fix some for dubbo dynamic module

docs/modules/ngx_http_dubbo_module.md

@@ -79,13 +79,20 @@ This is a [QuickStart for Tengine Dubbo](https://github.com/apache/dubbo-samples
 Install
 =======
 
-* Build Tengine with this module from source:
+Build Tengine with this module from source:
 
 ```
 $ ./configure --add-module=./modules/mod_dubbo --add-module=./modules/ngx_multi_upstream_module --add-module=./modules/mod_config
 $ make && make install
 ```
 
+Dynamic module support
+
+* mod_dubbo: ```support``` build as a dynamic module
+* ngx_multi_upstream_module: ```no support``` build as a dynamic module
+* mod_config: ```support but no need``` build as a dynamic module
+
+
 Directive
 =========
 

docs/modules/ngx_http_dubbo_module_cn.md

@@ -76,13 +76,19 @@ QuickStart
 Install
 =======
 
-* 源码安装此模块：
+源码安装此模块：
 
 ```
 $ ./configure --add-module=./modules/mod_dubbo --add-module=./modules/ngx_multi_upstream_module --add-module=./modules/mod_config
 $ make && make install
 ```
 
+Dynamic module 支持
+* mod_dubbo: ```支持```编译成 dynamic module
+* ngx_multi_upstream_module: ```不支持```编译成 dynamic module
+* mod_config: ```支持但无需```编译成 dynamic module
+
+
 Directive
 =========
 

modules/mod_dubbo/config

@@ -1,7 +1,40 @@
-HTTP_MODULES="$HTTP_MODULES ngx_http_dubbo_module"
-CORE_DEPS="$CORE_DEPS $ngx_addon_dir/ngx_http_dubbo_module.h $ngx_addon_dir/ngx_dubbo.h"
-NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_dubbo_util.cpp $ngx_addon_dir/utils/objects.cc $ngx_addon_dir/utils/utils.cc $ngx_addon_dir/hessian2/hessian2_ext.cc $ngx_addon_dir/hessian2/hessian2_input.cc $ngx_addon_dir/hessian2/hessian2_output.cc $ngx_addon_dir/ngx_dubbo.c $ngx_addon_dir/ngx_http_dubbo_module.c"
-HTTP_INCS="$HTTP_INCS $ngx_addon_dir $ngx_addon_dir/utils $ngx_addon_dir/hessian $ngx_addon_dir/hessian2"
-have=T_NGX_DUBBO . auto/have
+ngx_addon_name=ngx_http_dubbo_module
+
+HTTP_DUBBO_DEPS=" \
+    $ngx_addon_dir/ngx_http_dubbo_module.h \
+    $ngx_addon_dir/ngx_dubbo.h"
+
+HTTP_DUBBO_SRCS=" \
+    $ngx_addon_dir/ngx_dubbo_util.cpp \
+    $ngx_addon_dir/utils/objects.cc \
+    $ngx_addon_dir/utils/utils.cc \
+    $ngx_addon_dir/hessian2/hessian2_ext.cc \
+    $ngx_addon_dir/hessian2/hessian2_input.cc \
+    $ngx_addon_dir/hessian2/hessian2_output.cc \
+    $ngx_addon_dir/ngx_dubbo.c \
+    $ngx_addon_dir/ngx_http_dubbo_module.c"
+
+ngx_module_incs=" \
+    $ngx_addon_dir \
+    $ngx_addon_dir/utils \
+    $ngx_addon_dir/hessian2"
 
 CORE_LIBS="$CORE_LIBS -lstdc++"
+
+if test -n "$ngx_module_link"; then
+    ngx_module_type=HTTP
+    ngx_module_name=$ngx_addon_name
+    ngx_module_deps="$HTTP_DUBBO_DEPS"
+    ngx_module_srcs="$HTTP_DUBBO_SRCS"
+
+    . auto/module
+else
+    HTTP_MODULES="$HTTP_MODULES $ngx_addon_name"
+    NGX_ADDON_DEPS="$NGX_ADDON_DEPS $HTTP_DUBBO_DEPS"
+    NGX_ADDON_SRCS="$NGX_ADDON_SRCS $HTTP_DUBBO_SRCS"
+
+    CORE_INCS="$CORE_INCS $ngx_module_incs"
+fi
+
+have=T_NGX_DUBBO . auto/have
+

modules/ngx_multi_upstream_module/config

@@ -1,3 +1,16 @@
+if [ "$ngx_module_link" = DYNAMIC ]; then
+    cat << END
+    $0: error: ngx_multi_upstream not support build as a dynamic module.
+END
+    exit 1
+fi
+
+ngx_addon_name=ngx_http_multi_upstream_module
+HTTP_MODULES="$HTTP_MODULES ngx_http_multi_upstream_module"
+CORE_DEPS="$CORE_DEPS $ngx_addon_dir/ngx_multi_upstream_module.h $ngx_addon_dir/ngx_http_multi_upstream_module.h $ngx_addon_dir/ngx_http_multi_upstream.c"
+NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_multi_upstream_module.c $ngx_addon_dir/ngx_multi_upstream_module.c"
+HTTP_INCS="$HTTP_INCS $ngx_addon_dir"
+
 if [ $STREAM != NO ]; then
     ngx_module_name=ngx_stream_multi_upstream_module
     ngx_module_type=STREAM
@@ -5,14 +18,14 @@ if [ $STREAM != NO ]; then
     ngx_module_incs=$ngx_addon_dir 
     ngx_module_deps=$ngx_addon_dir/ngx_stream_multi_upstream_module.h
     ngx_module_srcs=$ngx_addon_dir/ngx_stream_multi_upstream_module.c
-    
+
+    if [ $STREAM = DYNAMIC ]; then
+        ngx_module_link=DYNAMIC
+    else
+        ngx_module_link=ADDON
+    fi
+
     . auto/module
 fi
 
-ngx_addon_name=ngx_http_multi_upstream_module
-HTTP_MODULES="$HTTP_MODULES ngx_http_multi_upstream_module"
-CORE_DEPS="$CORE_DEPS $ngx_addon_dir/ngx_multi_upstream_module.h $ngx_addon_dir/ngx_http_multi_upstream_module.h $ngx_addon_dir/ngx_http_multi_upstream.c"
-NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_multi_upstream_module.c $ngx_addon_dir/ngx_multi_upstream_module.c"
-HTTP_INCS="$HTTP_INCS $ngx_addon_dir"
-
 have=T_NGX_MULTI_UPSTREAM . auto/have