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diff --git a/CppExamples/COMPO_CXX_SRC/adm/unix/config_files/check_pthreads.m4 b/CppExamples/COMPO_CXX_SRC/adm/unix/config_files/check_pthreads.m4
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+++ b/CppExamples/COMPO_CXX_SRC/adm/unix/config_files/check_pthreads.m4
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+dnl  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+dnl  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS 
+dnl 
+dnl  This library is free software; you can redistribute it and/or 
+dnl  modify it under the terms of the GNU Lesser General Public 
+dnl  License as published by the Free Software Foundation; either 
+dnl  version 2.1 of the License. 
+dnl 
+dnl  This library 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 GNU 
+dnl  Lesser General Public License for more details. 
+dnl 
+dnl  You should have received a copy of the GNU Lesser General Public 
+dnl  License along with this library; if not, write to the Free Software 
+dnl  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
+dnl 
+dnl  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 
+dnl
+dnl
+dnl
+#@synonpsis CHECK_PTHREADS
+dnl  check for pthreads system interfaces.
+dnl  set CFLAGS_PTHREADS,  CXXFLAGS_PTHREADS and LIBS_PTHREADS to
+dnl  flags to compiler flags for multithread program compilation (if exists),
+dnl  and library, if one required.
+dnl
+dnl@author   (C) Ruslan Shevchenko <Ruslan@Shevchenko.Kiev.UA>, 1998
+dnl@id $Id$
+dnl ----------------------------------------------------------------
+dnl CHECK_PTHREADS
+AC_DEFUN(CHECK_PTHREADS,[
+AC_REQUIRE([AC_CANONICAL_SYSTEM])dnl
+AC_CHECK_HEADER(pthread.h,AC_DEFINE(HAVE_PTHREAD_H))
+AC_CHECK_LIB(posix4,nanosleep, LIBS_PTHREADS="-lposix4",LIBS_PTHREADS="")
+AC_CHECK_LIB(pthread,pthread_mutex_lock, 
+             LIBS_PTHREADS="-lpthread $LIBS_PTHREADS")
+AC_MSG_CHECKING([parameters for using pthreads])
+case $build_os in
+  freebsd*)
+    CFLAGS_PTHREADS="-pthread"
+    CXXFLAGS_PTHREADS="-pthread"
+    ;;
+  *)
+    ;;
+esac
+AC_MSG_RESULT(["flags: $CFLAGS_PTHREADS\;libs: $LIBS_PTHREADS"])
+threads_ok=yes
+])dnl
+dnl
+dnl