From 2deec335f642285235bb1b444a0877947a0501b9 Mon Sep 17 00:00:00 2001
From: Bernard Cafarelli <bernard.cafarelli@gmail.com>
Date: Thu, 3 Sep 2020 18:22:27 +0200
Subject: [PATCH] Add pthreads to link libraries, not link flags

This fixes linking errors with --as-needed like:
ld: libobjc.so.4.6: undefined reference to `pthread_mutexattr_destroy'

Fixes #180
---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d7c33aa..8ac86a1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -353,7 +353,7 @@ endif()
 # threading implementation (we do for everything except thread-local storage)
 set(CMAKE_THREAD_PREFER_PTHREAD)
 include(FindThreads)
-set(objc_LINK_FLAGS "${objc_LINK_FLAGS} ${CMAKE_THREAD_LIBS_INIT}")
+target_link_libraries(objc Threads::Threads)