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add Autoconf macro for SWIG
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@ -126,6 +126,10 @@ if test "x${TREXIO_DEVEL}" != "x"; then
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AC_PROG_AWK
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AM_PATH_PYTHON([3.0])
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AX_PKG_SWIG(4.0.0, [], AC_MSG_WARN([SWIG is required to build Python API.]) )
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# The macro below performs Python benchmarks, but overlapping with AM_PATH_PYTHON
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#AX_SWIG_PYTHON
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AC_CHECK_PROGS([EMACS],[emacs26 emacs],[no])
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if test x${EMACS} == xno ; then
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AC_MSG_ERROR([
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139
m4/ax_pkg_swig.m4
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139
m4/ax_pkg_swig.m4
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@ -0,0 +1,139 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_pkg_swig.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_PKG_SWIG([major.minor.micro], [action-if-found], [action-if-not-found])
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#
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# DESCRIPTION
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#
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# This macro searches for a SWIG installation on your system. If found,
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# then SWIG is AC_SUBST'd; if not found, then $SWIG is empty. If SWIG is
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# found, then SWIG_LIB is set to the SWIG library path, and AC_SUBST'd.
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#
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# You can use the optional first argument to check if the version of the
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# available SWIG is greater than or equal to the value of the argument. It
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# should have the format: N[.N[.N]] (N is a number between 0 and 999. Only
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# the first N is mandatory.) If the version argument is given (e.g.
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# 1.3.17), AX_PKG_SWIG checks that the swig package is this version number
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# or higher.
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#
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# As usual, action-if-found is executed if SWIG is found, otherwise
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# action-if-not-found is executed.
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#
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# In configure.in, use as:
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#
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# AX_PKG_SWIG(1.3.17, [], [ AC_MSG_ERROR([SWIG is required to build..]) ])
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# AX_SWIG_ENABLE_CXX
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# AX_SWIG_MULTI_MODULE_SUPPORT
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# AX_SWIG_PYTHON
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#
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# LICENSE
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#
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# Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de>
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# Copyright (c) 2008 Alan W. Irwin
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# Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net>
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# Copyright (c) 2008 Andrew Collier
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# Copyright (c) 2011 Murray Cumming <murrayc@openismus.com>
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# Copyright (c) 2021 Vincent Danjean <Vincent.Danjean@ens-lyon.org>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# As a special exception, the respective Autoconf Macro's copyright owner
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# gives unlimited permission to copy, distribute and modify the configure
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# scripts that are the output of Autoconf when processing the Macro. You
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# need not follow the terms of the GNU General Public License when using
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# or distributing such scripts, even though portions of the text of the
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# Macro appear in them. The GNU General Public License (GPL) does govern
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# all other use of the material that constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by the Autoconf Archive. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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#serial 14
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AC_DEFUN([AX_PKG_SWIG],[
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# Find path to the "swig" executable.
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AC_PATH_PROGS([SWIG],[swig swig3.0 swig2.0])
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if test -z "$SWIG" ; then
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m4_ifval([$3],[$3],[:])
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elif test -z "$1" ; then
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m4_ifval([$2],[$2],[:])
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else
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AC_MSG_CHECKING([SWIG version])
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[swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`]
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AC_MSG_RESULT([$swig_version])
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if test -n "$swig_version" ; then
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# Calculate the required version number components
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[required=$1]
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[required_major=`echo $required | sed 's/[^0-9].*//'`]
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if test -z "$required_major" ; then
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[required_major=0]
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fi
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[required=`echo $required. | sed 's/[0-9]*[^0-9]//'`]
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[required_minor=`echo $required | sed 's/[^0-9].*//'`]
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if test -z "$required_minor" ; then
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[required_minor=0]
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fi
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[required=`echo $required. | sed 's/[0-9]*[^0-9]//'`]
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[required_patch=`echo $required | sed 's/[^0-9].*//'`]
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if test -z "$required_patch" ; then
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[required_patch=0]
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fi
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# Calculate the available version number components
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[available=$swig_version]
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[available_major=`echo $available | sed 's/[^0-9].*//'`]
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if test -z "$available_major" ; then
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[available_major=0]
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fi
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[available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
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[available_minor=`echo $available | sed 's/[^0-9].*//'`]
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if test -z "$available_minor" ; then
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[available_minor=0]
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fi
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[available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
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[available_patch=`echo $available | sed 's/[^0-9].*//'`]
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if test -z "$available_patch" ; then
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[available_patch=0]
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fi
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# Convert the version tuple into a single number for easier comparison.
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# Using base 100 should be safe since SWIG internally uses BCD values
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# to encode its version number.
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required_swig_vernum=`expr $required_major \* 10000 \
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\+ $required_minor \* 100 \+ $required_patch`
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available_swig_vernum=`expr $available_major \* 10000 \
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\+ $available_minor \* 100 \+ $available_patch`
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if test $available_swig_vernum -lt $required_swig_vernum; then
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AC_MSG_WARN([SWIG version >= $1 is required. You have $swig_version.])
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SWIG=''
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m4_ifval([$3],[$3],[])
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else
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AC_MSG_CHECKING([for SWIG library])
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SWIG_LIB=`$SWIG -swiglib`
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AC_MSG_RESULT([$SWIG_LIB])
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m4_ifval([$2],[$2],[])
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fi
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else
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AC_MSG_WARN([cannot determine SWIG version])
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SWIG=''
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m4_ifval([$3],[$3],[])
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fi
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fi
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AC_SUBST([SWIG_LIB])
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])
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