From 6c5441c8ff53ba68bfa5ba97d392db5514e02233 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Mon, 19 Feb 2024 16:54:29 +0300
Subject: [PATCH] Add ATOMICS_LIBRARY_FLAGS.

---
 CMake/FindAtomics.cmake | 7 +++++--
 CMakeLists.txt          | 4 ++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/CMake/FindAtomics.cmake b/CMake/FindAtomics.cmake
index d0916321d..6cafdcde6 100644
--- a/CMake/FindAtomics.cmake
+++ b/CMake/FindAtomics.cmake
@@ -7,8 +7,9 @@
 # riscv64 specific:
 # * https://lists.debian.org/debian-riscv/2022/01/msg00009.html
 #
-# ATOMICS_FOUND        - system has c++ atomics
-# ATOMICS_LIBRARIES    - libraries needed to use c++ atomics
+# ATOMICS_FOUND         - system has c++ atomics
+# ATOMICS_LIBRARIES     - libraries needed to use c++ atomics
+# ATOMICS_LIBRARY_FLAGS - flags required to link with c++ atomics library
 
 include(CheckCXXSourceCompiles)
 
@@ -34,6 +35,7 @@ check_cxx_source_compiles("${atomic_code}" ATOMICS_LOCK_FREE_INSTRUCTIONS)
 if (ATOMICS_LOCK_FREE_INSTRUCTIONS)
   set(ATOMICS_FOUND TRUE)
   set(ATOMICS_LIBRARIES)
+  set(ATOMICS_LIBRARY_FLAGS)
 else()
   set(CMAKE_REQUIRED_LIBRARIES "-latomic")
   check_cxx_source_compiles("${atomic_code}" ATOMICS_IN_LIBRARY)
@@ -43,6 +45,7 @@ else()
     include(FindPackageHandleStandardArgs)
     find_package_handle_standard_args(Atomics DEFAULT_MSG ATOMICS_LIBRARY)
     set(ATOMICS_LIBRARIES ${ATOMICS_LIBRARY})
+    set(ATOMICS_LIBRARY_FLAGS "-latomic")
     unset(ATOMICS_LIBRARY)
   else()
     if (Atomics_FIND_REQUIRED)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b4c5ccc31..51cd1c7ea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -130,8 +130,8 @@ if (THREADS_HAVE_PTHREAD_ARG)
 endif()
 
 find_package(Atomics REQUIRED)
-if (ATOMICS_LIBRARIES)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ATOMICS_LIBRARIES}")
+if (ATOMICS_LIBRARY_FLAGS)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ATOMICS_LIBRARY_FLAGS}")
 endif()
 
 include(TdSetUpCompiler)