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-rw-r--r--libcxx/include/stddef.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/libcxx/include/stddef.h b/libcxx/include/stddef.h
index 19e344f2a000..f1725db06212 100644
--- a/libcxx/include/stddef.h
+++ b/libcxx/include/stddef.h
@@ -42,7 +42,9 @@ Types:
# pragma GCC system_header
#endif
-#include_next <stddef.h>
+# if __has_include_next(<stddef.h>)
+# include_next <stddef.h>
+# endif
#ifdef __cplusplus
typedef decltype(nullptr) nullptr_t;