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# Check for IPC System V shm support. -*- Autoconf -*-
# Copyright 2003 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, 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., 51 Franklin Street, Boston, MA
# 02110-1301, USA.
AC_DEFUN([GR_SYSV_SHM],
[
AC_LANG_SAVE
AC_LANG_C
AC_CHECK_HEADERS([sys/ipc.h sys/shm.h])
save_LIBS="$LIBS"
AC_SEARCH_LIBS(shmat, [cygipc ipc],
[ IPC_LIBS="$LIBS" ],
[ AC_MSG_WARN([SystemV IPC support not found. ]) ]
)
LIBS="$save_LIBS"
AC_LANG_RESTORE
AC_SUBST(IPC_LIBS)
])
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