Index: bison/src/bison/2.4.1/bison-2.4.1-src/m4/subpipe.m4 |
=================================================================== |
--- bison/src/bison/2.4.1/bison-2.4.1-src/m4/subpipe.m4 (revision 0) |
+++ bison/src/bison/2.4.1/bison-2.4.1-src/m4/subpipe.m4 (revision 0) |
@@ -0,0 +1,27 @@ |
+# -*- Autoconf -*- |
+# Checks required to run `subpipe'. |
+# |
+# Copyright (C) 2002, 2003, 2005 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 3 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, see <http://www.gnu.org/licenses/>. |
+ |
+# Written by Paul Eggert <eggert@twinsun.com>. |
+ |
+AC_DEFUN([BISON_PREREQ_SUBPIPE], |
+[ |
+ AC_TYPE_PID_T |
+ AC_HEADER_SYS_WAIT |
+ AC_CHECK_FUNCS(dup2 waitpid) |
+ AC_FUNC_FORK |
+]) |