE, 0 },
+
+    { ngx_string("is_args"), NULL, ngx_http_variable_is_args,
+      0, NGX_HTTP_VAR_NOCACHABLE, 0 },
 
     { ngx_string("request_filename"), NULL,
       ngx_http_variable_request_filename, 0,
@@ -501,6 +510,19 @@ ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
 
 
 static void
+ngx_http_variable_request_set(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data)
+{
+    ngx_str_t  *s;
+
+    s = (ngx_str_t *) ((char *) r + data);
+
+    s->len = v->len;
+    s->data = v->data;
+}
+
+
+static void
 ngx_http_variable_request_set_size(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data)
 {
@@ -860,6 +882,27 @@ ngx_http_variable_scheme(ngx_http_request_t *r,
 
 
 static ngx_int_t
+ngx_http_variable_is_args(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data)
+{
+    v->valid = 1;
+    v->no_cachable = 0;
+    v->not_found = 0;
+
+    if (r->args.len == 0) {
+        v->len = 0;
+        v->data = NULL;
+        return NGX_OK;
+    }
+
+    v->len = 1;
+    v->data = (u_char *) "?";
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
 ngx_http_variable_document_root(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data)
 {
@@ -883,7 +926,9 @@ ngx_http_variable_document_root(ngx_http_request_t *r,
             return NGX_ERROR;
         }
 
-        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path) == NGX_ERROR) {
+        if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
+            == NGX_ERROR)
+        {
             return NGX_ERROR;
         }
 
diff --git a/src/mail/ngx_mail_proxy_module.c b/src/mail/ngx_mail_proxy_module.c
index 894c01d04..ae2fc4c38 100644
--- a/src/mail/ngx_mail_proxy_module.c
+++ b/src/mail/ngx_mail_proxy_module.c
@@ -866,9 +866,11 @@ ngx_mail_proxy_handler(ngx_event_t *ev)
 
     c->log->action = "proxying";
 
-    if ((s->connection->read->eof || s->proxy->upstream.connection->read->eof)
-        && s->buffer->pos == s->buffer->last
-        && s->proxy->buffer->pos == s->proxy->buffer->last)
+    if ((s->connection->read->eof && s->buffer->pos == s->buffer->last)
+        || (s->proxy->upstream.connection->read->eof
+            && s->proxy->buffer->pos == s->proxy->buffer->last)
+        || (s->connection->read->eof
+            && s->proxy->upstream.connection->read->eof))
     {
         action = c->log->action;
         c->log->action = NULL;
diff --git a/src/os/unix/ngx_aio_write_chain.c b/src/os/unix/ngx_aio_write_chain.c
index e3d663158..6a156e91b 100644
--- a/src/os/unix/ngx_aio_write_chain.c
+++ b/src/os/unix/ngx_aio_write_chain.c
@@ -21,7 +21,7 @@ ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
     /* the maximum limit size is the maximum size_t value - the page size */
 
-    if (limit == 0 || limit > NGX_MAX_SIZE_T_VALUE - ngx_pagesize) {
+    if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) {
         limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize;
     }
 
diff --git a/src/os/unix/ngx_freebsd_config.h b/src/os/unix/ngx_freebsd_config.h
index a4e973dc3..0bf4fd525 100644
--- a/src/os/unix/ngx_freebsd_config.h
+++ b/src/os/unix/ngx_freebsd_config.h
@@ -102,7 +102,7 @@ pid_t rfork_thread(int flags, void *stack, int (*func)(void *arg), void *arg);
 
 
 extern char **environ;
-extern char *malloc_options;
+extern char  *malloc_options;
 
 
 #endif /* _NGX_FREEBSD_CONFIG_H_INCLUDED_ */
diff --git a/src/os/unix/ngx_freebsd_sendfile_chain.c b/src/os/unix/ngx_freebsd_sendfile_chain.c
index 476eff332..c383fbeb5 100644
--- a/src/os/unix/ngx_freebsd_sendfile_chain.c
+++ b/src/os/unix/ngx_freebsd_sendfile_chain.c
@@ -72,7 +72,7 @@ ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
     /* the maximum limit size is the maximum size_t value - the page size */
 
-    if (limit == 0 || limit > NGX_MAX_SIZE_T_VALUE - ngx_pagesize) {
+    if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) {
         limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize;
     }
 
diff --git a/src/os/unix/ngx_linux_sendfile_chain.c b/src/os/unix/ngx_linux_sendfile_chain.c
index ab2a3cf1b..e102f27d6 100644
--- a/src/os/unix/ngx_linux_sendfile_chain.c
+++ b/src/os/unix/ngx_linux_sendfile_chain.c
@@ -62,7 +62,7 @@ ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
     /* the maximum limit size is 2G-1 - the page size */
 
-    if (limit == 0 || limit > NGX_SENDFILE_LIMIT - ngx_pagesize) {
+    if (limit == 0 || limit > (off_t) (NGX_SENDFILE_LIMIT - ngx_pagesize)) {
         limit = NGX_SENDFILE_LIMIT - ngx_pagesize;
     }
 
diff --git a/src/os/unix/ngx_solaris_sendfilev_chain.c b/src/os/unix/ngx_solaris_sendfilev_chain.c
index 04e33666a..2feae2fc8 100644
--- a/src/os/unix/ngx_solaris_sendfilev_chain.c
+++ b/src/os/unix/ngx_solaris_sendfilev_chain.c
@@ -67,7 +67,7 @@ ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
     /* the maximum limit size is the maximum size_t value - the page size */
 
-    if (limit == 0 || limit > NGX_MAX_SIZE_T_VALUE - ngx_pagesize) {
+    if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) {
         limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize;
     }
 
diff --git a/src/os/unix/ngx_writev_chain.c b/src/os/unix/ngx_writev_chain.c
index c8eb48269..b8754cda3 100644
--- a/src/os/unix/ngx_writev_chain.c
+++ b/src/os/unix/ngx_writev_chain.c
@@ -48,7 +48,7 @@ ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 
     /* the maximum limit size is the maximum size_t value - the page size */
 
-    if (limit == 0 || limit > NGX_MAX_SIZE_T_VALUE - ngx_pagesize) {
+    if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) {
         limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize;
     }