Nginx Nginx ngx_cache_purge compatibility Fix nginx-1.11.6+

As Centminmod is using ngx_cache_purge.
There seems to be a problem with Nginx 1.11.6 and above in association with
Nginx ngx_cache_purge.
This patch repairs the compatibility issues.

Fix compatibility with nginx-1.11.6+ by psulowicz · Pull Request #51 · FRiCKLE/ngx_cache_purge · GitHub

Code:

From c7345057ad5429617fc0823e92e3fa8043840cef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Su=C5=82owicz=20Pawe=C5=82?= <Pawel.Sulowicz@grupaonet.pl>
Date: Thu, 2 Feb 2017 09:39:37 +0100
Subject: [PATCH] Fix compatibility with nginx-1.11.6+

---
 ngx_cache_purge_module.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ngx_cache_purge_module.c b/ngx_cache_purge_module.c
index 62d3818..fd1ebde 100644
--- a/ngx_cache_purge_module.c
+++ b/ngx_cache_purge_module.c
@@ -492,7 +492,11 @@ typedef struct {
     ngx_str_t                      body_source;
 #  endif /* nginx_version < 1007008 */
 
+#  if (nginx_version >= 1011006)
+    ngx_http_complex_value_t      *method;
+#  else
     ngx_str_t                      method;
+#  endif /* nginx_version >= 1011006 */
     ngx_str_t                      location;
     ngx_str_t                      url;