update feature

AIO Thread support old version 1.10

Author: Taymindis

config

@@ -54,18 +54,37 @@ fi
 # have=NGX_HTTP_C_FUN_SSL . auto/have
 # fi
 
+# with dlfcn feature 
+ngx_feature="ngx_http_c_func_compatibility"
+ngx_feature_name="NGX_HAVE_HTTP_C_FUNC_COMPATIBLITY"
+ngx_feature_run=no
+ngx_feature_incs="#include <dlfcn.h>"
+ngx_feature_path=
+ngx_feature_libs="-ldl"
+# ngx_feature_exit_if_not_found=yes
+ngx_feature_test="void * pt = dlopen(NULL, RTLD_LAZY | RTLD_NOW);"
+. auto/feature
+
+if [ $ngx_found != yes ]; then
+echo "nginx version not support this module, please make sure nginx version is 1.10 and above"
+echo
+exit 1
+fi
+
 
 if test -n "$ngx_module_link"; then
     ngx_module_type=HTTP
     ngx_module_name=$ngx_addon_name
     ngx_module_deps="$HTTP_C_FUNC_DEPS"
     ngx_module_srcs="$HTTP_C_FUNC_SRCS"
     #ngx_module_libs=" -rdynamic -ldl -lpthread -lpcre -Wl,-E"
-    ngx_module_libs="-ldl -lm -lpthread -lpcre"
+    # ngx_module_libs="-ldl"
     #ngx_module_libs="-lunwind-coredump -lunwind-generic -lunwind-ptrace -lunwind"
 
     . auto/module
 else
+  # CORE_INCS="$CORE_INCS $ngx_feature_path"
+  # CORE_LIBS="$CORE_LIBS -ldl"
   HTTP_MODULES="$HTTP_MODULES ngx_http_c_func_module"
   NGX_ADDON_SRCS="$NGX_ADDON_SRCS $HTTP_C_FUNC_SRCS"
   NGX_ADDON_DEPS="$NGX_ADDON_DEPS $HTTP_C_FUNC_DEPS"

src/ngx_http_c_func_module.c

@@ -554,6 +554,11 @@ ngx_http_c_func_post_configuration(ngx_conf_t *cf) {
 static ngx_int_t
 ngx_http_c_func_pre_configuration(ngx_conf_t *cf) {
 
+#if (nginx_version < 1010003)
+    ngx_conf_log_error(NGX_LOG_EMERG, cf,  0, "%s", "nginx-c-function is not support nginx version below 1.10");
+    return NGX_ERROR;
+#endif
+
 #ifndef ngx_http_c_func_module_version_11
     ngx_conf_log_error(NGX_LOG_EMERG, cf,  0, "%s", "the latest ngx_http_c_func_module.h not found in the c header path, \
         please copy latest ngx_http_c_func_module.h to your /usr/include or /usr/local/include or relavent header search path \
@@ -1110,7 +1115,7 @@ ngx_http_c_func_precontent_handler(ngx_http_request_t *r) {
         return NGX_DECLINED;
     }
     ngx_http_c_func_output_filter(r);
-    
+
     return NGX_DONE;
 } /* ngx_http_c_func_precontent_handler */