bugfix: ngx.sha1_bin() was always disabled with nginx 1.11.2+ due to incompatible changes in nginx 1.11.2+.

Author: agentzh

src/ngx_stream_lua_common.h

@@ -39,6 +39,13 @@
 #endif
 
 
+#ifndef NGX_HAVE_SHA1
+#   if (nginx_version >= 1011002)
+#       define NGX_HAVE_SHA1  1
+#   endif
+#endif
+
+
 #ifndef MD5_DIGEST_LENGTH
 #define MD5_DIGEST_LENGTH 16
 #endif