Fix duplicate symbol issue

Author: fantix

nginx/ngx_python_module.c

@@ -1,4 +1,9 @@
-#include "ngx_python_module.h"
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+#include <Python.h>
+#include "nginx.h"
+
 
 static ngx_int_t ngx_python_init_process(ngx_cycle_t *cycle);
 static void ngx_python_exit_process(ngx_cycle_t *cycle);

nginx/ngx_python_module.h

@@ -1,7 +1 @@
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_http.h>
-#include <Python.h>
-#include "nginx.h"
-
-ngx_module_t ngx_python_module;
+extern ngx_module_t ngx_python_module;