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-rw-r--r--src/libSystem/SystemKit/Macros.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libSystem/SystemKit/Macros.h b/src/libSystem/SystemKit/Macros.h
index 37150b01..14918c41 100644
--- a/src/libSystem/SystemKit/Macros.h
+++ b/src/libSystem/SystemKit/Macros.h
@@ -15,6 +15,9 @@
#define ATTRIBUTE(X) __attribute__((X))
+#define __THREAD_SAFE ATTRIBUTE(thread_safe)
+#define __THREAD_UNSAFE
+
#define IMPORT_CXX extern "C++"
#define IMPORT_C extern "C"