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c0c3707f CB |
1 | # Test whether O_CLOEXEC is defined. |
2 | ||
3 | dnl Copyright 2017-2019 Free Software Foundation, Inc. | |
4 | dnl This file is free software; the Free Software Foundation | |
5 | dnl gives unlimited permission to copy and/or distribute it, | |
6 | dnl with or without modifications, as long as this notice is preserved. | |
7 | ||
8 | AC_DEFUN([gl_PREPROC_O_CLOEXEC], | |
9 | [ | |
10 | AC_CACHE_CHECK([for O_CLOEXEC], | |
11 | [gl_cv_macro_O_CLOEXEC], | |
12 | [AC_COMPILE_IFELSE( | |
13 | [AC_LANG_PROGRAM([[#include <fcntl.h> | |
14 | #ifndef O_CLOEXEC | |
15 | choke me; | |
16 | #endif | |
17 | ]], | |
18 | [[return O_CLOEXEC;]])], | |
19 | [gl_cv_macro_O_CLOEXEC=yes], | |
20 | [gl_cv_macro_O_CLOEXEC=no])]) | |
21 | ]) |