From e3dd9cc0a9de308f37a3d33156d48b58304ae956 Mon Sep 17 00:00:00 2001
From: "Wang, Han2" <han2.wang@intel.com>
Date: Thu, 3 Oct 2024 20:38:03 -0700
Subject: [PATCH] fixing build error: undefined symbol: void
 boost::hash_combine

Signed-off-by: Wang, Han2 <han2.wang@intel.com>
---
 ir/expression.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ir/expression.cpp b/ir/expression.cpp
index 0ad9032e2e..3adc5eee31 100644
--- a/ir/expression.cpp
+++ b/ir/expression.cpp
@@ -16,6 +16,8 @@ limitations under the License.
 
 #include <ostream>
 
+#include <boost/functional/hash.hpp>
+
 #include "absl/container/flat_hash_map.h"
 #include "ir/id.h"
 #include "ir/indexed_vector.h"