Commit | Line | Data |
---|---|---|
067428c1 | 1 | # pipe2.m4 serial 2 |
ba318903 | 2 | dnl Copyright (C) 2009-2014 Free Software Foundation, Inc. |
067428c1 PE |
3 | dnl This file is free software; the Free Software Foundation |
4 | dnl gives unlimited permission to copy and/or distribute it, | |
5 | dnl with or without modifications, as long as this notice is preserved. | |
6 | ||
7 | AC_DEFUN([gl_FUNC_PIPE2], | |
8 | [ | |
9 | AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) | |
10 | ||
11 | dnl Persuade glibc <unistd.h> to declare pipe2(). | |
12 | AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) | |
13 | ||
14 | AC_CHECK_FUNCS_ONCE([pipe2]) | |
15 | if test $ac_cv_func_pipe2 != yes; then | |
16 | HAVE_PIPE2=0 | |
17 | fi | |
18 | ]) |