From 92962317a06d83b961ed2e7576eafb79a4467ff4 Mon Sep 17 00:00:00 2001
From: xige-16 <xige2016@gmail.com>
Date: Tue, 16 Jul 2024 12:47:42 +0800
Subject: [PATCH] Replace gettid() with syscall(SYS_gettid) (#697)

Signed-off-by: xige-16 <xige2016@gmail.com>
---
 include/knowhere/comp/thread_pool.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/knowhere/comp/thread_pool.h b/include/knowhere/comp/thread_pool.h
index 29d1eb629..b26b5706b 100644
--- a/include/knowhere/comp/thread_pool.h
+++ b/include/knowhere/comp/thread_pool.h
@@ -12,7 +12,14 @@
 #pragma once
 
 #include <omp.h>
+
+#ifdef __linux__
 #include <sys/resource.h>
+#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 30
+#include <sys/syscall.h>
+#define gettid() syscall(SYS_gettid)
+#endif
+#endif
 
 #include <cerrno>
 #include <cstring>