| # 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])]) | |
| ]) |