Support UWP/arm64 target

* src/atomic_ops.h [_MSC_VER && _M_ARM64]: Include msftc/x86_64.h.

diff --git a/src/atomic_ops.h b/src/atomic_ops.h
index 7a1a8b723d15b4f476e1aff130ca976168abd0a6..bd73800efed5989ef476515ff7ebdb3ba02892f5 100644 (file)
--- a/src/atomic_ops.h
+++ b/src/atomic_ops.h
@@ -336,7 +336,7 @@
 
 #if defined(_MSC_VER) || defined(__DMC__) || defined(__BORLANDC__) \
         || (defined(__WATCOMC__) && defined(__NT__))
-# if defined(_AMD64_) || defined(_M_X64)
+# if defined(_AMD64_) || defined(_M_X64) || defined(_M_ARM64)
 #   include "atomic_ops/sysdeps/msftc/x86_64.h"
 # elif defined(_M_IX86) || defined(x86)
 #   include "atomic_ops/sysdeps/msftc/x86.h"