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-rw-r--r--include/stddef.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/stddef.h b/include/stddef.h
index 8841bbea29786..faf8552d8ce78 100644
--- a/include/stddef.h
+++ b/include/stddef.h
@@ -53,7 +53,8 @@ using std::nullptr_t;
}
// Re-use the compiler's <stddef.h> max_align_t where possible.
-#if !defined(__CLANG_MAX_ALIGN_T_DEFINED) && !defined(_GCC_MAX_ALIGN_T)
+#if !defined(__CLANG_MAX_ALIGN_T_DEFINED) && !defined(_GCC_MAX_ALIGN_T) && \
+ !defined(__DEFINED_max_align_t)
typedef long double max_align_t;
#endif