Merge of /httpd/httpd/trunk:r1913023

* modules/http2: Make WebSockets support conditional also
 on APR 1.7.x since apr_encode.h is required. Restore
 #include "apr_encode.h" removed in previous commit.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1913024 13f79535-47bb-0310-9956-ffa450edef68

modules/http2/h2.h

@@ -41,7 +41,9 @@ struct h2_stream;
 #define H2_USE_POLLFD_FROM_CONN 0
 #endif
 
-#if H2_USE_PIPES && defined(NGHTTP2_VERSION_NUM) && NGHTTP2_VERSION_NUM >= 0x012200
+/* WebSockets support requires apr 1.7.0 for apr_encode.h, plus the
+ * WebSockets features of nghttp2 1.34.0 and later. */
+#if H2_USE_PIPES && defined(NGHTTP2_VERSION_NUM) && NGHTTP2_VERSION_NUM >= 0x012200 && APR_VERSION_AT_LEAST(1,7,0)
 #define H2_USE_WEBSOCKETS       1
 #else
 #define H2_USE_WEBSOCKETS       0

modules/http2/h2_ws.c

@@ -45,6 +45,8 @@
 
 #if H2_USE_WEBSOCKETS
 
+#include "apr_encode.h" /* H2_USE_WEBSOCKETS is conditional on APR 1.6+ */
+
 static ap_filter_rec_t *c2_ws_out_filter_handle;
 
 struct ws_filter_ctx {