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ac_pkg_swig.m4
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ac_pkg_swig.m4
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# ===========================================================================
# http://autoconf-archive.cryp.to/ac_pkg_swig.html
# ===========================================================================
#
# SYNOPSIS
#
# AC_PROG_SWIG([major.minor.micro])
#
# DESCRIPTION
#
# This macro searches for a SWIG installation on your system. If found you
# should call SWIG via $(SWIG). You can use the optional first argument to
# check if the version of the available SWIG is greater than 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.)
#
# If the version argument is given (e.g. 1.3.17), AC_PROG_SWIG checks that
# the swig package is this version number or higher.
#
# In configure.in, use as:
#
# AC_PROG_SWIG(1.3.17)
# SWIG_ENABLE_CXX
# SWIG_MULTI_MODULE_SUPPORT
# SWIG_PYTHON
#
# LAST MODIFICATION
#
# 2010-07-17 (Brad Aagaard, permit newer major and minor versions than required)
# 2017-08-17 (Brad Aagaard, add optional argument with maximum version allowed)
#
# COPYLEFT
#
# Copyright (c) 2008 Sebastian Huber <[email protected]>
# Copyright (c) 2008 Alan W. Irwin <[email protected]>
# Copyright (c) 2008 Rafael Laboissiere <[email protected]>
# Copyright (c) 2008 Andrew Collier <[email protected]>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Macro Archive. When you make and
# distribute a modified version of the Autoconf Macro, you may extend this
# special exception to the GPL to apply to your modified version as well.
AC_DEFUN([AC_PROG_SWIG],[
AC_PATH_PROG([SWIG],[swig])
if test -z "$SWIG" ; then
AC_MSG_FAILURE([cannot find 'swig' program. Go to http://www.swig.org to download SWIG.])
SWIG='echo "Error: SWIG is not installed. SWIG is available at http://www.swig.org". ; false'
elif test -n "$1" ; then
AC_MSG_CHECKING([for SWIG version])
[swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`]
AC_MSG_RESULT([$swig_version])
if test -n "$swig_version" ; then
# Calculate the minimum version number components
[minversion=$1]
[minversion_major=`echo $minversion | sed 's/[^0-9].*//'`]
if test -z "$minversion_major" ; then
[minversion_major=0]
fi
[minversion=`echo $minversion | sed 's/[0-9]*[^0-9]//'`]
[minversion_minor=`echo $minversion | sed 's/[^0-9].*//'`]
if test -z "$minversion_minor" ; then
[minversion_minor=0]
fi
[minversion=`echo $minversion | sed 's/[0-9]*[^0-9]//'`]
[minversion_patch=`echo $minversion | sed 's/[^0-9].*//'`]
if test -z "$minversion_patch" ; then
[minversion_patch=0]
fi
# Calculate the maximum version number components
if test -n "$2" ; then
[maxversion=$2]
[maxversion_major=`echo $maxversion | sed 's/[^0-9].*//'`]
if test -z "$maxversion_major" ; then
[maxversion_major=0]
fi
[maxversion=`echo $maxversion | sed 's/[0-9]*[^0-9]//'`]
[maxversion_minor=`echo $maxversion | sed 's/[^0-9].*//'`]
if test -z "$maxversion_minor" ; then
[maxversion_minor=0]
fi
[maxversion=`echo $maxversion | sed 's/[0-9]*[^0-9]//'`]
[maxversion_patch=`echo $maxversion | sed 's/[^0-9].*//'`]
if test -z "$maxversion_patch" ; then
[maxversion_patch=0]
fi
fi
# Calculate the available version number components
[available=$swig_version]
[available_major=`echo $available | sed 's/[^0-9].*//'`]
if test -z "$available_major" ; then
[available_major=0]
fi
[available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
[available_minor=`echo $available | sed 's/[^0-9].*//'`]
if test -z "$available_minor" ; then
[available_minor=0]
fi
[available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
[available_patch=`echo $available | sed 's/[^0-9].*//'`]
if test -z "$available_patch" ; then
[available_patch=0]
fi
if test $available_major -lt $minversion_major ; then
AC_MSG_FAILURE([SWIG version >= $1 is required. You have $swig_version. Go to http://www.swig.org to get the current version.])
SWIG='echo "Error: SWIG version >= $1 is required. You have '"$swig_version"'. Go to http://www.swig.org to get the current version." ; false'
elif test $available_major -eq $minversion_major -a $available_minor -lt $minversion_minor ; then
AC_MSG_FAILURE([SWIG version >= $1 is required. You have $swig_version. Go to http://www.swig.org to get the current version.])
SWIG='echo "Error: SWIG version >= $1 is required. You have '"$swig_version"'. Go to http://www.swig.org to get the current version." ; false'
elif test $available_major -eq $minversion_major -a $available_minor -eq $minversion_minor -a $available_patch -lt $minversion_patch ; then
AC_MSG_FAILURE([SWIG version >= $1 is required. You have $swig_version. Go to http://www.swig.org to get the current version.])
SWIG='echo "Error: SWIG version >= $1 is required. You have '"$swig_version"'. Go to http://www.swig.org to get the current version." ; false'
elif test -n "$maxversion" ; then
if test $available_major -gt $maxversion_major ; then
AC_MSG_FAILURE([SWIG version <= $2 is required. You have $swig_version. Go to http://www.swig.org to get an earlier version.])
SWIG='echo "Error: SWIG version <= $2 is required. You have '"$swig_version"'. Go to http://www.swig.org to get an earlier version." ; false'
elif test $available_major -eq $maxversion_major -a $available_minor -gt $maxversion_minor ; then
AC_MSG_FAILURE([SWIG version <= $2 is required. You have $swig_version. Go to http://www.swig.org to get the current version.])
SWIG='echo "Error: SWIG version <= $2 is required. You have '"$swig_version"'. Go to http://www.swig.org to get the current version." ; false'
elif test $available_major -eq $maxversion_major -a $available_minor -eq $maxversion_minor -a $available_patch -gt $maxversion_patch ; then
AC_MSG_FAILURE([SWIG version <= $2 is required. You have $swig_version. Go to http://www.swig.org to get an earlier version.])
SWIG='echo "Error: SWIG version <= $2 is required. You have '"$swig_version"'. Go to http://www.swig.org to get an earlier version." ; false'
fi
else
AC_MSG_NOTICE([SWIG executable is '$SWIG'])
SWIG_LIB=`$SWIG -swiglib`
AC_MSG_NOTICE([SWIG library directory is '$SWIG_LIB'])
fi
else
AC_MSG_FAILURE([cannot determine SWIG version])
SWIG='echo "Error: Cannot determine SWIG version. See the SWIG website http://www.swig.org" ; false'
fi
fi
AC_SUBST([SWIG_LIB])
])