From fcf7322d81172fc8854224c1daea367c9509210a Mon Sep 17 00:00:00 2001
From: Fangjun Kuang <csukuangfj@gmail.com>
Date: Sat, 2 Dec 2023 14:32:19 +0800
Subject: [PATCH] Add missing headers

---
 sherpa-onnx/csrc/offline-tts.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sherpa-onnx/csrc/offline-tts.h b/sherpa-onnx/csrc/offline-tts.h
index 4db2aeb52..bbc9013c2 100644
--- a/sherpa-onnx/csrc/offline-tts.h
+++ b/sherpa-onnx/csrc/offline-tts.h
@@ -5,6 +5,7 @@
 #define SHERPA_ONNX_CSRC_OFFLINE_TTS_H_
 
 #include <cstdint>
+#include <functional>
 #include <memory>
 #include <string>
 #include <vector>