From 57eadc7a93814c0d348b60ecaf8a9a0f44a19671 Mon Sep 17 00:00:00 2001
From: Paul Ferrand <paulfd@outlook.fr>
Date: Sat, 7 Mar 2020 14:18:47 +0100
Subject: [PATCH] Global definition of LIBATOMIC_FOUND for arm benchmarks

---
 benchmarks/CMakeLists.txt | 5 ++++-
 cmake/SfizzConfig.cmake   | 5 +++++
 src/CMakeLists.txt        | 8 ++------
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/benchmarks/CMakeLists.txt b/benchmarks/CMakeLists.txt
index 8931eca6..0aa090ae 100644
--- a/benchmarks/CMakeLists.txt
+++ b/benchmarks/CMakeLists.txt
@@ -27,7 +27,10 @@ macro(sfizz_add_benchmark TARGET)
 	target_link_libraries("${TARGET}"
 		PRIVATE absl::span absl::algorithm
 		PRIVATE benchmark::benchmark benchmark::benchmark_main
-		PRIVATE bm_simd bm_ftz)
+        PRIVATE bm_simd bm_ftz)
+    if (LIBATOMIC_FOUND)
+        target_link_libraries ("${TARGET}" PRIVATE atomic)
+    endif()
 	target_include_directories("${TARGET}" PRIVATE ../src/sfizz ../src/external)
 endmacro()
 
diff --git a/cmake/SfizzConfig.cmake b/cmake/SfizzConfig.cmake
index 19215e3a..0f5fc728 100644
--- a/cmake/SfizzConfig.cmake
+++ b/cmake/SfizzConfig.cmake
@@ -66,6 +66,11 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT ANDROID)
     endif()
 endif()
 
+include (CheckLibraryExists)
+if (UNIX AND NOT APPLE)
+    check_library_exists(atomic __atomic_load "" LIBATOMIC_FOUND)
+endif()
+
 # Don't show build information when building a different project
 function (show_build_info_if_needed)
     if (CMAKE_PROJECT_NAME STREQUAL "sfizz")
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index fcaeca79..2475fd65 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,5 +1,4 @@
 include (GNUInstallDirs)
-include (CheckLibraryExists)
 
 set (SFIZZ_SOURCES
     sfizz/Synth.cpp
@@ -55,11 +54,8 @@ endif()
 
 add_library (sfizz::parser ALIAS sfizz_parser)
 add_library (sfizz::sfizz ALIAS sfizz_static)
-if (UNIX AND NOT APPLE)
-    check_library_exists(atomic __atomic_load "" LIBATOMIC_FOUND)
-    if (LIBATOMIC_FOUND)
-        target_link_libraries (sfizz_static PRIVATE atomic)
-    endif()
+if (LIBATOMIC_FOUND)
+    target_link_libraries (sfizz_static PRIVATE atomic)
 endif()
 
 # Shared library and installation target