Fix the windows build.

diff --git a/mono/utils/atomic.h b/mono/utils/atomic.h
index 5e7d3ac0e947e4fb317f6e6298795d54454e4660..b9927bf5ae3dd1c6ed7e573bb3ce357361314da3 100644 (file)
--- a/mono/utils/atomic.h
+++ b/mono/utils/atomic.h
@@ -28,6 +28,7 @@
 #if defined(__WIN32__) || defined(_WIN32)
 
 #include <windows.h>
+#define HAS_64BITS_ATOMICS 1
 
 /* Prefer GCC atomic ops if the target supports it (see configure.in). */
 #elif defined(USE_GCC_ATOMIC_OPS)