Mercurial > gnulib
view m4/unlink-busy.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> |
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date | Fri, 29 Mar 2013 19:47:13 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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#serial 12 dnl From J. David Anglin. dnl HPUX and other systems can't unlink shared text that is being executed. # Copyright (C) 2000-2001, 2004, 2007, 2009-2013 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_UNLINK_BUSY_TEXT], [dnl AC_CACHE_CHECK([whether a running program can be unlinked], gl_cv_func_unlink_busy_text, [ AC_RUN_IFELSE( [AC_LANG_SOURCE( [AC_INCLUDES_DEFAULT[ int main (int argc, char **argv) { int result = 0; if (argc == 0) result |= 1; else if (unlink (argv[0]) != 0) result |= 2; return result; }]])], gl_cv_func_unlink_busy_text=yes, gl_cv_func_unlink_busy_text=no, gl_cv_func_unlink_busy_text=no ) ] ) if test $gl_cv_func_unlink_busy_text = no; then INSTALL=$ac_install_sh fi ])