projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b2d69cc PE |
1 | # -*- Autoconf -*- |
| 2 | # Checks required to run `subpipe'. | |
| 3 | # | |
| 575619af | 4 | # Copyright (C) 2002-2003, 2005, 2009-2011 Free Software Foundation, |
| e141f4d4 | 5 | # Inc. |
| 5b2d69cc | 6 | # |
| f16b0819 | 7 | # This program is free software: you can redistribute it and/or modify |
| 5b2d69cc | 8 | # it under the terms of the GNU General Public License as published by |
| f16b0819 | 9 | # the Free Software Foundation, either version 3 of the License, or |
| 5b2d69cc PE |
10 | # (at your option) any later version. |
| 11 | # | |
| 12 | # This program is distributed in the hope that it will be useful, | |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | # GNU General Public License for more details. | |
| 16 | # | |
| 17 | # You should have received a copy of the GNU General Public License | |
| f16b0819 | 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 5b2d69cc PE |
19 | |
| 20 | # Written by Paul Eggert <eggert@twinsun.com>. | |
| 21 | ||
| 22 | AC_DEFUN([BISON_PREREQ_SUBPIPE], | |
| 23 | [ | |
| 24 | AC_TYPE_PID_T | |
| 5b2d69cc PE |
25 | AC_HEADER_SYS_WAIT |
| 26 | AC_CHECK_FUNCS(dup2 waitpid) | |
| 27 | AC_FUNC_FORK | |
| 28 | ]) |