dnl

dnl Copyright 2003 Free Software Foundation, Inc.

dnl 

dnl This file is part of GNU Radio

dnl 

dnl GNU Radio is free software; you can redistribute it and/or modify

dnl it under the terms of the GNU General Public License as published by

dnl the Free Software Foundation; either version 2, or (at your option)

dnl any later version.

dnl 

dnl GNU Radio is distributed in the hope that it will be useful,

dnl but WITHOUT ANY WARRANTY; without even the implied warranty of

dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

dnl GNU General Public License for more details.

dnl 

dnl You should have received a copy of the GNU General Public License

dnl along with GNU Radio; see the file COPYING.  If not, write to

dnl the Free Software Foundation, Inc., 59 Temple Place - Suite 330,

dnl Boston, MA 02111-1307, USA.

AC_DEFUN([GR_CHECK_SHM_OPEN],

[

  SHM_OPEN_LIBS=""

  save_LIBS="$LIBS"

  AC_SEARCH_LIBS([shm_open], [rt], [SHM_OPEN_LIBS="$LIBS"])

  AC_CHECK_FUNCS([shm_open])

  LIBS="$save_LIBS"

  AC_SUBST(SHM_OPEN_LIBS)

])