#

# SYNOPSIS

#

#   AX_BOOST_THREAD

#

# DESCRIPTION

#

#   Test for Thread library from the Boost C++ libraries.

#

#   This macro calls:

#

#     AC_SUBST(BOOST_THREAD_LIB)

#     AC_SUBST(BOOST_CXXFLAGS)

#

#   And sets:

#

#     HAVE_BOOST_THREAD

#

# COPYLEFT

#

#   Copyright (c) 2008 Thomas Porschberg <[email protected]>

#   Copyright (c) 2008 Michael Tindal

#   Copyright (c) 2008 Free Software Foundation, Inc.

#

#   Copying and distribution of this file, with or without modification, are

#   permitted in any medium without royalty provided the copyright notice

#   and this notice are preserved.

AC_DEFUN([AX_BOOST_THREAD],

[

    AC_REQUIRE([AX_BOOST_BASE])

    AC_REQUIRE([ACX_PTHREAD])

    _AX_BOOST_WITH([boost_thread])

    if test "$want_boost" = "yes"; then

        AC_REQUIRE([AC_PROG_CC])

        AC_REQUIRE([AC_PROG_CXX])

        AC_REQUIRE([AC_CANONICAL_HOST])

        CPPFLAGS_SAVED="$CPPFLAGS"

        LDFLAGS_SAVED="$LDFLAGS"

	CXXFLAGS_SAVED="$CXXFLAGS"

        CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"

        LDFLAGS="$LDFLAGS $BOOST_LDFLAGS $PTHREAD_LIBS"

	CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"

        AC_CACHE_CHECK([whether the boost::thread includes are available],

                       [ax_cv_boost_thread],

        [AC_LANG_PUSH([C++])

             AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/thread/thread.hpp>]],

                                   [[boost::thread_group thrds;

                                   return 0;]])],

                   [ax_cv_boost_thread=yes], [ax_cv_boost_thread=no])

             AC_LANG_POP([C++])

        ])

        if test "$ax_cv_boost_thread" = "yes"; then

	    BOOST_CXXFLAGS="$PTHREAD_CFLAGS"

            AC_SUBST([BOOST_CXXFLAGS])

	    _AX_BOOST_CHECK_LIB([boost_thread])

	    if test "$link_ok" = "yes" && test -n "$PTHREAD_LIBS"; then

	        BOOST_THREAD_LIB="$BOOST_THREAD_LIB $PTHREAD_LIBS"

	    fi

        fi

        CPPFLAGS="$CPPFLAGS_SAVED"

        LDFLAGS="$LDFLAGS_SAVED"

	CXXFLAGS="$CXXFLAGS_SAVED"

    fi

])