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view m4/open-cloexec.m4 @ 40246:c34f677e6117 default tip master

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_Noreturn: GCC 4.7 does not support [[noreturn]] in C++11 mode * lib/_Noreturn.h, m4/gnulib-common.m4: Don't use [[noreturn]] before GCC 4.8.
author Akim Demaille <akim.demaille@gmail.com>
date Sun, 17 Mar 2019 19:27:20 +0100
parents b06060465f09
children
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# Test whether O_CLOEXEC is defined.

dnl Copyright 2017-2019 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.

AC_DEFUN([gl_PREPROC_O_CLOEXEC],
[
  AC_CACHE_CHECK([for O_CLOEXEC],
    [gl_cv_macro_O_CLOEXEC],
    [AC_COMPILE_IFELSE(
       [AC_LANG_PROGRAM([[#include <fcntl.h>
                          #ifndef O_CLOEXEC
                            choke me;
                          #endif
                        ]],
                        [[return O_CLOEXEC;]])],
       [gl_cv_macro_O_CLOEXEC=yes],
       [gl_cv_macro_O_CLOEXEC=no])])
])