1 dnl Copyright (C) 2006-2008 CEA/DEN, EDF R&D
3 dnl This library is free software; you can redistribute it and/or
4 dnl modify it under the terms of the GNU Lesser General Public
5 dnl License as published by the Free Software Foundation; either
6 dnl version 2.1 of the License.
8 dnl This library is distributed in the hope that it will be useful,
9 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
10 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 dnl Lesser General Public License for more details.
13 dnl You should have received a copy of the GNU Lesser General Public
14 dnl License along with this library; if not, write to the Free Software
15 dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 dnl See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
19 dnl @synopsis AC_CXX_NAMESPACES
20 dnl If the compiler can prevent names clashes using namespaces, define
23 dnl @author Luc Maisonobe
25 AC_DEFUN([AC_CXX_NAMESPACES],
26 [AC_CACHE_CHECK(whether the compiler implements namespaces,
30 AC_TRY_COMPILE([namespace Outer { namespace Inner { int i = 0; }}],
31 [using namespace Outer::Inner; return i;],
32 ac_cv_cxx_namespaces=yes, ac_cv_cxx_namespaces=no)
35 if test "$ac_cv_cxx_namespaces" = yes; then
36 AC_DEFINE(HAVE_NAMESPACES,,[define if the compiler implements namespaces])