From d0894468650ef964248b5d879d222db4b367c852 Mon Sep 17 00:00:00 2001
From: Yoshio Soma <yoshio.soma@goinc.jp>
Date: Mon, 23 Oct 2023 14:06:18 +0900
Subject: [PATCH] Use find_package for pthread dependency.

---
 contrib/CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
index e2932f8..a5909e8 100644
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -13,6 +13,9 @@ include(GNUInstallDirs)
 # Set C++11 as default standard
 set(CMAKE_CXX_STANDARD 11)
 
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+
 get_filename_component(gemmlowp_src ${gemmlowp_SOURCE_DIR} PATH)
 
 if(WIN32)
@@ -24,7 +27,7 @@ if(WIN32)
     add_definitions(-DGEMMLOWP_ALLOW_INLINE_ASM)
   endif()
 else()
-  set(EXTERNAL_LIBRARIES "pthread")
+  set(EXTERNAL_LIBRARIES Threads::Threads)
 endif()
 
 # Glob header files