diff options
| author | Andy Wingo <wingo@pobox.com> | 2015-10-22 13:10:30 +0000 |
|---|---|---|
| committer | Andy Wingo <wingo@pobox.com> | 2015-10-22 13:34:00 +0000 |
| commit | 2d4da30fdefbcdb065d4b1f48f2a77d06f69e3c3 (patch) | |
| tree | 3f50180297054aeecd0b478e5f7260366b304c71 /lib/stdalign.in.h | |
| parent | 139ef2d17c98488fc8e5444bf642699f2ad09e08 (diff) | |
| download | guile-2d4da30fdefbcdb065d4b1f48f2a77d06f69e3c3.tar.gz | |
Update Gnulib to v0.1-603-g1d16a7b
Diffstat (limited to 'lib/stdalign.in.h')
| -rw-r--r-- | lib/stdalign.in.h | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/lib/stdalign.in.h b/lib/stdalign.in.h index 29861efe1..31bb7bce0 100644 --- a/lib/stdalign.in.h +++ b/lib/stdalign.in.h @@ -1,6 +1,6 @@ /* A substitute for ISO C11 <stdalign.h>. - Copyright 2011-2014 Free Software Foundation, Inc. + Copyright 2011-2015 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -52,7 +52,10 @@ #undef _Alignas #undef _Alignof -#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 +/* GCC releases before GCC 4.9 had a bug in _Alignof. See GCC bug 52023 + <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. */ +#if (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 \ + || (defined __GNUC__ && __GNUC__ < 4 + (__GNUC_MINOR__ < 9))) # ifdef __cplusplus # if 201103 <= __cplusplus # define _Alignof(type) alignof (type) @@ -64,7 +67,9 @@ # define _Alignof(type) offsetof (struct { char __a; type __b; }, __b) # endif #endif -#define alignof _Alignof +#if ! (defined __cplusplus && 201103 <= __cplusplus) +# define alignof _Alignof +#endif #define __alignof_is_defined 1 /* alignas (A), also known as _Alignas (A), aligns a variable or type @@ -95,15 +100,21 @@ #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 # define _Alignas(a) __declspec (align (a)) # endif #endif -#if defined _Alignas || (defined __STDC_VERSION && 201112 <= __STDC_VERSION__) +#if ((defined _Alignas && ! (defined __cplusplus && 201103 <= __cplusplus)) \ + || (defined __STDC_VERSION && 201112 <= __STDC_VERSION__)) # define alignas _Alignas +#endif +#if defined alignas || (defined __cplusplus && 201103 <= __cplusplus) # define __alignas_is_defined 1 #endif |