From 98265bd6b743a542e448bbfdcc61c995cb69bbe6 Mon Sep 17 00:00:00 2001
From: Mattias Ellert <mattias.ellert@physics.uu.se>
Date: Thu, 20 Oct 2022 09:02:48 +0200
Subject: [PATCH] Check all sizes (8, 16, 32, 64) in <atomic> check Check
 operator++ in <atomic> check Add ${ATOMIC_LIBRARY} to libXrdServer
 dependencies

---
 cmake/XRootDSystemCheck.cmake | 12 +++++-------
 src/XrdServer.cmake           |  1 +
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/cmake/XRootDSystemCheck.cmake b/cmake/XRootDSystemCheck.cmake
index 52f9ba641..8af868863 100644
--- a/cmake/XRootDSystemCheck.cmake
+++ b/cmake/XRootDSystemCheck.cmake
@@ -149,13 +149,11 @@ function(check_working_cxx_atomics varname)
 #include <atomic>
 #include <cstdint>
 int main() {
-   std::atomic<int> a1(0);
-   int a1val = a1.load();
-   (void)a1val;
-   std::atomic<uint64_t> a2(0);
-   uint64_t a2val = a2.load(std::memory_order_relaxed);
-   (void)a2val;
-   return 0;
+   std::atomic<uint8_t> a1;
+   std::atomic<uint16_t> a2;
+   std::atomic<uint32_t> a3;
+   std::atomic<uint64_t> a4;
+   return a1++ + a2++ + a3++ + a4++;
 }
 " ${varname})
   set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
diff --git a/src/XrdServer.cmake b/src/XrdServer.cmake
index 4006976d5..d5d2e4533 100644
--- a/src/XrdServer.cmake
+++ b/src/XrdServer.cmake
@@ -191,6 +191,7 @@ target_link_libraries(
   XrdUtils
   ${CMAKE_DL_LIBS}
   ${CMAKE_THREAD_LIBS_INIT}
+  ${ATOMIC_LIBRARY}
   ${EXTRA_LIBS}
   ${SOCKET_LIBRARY} )
 
-- 
2.37.3