source: m4/ax_pkg_swig.m4

Last change on this file was 46a2dc3, checked in by Tom Carroll <thomas.carroll@…>, 12 years ago

Added supporting autoconf macros

  • Property mode set to 100755
File size: 6.7 KB
Line 
1# ===========================================================================
2#        http://www.gnu.org/software/autoconf-archive/ax_pkg_swig.html
3# ===========================================================================
4#
5# SYNOPSIS
6#
7#   AX_PKG_SWIG([major.minor.micro], [action-if-found], [action-if-not-found])
8#
9# DESCRIPTION
10#
11#   This macro searches for a SWIG installation on your system. If found,
12#   then SWIG is AC_SUBST'd; if not found, then $SWIG is empty.  If SWIG is
13#   found, then SWIG_LIB is set to the SWIG library path, and AC_SUBST'd.
14#
15#   You can use the optional first argument to check if the version of the
16#   available SWIG is greater than or equal to the value of the argument. It
17#   should have the format: N[.N[.N]] (N is a number between 0 and 999. Only
18#   the first N is mandatory.) If the version argument is given (e.g.
19#   1.3.17), AX_PKG_SWIG checks that the swig package is this version number
20#   or higher.
21#
22#   As usual, action-if-found is executed if SWIG is found, otherwise
23#   action-if-not-found is executed.
24#
25#   In configure.in, use as:
26#
27#     AX_PKG_SWIG(1.3.17, [], [ AC_MSG_ERROR([SWIG is required to build..]) ])
28#     AX_SWIG_ENABLE_CXX
29#     AX_SWIG_MULTI_MODULE_SUPPORT
30#     AX_SWIG_PYTHON
31#
32# LICENSE
33#
34#   Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de>
35#   Copyright (c) 2008 Alan W. Irwin <irwin@beluga.phys.uvic.ca>
36#   Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net>
37#   Copyright (c) 2008 Andrew Collier <colliera@ukzn.ac.za>
38#   Copyright (c) 2011 Murray Cumming <murrayc@openismus.com>
39#
40#   This program is free software; you can redistribute it and/or modify it
41#   under the terms of the GNU General Public License as published by the
42#   Free Software Foundation; either version 2 of the License, or (at your
43#   option) any later version.
44#
45#   This program is distributed in the hope that it will be useful, but
46#   WITHOUT ANY WARRANTY; without even the implied warranty of
47#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
48#   Public License for more details.
49#
50#   You should have received a copy of the GNU General Public License along
51#   with this program. If not, see <http://www.gnu.org/licenses/>.
52#
53#   As a special exception, the respective Autoconf Macro's copyright owner
54#   gives unlimited permission to copy, distribute and modify the configure
55#   scripts that are the output of Autoconf when processing the Macro. You
56#   need not follow the terms of the GNU General Public License when using
57#   or distributing such scripts, even though portions of the text of the
58#   Macro appear in them. The GNU General Public License (GPL) does govern
59#   all other use of the material that constitutes the Autoconf Macro.
60#
61#   This special exception to the GPL applies to versions of the Autoconf
62#   Macro released by the Autoconf Archive. When you make and distribute a
63#   modified version of the Autoconf Macro, you may extend this special
64#   exception to the GPL to apply to your modified version as well.
65
66#serial 8
67
68AC_DEFUN([AX_PKG_SWIG],[
69        # Ubuntu has swig 2.0 as /usr/bin/swig2.0
70        AC_PATH_PROGS([SWIG],[swig swig2.0])
71        if test -z "$SWIG" ; then
72                m4_ifval([$3],[$3],[:])
73        elif test -n "$1" ; then
74                AC_MSG_CHECKING([SWIG version])
75                [swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`]
76                AC_MSG_RESULT([$swig_version])
77                if test -n "$swig_version" ; then
78                        # Calculate the required version number components
79                        [required=$1]
80                        [required_major=`echo $required | sed 's/[^0-9].*//'`]
81                        if test -z "$required_major" ; then
82                                [required_major=0]
83                        fi
84                        [required=`echo $required | sed 's/[0-9]*[^0-9]//'`]
85                        [required_minor=`echo $required | sed 's/[^0-9].*//'`]
86                        if test -z "$required_minor" ; then
87                                [required_minor=0]
88                        fi
89                        [required=`echo $required | sed 's/[0-9]*[^0-9]//'`]
90                        [required_patch=`echo $required | sed 's/[^0-9].*//'`]
91                        if test -z "$required_patch" ; then
92                                [required_patch=0]
93                        fi
94                        # Calculate the available version number components
95                        [available=$swig_version]
96                        [available_major=`echo $available | sed 's/[^0-9].*//'`]
97                        if test -z "$available_major" ; then
98                                [available_major=0]
99                        fi
100                        [available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
101                        [available_minor=`echo $available | sed 's/[^0-9].*//'`]
102                        if test -z "$available_minor" ; then
103                                [available_minor=0]
104                        fi
105                        [available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
106                        [available_patch=`echo $available | sed 's/[^0-9].*//'`]
107                        if test -z "$available_patch" ; then
108                                [available_patch=0]
109                        fi
110                        # Convert the version tuple into a single number for easier comparison.
111                        # Using base 100 should be safe since SWIG internally uses BCD values
112                        # to encode its version number.
113                        required_swig_vernum=`expr $required_major \* 10000 \
114                            \+ $required_minor \* 100 \+ $required_patch`
115                        available_swig_vernum=`expr $available_major \* 10000 \
116                            \+ $available_minor \* 100 \+ $available_patch`
117
118                        if test $available_swig_vernum -lt $required_swig_vernum; then
119                                AC_MSG_WARN([SWIG version >= $1 is required.  You have $swig_version.])
120                                SWIG=''
121                                m4_ifval([$3],[$3],[])
122                        else
123                                AC_MSG_CHECKING([for SWIG library])
124                                SWIG_LIB=`$SWIG -swiglib`
125                                AC_MSG_RESULT([$SWIG_LIB])
126                                m4_ifval([$2],[$2],[])
127                        fi
128                else
129                        AC_MSG_WARN([cannot determine SWIG version])
130                        SWIG=''
131                        m4_ifval([$3],[$3],[])
132                fi
133        fi
134        AC_SUBST([SWIG_LIB])
135])
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