From 54c312e692ac6c30a7188d27f42d7954a25a47cd Mon Sep 17 00:00:00 2001
From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Tue, 8 Sep 2020 20:12:17 -0700
Subject: [PATCH] use api.prefix to set HTML parser's prefix

Related to #1806.
---
 lib/common/htmlparse.y | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/common/htmlparse.y b/lib/common/htmlparse.y
index 0e07cf6a1..715aa91f6 100644
--- a/lib/common/htmlparse.y
+++ b/lib/common/htmlparse.y
@@ -13,6 +13,12 @@
 
 %require "3.0"
 
+  /* By default, Bison emits a parser using symbols prefixed with "yy". Graphviz
+   * contains multiple Bison-generated parsers, so we alter this prefix to avoid
+   * symbol clashes.
+   */
+%define api.prefix {html}
+
 %{
 
 #include <common/render.h>
-- 
2.40.0