| # Test whether O_CLOEXEC is defined. |
| |
| dnl Copyright 2017-2021 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])]) |
| ]) |
