diff --git a/auto/configure b/auto/configure
index e8929b8..617d992 100755
--- a/auto/configure
+++ b/auto/configure
@@ -58,6 +58,7 @@
     . auto/unix
 fi
 
+. auto/threads
 . auto/modules
 . auto/lib/conf
 
diff --git a/auto/modules b/auto/modules
index 7885967..5a56957 100644
--- a/auto/modules
+++ b/auto/modules
@@ -432,6 +432,12 @@
 modules="$CORE_MODULES $EVENT_MODULES"
 
 
+# thread pool module should be initialized after events
+if [ $USE_THREADS = YES ]; then
+    modules="$modules $THREAD_POOL_MODULE"
+fi
+
+
 if [ $USE_OPENSSL = YES ]; then
     modules="$modules $OPENSSL_MODULE"
     CORE_DEPS="$CORE_DEPS $OPENSSL_DEPS"
diff --git a/auto/options b/auto/options
index 02affbd..763871f 100644
--- a/auto/options
+++ b/auto/options
@@ -190,6 +190,8 @@
         --without-poll_module)           EVENT_POLL=NONE            ;;
         --with-aio_module)               EVENT_AIO=YES              ;;
 
+        --with-threads)                  USE_THREADS=YES            ;;
+
         --with-file-aio)                 NGX_FILE_AIO=YES           ;;
         --with-ipv6)                     NGX_IPV6=YES               ;;
 
@@ -351,6 +353,8 @@
   --with-poll_module                 enable poll module
   --without-poll_module              disable poll module
 
+  --with-threads                     enable thread pool support
+
   --with-file-aio                    enable file AIO support
   --with-ipv6                        enable IPv6 support
 
diff --git a/auto/sources b/auto/sources
index 1287782..e7f1058 100644
--- a/auto/sources
+++ b/auto/sources
@@ -193,6 +193,13 @@
 
 POSIX_DEPS=src/os/unix/ngx_posix_config.h
 
+THREAD_POOL_MODULE=ngx_thread_pool_module
+THREAD_POOL_DEPS=src/core/ngx_thread_pool.h
+THREAD_POOL_SRCS="src/core/ngx_thread_pool.c
+                  src/os/unix/ngx_thread_cond.c
+                  src/os/unix/ngx_thread_mutex.c
+                  src/os/unix/ngx_thread_id.c"
+
 FREEBSD_DEPS="src/os/unix/ngx_freebsd_config.h src/os/unix/ngx_freebsd.h"
 FREEBSD_SRCS=src/os/unix/ngx_freebsd_init.c
 FREEBSD_SENDFILE_SRCS=src/os/unix/ngx_freebsd_sendfile_chain.c
diff --git a/auto/summary b/auto/summary
index b200906..1be975d 100644
--- a/auto/summary
+++ b/auto/summary
@@ -7,6 +7,10 @@
 echo "Configuration summary"
 
 
+if [ $USE_THREADS = YES ]; then
+    echo "  + using threads"
+fi
+
 if [ $USE_PCRE = DISABLED ]; then
     echo "  + PCRE library is disabled"
 
diff --git a/auto/threads b/auto/threads
new file mode 100644
index 0000000..381f07a
--- /dev/null
+++ b/auto/threads
@@ -0,0 +1,20 @@
+
+# Copyright (C) Nginx, Inc.
+
+
+if [ $USE_THREADS = YES ]; then
+
+    if [ "$NGX_PLATFORM" = win32 ]; then
+        cat << END
+
+$0: --with-threads is not supported on Windows
+
+END
+        exit 1
+    fi
+
+    have=NGX_THREADS . auto/have
+    CORE_DEPS="$CORE_DEPS $THREAD_POOL_DEPS"
+    CORE_SRCS="$CORE_SRCS $THREAD_POOL_SRCS"
+    CORE_LIBS="$CORE_LIBS -lpthread"
+fi