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-rw-r--r--Source/JavaScriptCore/wtf/NullPtr.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/Source/JavaScriptCore/wtf/NullPtr.h b/Source/JavaScriptCore/wtf/NullPtr.h
index b65f8fab5..2d0919ca6 100644
--- a/Source/JavaScriptCore/wtf/NullPtr.h
+++ b/Source/JavaScriptCore/wtf/NullPtr.h
@@ -31,7 +31,9 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// nullptr_t type and nullptr object. They are defined in the same namespaces they
// would be in compiler and library that had the support.
-#if COMPILER_SUPPORTS(CXX_NULLPTR)
+#include <ciso646>
+
+#if COMPILER_SUPPORTS(CXX_NULLPTR) || defined(_LIBCPP_VERSION)
#include <cstddef>