binutils-gdb/gnulib/import/m4/open-cloexec.m4
Tom Tromey dc6c21dabf Update gnulib
This updates gnulib to a relatively recent commit.  Most of this was
done by the gnulib import script; the only change I made was to
update-gnulib.sh.

Tested on x86-64 Fedora 34.  I also did a mingw cross build.
2022-04-18 10:14:04 -06:00

22 lines
723 B
Plaintext

# Test whether O_CLOEXEC is defined.
dnl Copyright 2017-2022 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])])
])