dnl Copyright (C) 2006-2024  CEA, EDF
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, or (at your option) any later version.
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.salome-platform.org/ or email : webmaster.salome@opencascade.com
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_CXX_OPTION(-pthread,CPPFLAGS,flag=yes,flag=no)

if test $flag = no; then
  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",LIBS_PTHREADS="")
fi

if test $flag = no && x$LIBS_PTHREADS = x; then
  threads_ok=no
else
  threads_ok=yes
fi
])dnl
dnl
dnl