[CMake] [builtins] Only include the atomic builtins if(APPLE).

There are lingering issues building the atomic builtins with various versions of gcc. To unblock people we can only include them on Apple platforms where they are more tested.

llvm-svn: 248386

1 files changed, 11 insertions, 6 deletions

diff --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
index 03e3a68425a..6ea3850280f 100644
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -17,12 +17,6 @@ set(GENERIC_SOURCES
   ashlti3.c
   ashrdi3.c
   ashrti3.c
-  atomic_flag_clear.c
-  atomic_flag_clear_explicit.c
-  atomic_flag_test_and_set.c
-  atomic_flag_test_and_set_explicit.c
-  atomic_signal_fence.c
-  atomic_thread_fence.c
   # FIXME: atomic.c may only be compiled if host compiler understands _Atomic
   # atomic.c
   clear_cache.c
@@ -145,6 +139,17 @@ set(GENERIC_SOURCES
   umodsi3.c
   umodti3.c)
 
+if(APPLE)
+  set(GENERIC_SOURCES
+    ${GENERIC_SOURCES}
+    atomic_flag_clear.c
+    atomic_flag_clear_explicit.c
+    atomic_flag_test_and_set.c
+    atomic_flag_test_and_set_explicit.c
+    atomic_signal_fence.c
+    atomic_thread_fence.c)
+endif()
+
 if(NOT WIN32)
   set(GENERIC_SOURCES
       ${GENERIC_SOURCES}