view m4/open-cloexec.m4 @ 40192:cd38408f509a

relocatable-prog: Use $ORIGIN trick also on GNU/Hurd. * m4/relocatable.m4 (gl_RELOCATABLE_BODY): Use $ORIGIN trick also on Hurd with glibc >= 2.27.
author Bruno Haible <bruno@clisp.org>
date Sat, 23 Feb 2019 21:24:14 +0100
parents b06060465f09
children
line wrap: on
line source

# 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])])
])