diff options
Diffstat (limited to 'm4/stdalign.m4')
| -rw-r--r-- | m4/stdalign.m4 | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/m4/stdalign.m4 b/m4/stdalign.m4 index 9efafe5c5..49980cd63 100644 --- a/m4/stdalign.m4 +++ b/m4/stdalign.m4 @@ -1,6 +1,6 @@ # Check for stdalign.h that conforms to C11. -dnl Copyright 2011-2014 Free Software Foundation, Inc. +dnl Copyright 2011-2016 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. @@ -32,8 +32,12 @@ AC_DEFUN([gl_STDALIGN_H], /* Test _Alignas only on platforms where gnulib can help. */ #if \ ((defined __cplusplus && 201103 <= __cplusplus) \ - || __GNUC__ || __IBMC__ || __IBMCPP__ || __ICC \ - || 0x5110 <= __SUNPRO_C || 1300 <= _MSC_VER) + || (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]; |