dnl

dnl Copyright 2003 Free Software Foundation, Inc.

dnl 

dnl This file is part of GNU Radio

dnl 

dnl GNU Radio is free software; you can redistribute it and/or modify

dnl it under the terms of the GNU General Public License as published by

dnl the Free Software Foundation; either version 3, or (at your option)

dnl any later version.

dnl 

dnl GNU Radio 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

dnl GNU General Public License for more details.

dnl 

dnl You should have received a copy of the GNU General Public License

dnl along with GNU Radio; see the file COPYING.  If not, write to

dnl the Free Software Foundation, Inc., 51 Franklin Street,

dnl Boston, MA 02110-1301, USA.

dnl 

# SWIG_PROG([required-version])

#

# Checks for the SWIG program.  If found you can (and should) call SWIG via $(SWIG).

# You can use the optional first argument to check if the version of the available SWIG

# is greater or equal to the value of the argument.  It should have the format:

# N[.N[.N]] (N is a number between 0 and 999.  Only the first N is mandatory.)

AC_DEFUN([SWIG_PROG],[

	AC_REQUIRE([AC_PROG_MAKE_SET])

	AC_CHECK_PROG(SWIG,swig,[`which swig`])

	if test -z "$SWIG" ; then

		AC_MSG_ERROR([Cannot find 'swig' program.  SWIG version >= $1 required])

		SWIG=false

	elif test -n "$1" ; then

		AC_MSG_CHECKING([for SWIG version])

		swig_version=`$SWIG -version 2>&1 | \

			awk '/^SWIG Version [[0-9]+\.[0-9]+\.[0-9]]+.*$/ { split($[3],a,"[[^.0-9]]"); print a[[1]] }'`

		AC_MSG_RESULT([$swig_version])

		if test -n "$swig_version" ; then

			swig_version=`echo $swig_version | \

				awk '{ split($[1],a,"\."); print [a[1]*1000000+a[2]*1000+a[3]] }' 2>/dev/null`

			swig_required_version=`echo $1 | \

				awk '{ split($[1],a,"\."); print [a[1]*1000000+a[2]*1000+a[3]] }' 2>/dev/null`

			if test $swig_required_version -gt $swig_version ; then

				AC_MSG_ERROR([SWIG version >= $1 required])

			fi

		else

			AC_MSG_ERROR([cannot determine SWIG version])

		fi

	fi

])

# SWIG_ENABLE_CXX()

#

# Enable swig C++ support.  This effects all invocations of $(SWIG).

AC_DEFUN([SWIG_ENABLE_CXX],[

	AC_REQUIRE([SWIG_PROG])

	AC_REQUIRE([AC_PROG_CXX])

	if test "$SWIG" != "false" ; then

		SWIG="$SWIG -c++"

	fi

])

# SWIG_PYTHON([use-shadow-classes])

#

# Checks for Python and provides the $(SWIG_PYTHON_CPPFLAGS),

# $(SWIG_PYTHON_LIB) and $(SWIG_PYTHON_OPT) output variables.

# $(SWIG_PYTHON_OPT) contains all necessary swig options to generate

# code for Python.  If you need multi module support use

# $(SWIG_PYTHON_LIB) (provided by the SWIG_MULTI_MODULE_SUPPORT()

# macro) to link against the appropriate library.  It contains the

# SWIG Python runtime library that is needed by the type check system

# for example.

AC_DEFUN([SWIG_PYTHON],[

	AC_REQUIRE([SWIG_PROG])

	AC_REQUIRE([PYTHON_DEVEL])

	if test "$SWIG" != "false" ; then

		AC_SUBST(SWIG_PYTHON_LIB,[-lswigpy])

dnl		test ! "x$1" = "xno" && swig_shadow=" -shadow" || swig_shadow=""

dnl		AC_SUBST(SWIG_PYTHON_OPT,[-python$swig_shadow])

		AC_SUBST(SWIG_PYTHON_OPT,[-python])

	fi

	AC_SUBST(SWIG_PYTHON_CPPFLAGS,[$PYTHON_CPPFLAGS])

])