From: Charles Giessen <charles@lunarg.com>
Date: Wed, 3 Nov 2021 20:28:03 +0000 (-0600)
Subject: Use the CMake Threads package
X-Git-Tag: upstream/1.3.208~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c3b4b13a8eff80bea67b2536128ce1a41e4cd9ad;p=platform%2Fupstream%2FVulkan-Loader.git

Use the CMake Threads package

Instead of manually linking to pthreads, use find_package(Threads) to get the
platform specific name for the threading library and link to it. Use the
THREADS_PREFER_PTHREAD_FLAG to ensure we prefer pthreads before anything
else. Note that this commit is a part of a series of commits and not
intended to work by itself.
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bfe08902..e3c7c94c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -87,6 +87,9 @@ endif()
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 find_package(PythonInterp 3 QUIET)
 
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+
 option(BUILD_TESTS "Build Tests" OFF)
 
 if(BUILD_TESTS)
diff --git a/loader/CMakeLists.txt b/loader/CMakeLists.txt
index acea3da5..f867a9a1 100644
--- a/loader/CMakeLists.txt
+++ b/loader/CMakeLists.txt
@@ -289,7 +289,7 @@ else()
                           VERSION ${LOADER_GENERATED_HEADER_VERSION})
     target_link_libraries(vulkan ${CMAKE_DL_LIBS} m)
     if (NOT ANDROID)
-        target_link_libraries(vulkan pthread)
+        target_link_libraries(vulkan Threads::Threads)
     endif()
     # Used to make alloca() and secure_getenv() available
     target_compile_definitions(vulkan PRIVATE _GNU_SOURCE)