projects / bison.git / blame
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|---|---|---|
| 5b2d69cc PE |
1 | # -*- Autoconf -*- |
| 2 | # Checks required to run `subpipe'. | |
| 3 | # | |
| 8012adae | 4 | # Copyright (C) 2002, 2003 Free Software Foundation, Inc. |
| 5b2d69cc PE |
5 | # |
| 6 | # This program is free software; you can redistribute it and/or modify | |
| 7 | # it under the terms of the GNU General Public License as published by | |
| 8 | # the Free Software Foundation; either version 2 of the License, or | |
| 9 | # (at your option) any later version. | |
| 10 | # | |
| 11 | # This program is distributed in the hope that it will be useful, | |
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | # GNU General Public License for more details. | |
| 15 | # | |
| 16 | # You should have received a copy of the GNU General Public License | |
| 17 | # along with this program; if not, write to the Free Software | |
| 0fb669f9 PE |
18 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | # 02110-1301 USA | |
| 5b2d69cc PE |
20 | |
| 21 | # Written by Paul Eggert <eggert@twinsun.com>. | |
| 22 | ||
| 23 | AC_DEFUN([BISON_PREREQ_SUBPIPE], | |
| 24 | [ | |
| 25 | AC_TYPE_PID_T | |
| 8012adae | 26 | AC_CHECK_HEADERS([fcntl.h]) |
| 5b2d69cc PE |
27 | AC_HEADER_SYS_WAIT |
| 28 | AC_CHECK_FUNCS(dup2 waitpid) | |
| 29 | AC_FUNC_FORK | |
| 30 | ]) |