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author | Andy Wingo <wingo@pobox.com> | 2021-01-20 21:52:54 +0100 |
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committer | Andy Wingo <wingo@pobox.com> | 2021-01-20 23:03:56 +0100 |
commit | a91b95cca2d397c84f8b9bbd602d40209a7092ce (patch) | |
tree | 2c286a291f5a2b812d6e216be10936f2709d59cf /lib/alignof.h | |
parent | 758b31994cff582c7e8785b4cc2240dbf3573837 (diff) | |
download | guile-a91b95cca2d397c84f8b9bbd602d40209a7092ce.tar.gz |
Update Gnulib to v0.1-4379-g2ef5a9b4b
Also bump required autoconf version to 2.64, as required by Gnulib.
Diffstat (limited to 'lib/alignof.h')
-rw-r--r-- | lib/alignof.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/alignof.h b/lib/alignof.h index 53583b833..6977c3ed2 100644 --- a/lib/alignof.h +++ b/lib/alignof.h @@ -1,5 +1,5 @@ /* Determine alignment of types. - Copyright (C) 2003-2004, 2006, 2009-2017 Free Software Foundation, Inc. + Copyright (C) 2003-2004, 2006, 2009-2021 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 @@ -12,7 +12,7 @@ GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. */ + along with this program; if not, see <https://www.gnu.org/licenses/>. */ #ifndef _ALIGNOF_H #define _ALIGNOF_H @@ -36,12 +36,14 @@ /* alignof_type (TYPE) Determine the good alignment of an object of the given type at compile time. Note that this is not necessarily the same as alignof_slot(type). - For example, with GNU C on x86 platforms: alignof_type(double) = 8, but + For example, with GNU C on x86 platforms and with clang on Linux/x86: + alignof_type(long long) = 8, but alignof_slot(long long) = 4. + And alignof_type(double) = 8, but - when -malign-double is not specified: alignof_slot(double) = 4, - when -malign-double is specified: alignof_slot(double) = 8. Note: The result cannot be used as a value for an 'enum' constant, due to bugs in HP-UX 10.20 cc and AIX 3.2.5 xlc. */ -#if defined __GNUC__ || defined __IBM__ALIGNOF__ +#if defined __GNUC__ || defined __clang__ || defined __IBM__ALIGNOF__ # define alignof_type __alignof__ #else # define alignof_type alignof_slot |