view m4/open-cloexec.m4 @ 39870:eaceb00fc84b

timevar: Include documentation in gnulib manual. * doc/timevar.texi: Change node and section name to 'Profiling of program phases'. In the code snippets, tweak the #includes and use GNU coding style. * doc/gnulib.texi: Include timevar.texi.
author Bruno Haible <bruno@clisp.org>
date Sun, 30 Sep 2018 19:27:56 +0200
parents 10eb9086bea0
children b06060465f09
line wrap: on
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# Test whether O_CLOEXEC is defined.

dnl Copyright 2017-2018 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])])
])