Mercurial > gnulib
view m4/ssize_t.m4 @ 17364:7524d97ae56f
stdalign: port to stricter ISO C11
ISO C11 says that _Alignof's operand must be a parenthesized type.
Problem reported by Eli Zaretskii in
<http://lists.gnu.org/archive/html/emacs-devel/2013-03/msg00960.html>.
* doc/posix-headers/stdalign.texi (stdalign.h): Document this.
* m4/stdalign.m4 (gl_STDALIGN_H): Don't use _Alignof (expr).
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Fri, 29 Mar 2013 19:47:13 -0700 |
| parents | e542fd46ad6f |
| children | 344018b6e5d7 |
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# ssize_t.m4 serial 5 (gettext-0.18.2) dnl Copyright (C) 2001-2003, 2006, 2010-2013 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. dnl From Bruno Haible. dnl Test whether ssize_t is defined. AC_DEFUN([gt_TYPE_SSIZE_T], [ AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include <sys/types.h>]], [[int x = sizeof (ssize_t *) + sizeof (ssize_t); return !x;]])], [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])]) if test $gt_cv_ssize_t = no; then AC_DEFINE([ssize_t], [int], [Define as a signed type of the same size as size_t.]) fi ])