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Initial version.

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This commit is contained in:
Paul Eggert
2002-10-20 06:28:23 +00:00
parent bb33f19a4b
commit 5b2d69cc5b
3 changed files with 252 additions and 0 deletions
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30
m4/subpipe.m4 Normal file
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# -*- Autoconf -*-
# Checks required to run `subpipe'.
#
# Copyright (C) 2002 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307 USA
# Written by Paul Eggert <eggert@twinsun.com>.
AC_DEFUN([BISON_PREREQ_SUBPIPE],
[
AC_TYPE_PID_T
AC_CHECK_HEADERS([fcntl.h sys/wait.h])
AC_HEADER_SYS_WAIT
AC_CHECK_FUNCS(dup2 waitpid)
AC_FUNC_FORK
])