1 dnl Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
3 dnl Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 dnl CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 dnl This library is free software; you can redistribute it and/or
7 dnl modify it under the terms of the GNU Lesser General Public
8 dnl License as published by the Free Software Foundation; either
9 dnl version 2.1 of the License.
11 dnl This library is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 dnl Lesser General Public License for more details.
16 dnl You should have received a copy of the GNU Lesser General Public
17 dnl License along with this library; if not, write to the Free Software
18 dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 dnl See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 dnl @synopsis AC_CXX_MUTABLE
24 dnl If the compiler allows modifying class data members flagged with
25 dnl the mutable keyword even in const objects (for example in the
26 dnl body of a const member function), define HAVE_MUTABLE.
28 dnl @author Luc Maisonobe
30 AC_DEFUN([AC_CXX_MUTABLE],
31 [AC_CACHE_CHECK(whether the compiler supports the mutable keyword,
36 class A { mutable int i;
38 int f (int n) const { i = n; return i; }
40 ],[A a; return a.f (1);],
41 ac_cv_cxx_mutable=yes, ac_cv_cxx_mutable=no)
44 if test "$ac_cv_cxx_mutable" = yes; then
45 AC_DEFINE(HAVE_MUTABLE,,[define if the compiler supports the mutable keyword])