# =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_pkg_swig.html # =========================================================================== # # SYNOPSIS # # AX_PKG_SWIG([major.minor.micro], [action-if-found], [action-if-not-found]) # # DESCRIPTION # # This macro searches for a SWIG installation on your system. If found, # then SWIG is AC_SUBST'd; if not found, then $SWIG is empty. If SWIG is # found, then SWIG_LIB is set to the SWIG library path, and AC_SUBST'd. # # 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), AX_PKG_SWIG checks that the swig package is this version number # or higher. # # As usual, action-if-found is executed if SWIG is found, otherwise # action-if-not-found is executed. # # In configure.in, use as: # # AX_PKG_SWIG(1.3.17, [], [ AC_MSG_ERROR([SWIG is required to build..]) ]) # AX_SWIG_ENABLE_CXX # AX_SWIG_MULTI_MODULE_SUPPORT # AX_SWIG_PYTHON # # LICENSE # # Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de> # Copyright (c) 2008 Alan W. Irwin # Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net> # Copyright (c) 2008 Andrew Collier # Copyright (c) 2011 Murray Cumming <murrayc@openismus.com> # # 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 <https://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 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. #serial 13 AC_DEFUN([AX_PKG_SWIG],[ # Find path to the "swig" executable. AC_PATH_PROGS([SWIG],[swig swig3.0 swig2.0]) if test -z "$SWIG" ; then m4_ifval([$3],[$3],[:]) elif test -n "$1" ; then AC_MSG_CHECKING([SWIG version]) [swig_version=`$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 required version number components [required=$1] [required_major=`echo $required | sed 's/[^0-9].*//'`] if test -z "$required_major" ; then [required_major=0] fi [required=`echo $required | sed 's/[0-9]*[^0-9]//'`] [required_minor=`echo $required | sed 's/[^0-9].*//'`] if test -z "$required_minor" ; then [required_minor=0] fi [required=`echo $required | sed 's/[0-9]*[^0-9]//'`] [required_patch=`echo $required | sed 's/[^0-9].*//'`] if test -z "$required_patch" ; then [required_patch=0] 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 # Convert the version tuple into a single number for easier comparison. # Using base 100 should be safe since SWIG internally uses BCD values # to encode its version number. required_swig_vernum=`expr $required_major \* 10000 \ \+ $required_minor \* 100 \+ $required_patch` available_swig_vernum=`expr $available_major \* 10000 \ \+ $available_minor \* 100 \+ $available_patch` if test $available_swig_vernum -lt $required_swig_vernum; then AC_MSG_WARN([SWIG version >= $1 is required. You have $swig_version.]) SWIG='' m4_ifval([$3],[$3],[]) else AC_MSG_CHECKING([for SWIG library]) SWIG_LIB=`$SWIG -swiglib` AC_MSG_RESULT([$SWIG_LIB]) m4_ifval([$2],[$2],[]) fi else AC_MSG_WARN([cannot determine SWIG version]) SWIG='' m4_ifval([$3],[$3],[]) fi fi AC_SUBST([SWIG_LIB]) ])