# Check for stdalign.h that conforms to C11.
-dnl Copyright 2011-2013 Free Software Foundation, Inc.
+dnl Copyright 2011-2015 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
/* Test _Alignas only on platforms where gnulib can help. */
#if \
- (__GNUC__ || __IBMC__ || __IBMCPP__ \
- || 0x5110 <= __SUNPRO_C || 1300 <= _MSC_VER)
+ ((defined __cplusplus && 201103 <= __cplusplus) \
+ || (defined __APPLE__ && defined __MACH__ \
+ ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \
+ : __GNUC__) \
+ || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
+ || __ICC || 0x5110 <= __SUNPRO_C \
+ || 1300 <= _MSC_VER)
struct alignas_test { char c; char alignas (8) alignas_8; };
char test_alignas[offsetof (struct alignas_test, alignas_8) == 8
? 1 : -1];