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-rw-r--r--lib/stdalign.in.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/stdalign.in.h b/lib/stdalign.in.h
index 32ae4c533e..dd25f0413d 100644
--- a/lib/stdalign.in.h
+++ b/lib/stdalign.in.h
@@ -95,7 +95,10 @@
#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112
# if defined __cplusplus && 201103 <= __cplusplus
# define _Alignas(a) alignas (a)
-# elif (__GNUC__ || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
+# elif ((defined __APPLE__ && defined __MACH__ \
+ ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \
+ : __GNUC__) \
+ || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
|| __ICC || 0x5110 <= __SUNPRO_C)
# define _Alignas(a) __attribute__ ((__aligned__ (a)))
# elif 1300 <= _MSC_VER