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24a3136a | 1 | # =========================================================================== |
6e5d9dfa | 2 | # https://www.gnu.org/software/autoconf-archive/ax_pkg_swig.html |
24a3136a DS |
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> | |
6e5d9dfa | 35 | # Copyright (c) 2008 Alan W. Irwin |
24a3136a | 36 | # Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net> |
6e5d9dfa | 37 | # Copyright (c) 2008 Andrew Collier |
24a3136a | 38 | # Copyright (c) 2011 Murray Cumming <murrayc@openismus.com> |
ab3c863f SM |
39 | # Copyright (c) 2018 Reini Urban <rurban@cpan.org> |
40 | # Copyright (c) 2021 Vincent Danjean <Vincent.Danjean@ens-lyon.org> | |
24a3136a DS |
41 | # |
42 | # This program is free software; you can redistribute it and/or modify it | |
43 | # under the terms of the GNU General Public License as published by the | |
44 | # Free Software Foundation; either version 2 of the License, or (at your | |
45 | # option) any later version. | |
46 | # | |
47 | # This program is distributed in the hope that it will be useful, but | |
48 | # WITHOUT ANY WARRANTY; without even the implied warranty of | |
49 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General | |
50 | # Public License for more details. | |
51 | # | |
52 | # You should have received a copy of the GNU General Public License along | |
6e5d9dfa | 53 | # with this program. If not, see <https://www.gnu.org/licenses/>. |
24a3136a DS |
54 | # |
55 | # As a special exception, the respective Autoconf Macro's copyright owner | |
56 | # gives unlimited permission to copy, distribute and modify the configure | |
57 | # scripts that are the output of Autoconf when processing the Macro. You | |
58 | # need not follow the terms of the GNU General Public License when using | |
59 | # or distributing such scripts, even though portions of the text of the | |
60 | # Macro appear in them. The GNU General Public License (GPL) does govern | |
61 | # all other use of the material that constitutes the Autoconf Macro. | |
62 | # | |
63 | # This special exception to the GPL applies to versions of the Autoconf | |
64 | # Macro released by the Autoconf Archive. When you make and distribute a | |
65 | # modified version of the Autoconf Macro, you may extend this special | |
66 | # exception to the GPL to apply to your modified version as well. | |
67 | ||
ab3c863f | 68 | #serial 15 |
24a3136a DS |
69 | |
70 | AC_DEFUN([AX_PKG_SWIG],[ | |
6e5d9dfa MJ |
71 | # Find path to the "swig" executable. |
72 | AC_PATH_PROGS([SWIG],[swig swig3.0 swig2.0]) | |
24a3136a DS |
73 | if test -z "$SWIG" ; then |
74 | m4_ifval([$3],[$3],[:]) | |
ab3c863f SM |
75 | elif test -z "$1" ; then |
76 | m4_ifval([$2],[$2],[:]) | |
77 | else | |
24a3136a DS |
78 | AC_MSG_CHECKING([SWIG version]) |
79 | [swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`] | |
80 | AC_MSG_RESULT([$swig_version]) | |
81 | if test -n "$swig_version" ; then | |
82 | # Calculate the required version number components | |
83 | [required=$1] | |
84 | [required_major=`echo $required | sed 's/[^0-9].*//'`] | |
85 | if test -z "$required_major" ; then | |
86 | [required_major=0] | |
87 | fi | |
ab3c863f | 88 | [required=`echo $required. | sed 's/[0-9]*[^0-9]//'`] |
24a3136a DS |
89 | [required_minor=`echo $required | sed 's/[^0-9].*//'`] |
90 | if test -z "$required_minor" ; then | |
91 | [required_minor=0] | |
92 | fi | |
ab3c863f | 93 | [required=`echo $required. | sed 's/[0-9]*[^0-9]//'`] |
24a3136a DS |
94 | [required_patch=`echo $required | sed 's/[^0-9].*//'`] |
95 | if test -z "$required_patch" ; then | |
96 | [required_patch=0] | |
97 | fi | |
98 | # Calculate the available version number components | |
99 | [available=$swig_version] | |
100 | [available_major=`echo $available | sed 's/[^0-9].*//'`] | |
101 | if test -z "$available_major" ; then | |
102 | [available_major=0] | |
103 | fi | |
104 | [available=`echo $available | sed 's/[0-9]*[^0-9]//'`] | |
105 | [available_minor=`echo $available | sed 's/[^0-9].*//'`] | |
106 | if test -z "$available_minor" ; then | |
107 | [available_minor=0] | |
108 | fi | |
109 | [available=`echo $available | sed 's/[0-9]*[^0-9]//'`] | |
110 | [available_patch=`echo $available | sed 's/[^0-9].*//'`] | |
111 | if test -z "$available_patch" ; then | |
112 | [available_patch=0] | |
113 | fi | |
114 | # Convert the version tuple into a single number for easier comparison. | |
115 | # Using base 100 should be safe since SWIG internally uses BCD values | |
116 | # to encode its version number. | |
117 | required_swig_vernum=`expr $required_major \* 10000 \ | |
118 | \+ $required_minor \* 100 \+ $required_patch` | |
119 | available_swig_vernum=`expr $available_major \* 10000 \ | |
120 | \+ $available_minor \* 100 \+ $available_patch` | |
121 | ||
122 | if test $available_swig_vernum -lt $required_swig_vernum; then | |
123 | AC_MSG_WARN([SWIG version >= $1 is required. You have $swig_version.]) | |
124 | SWIG='' | |
125 | m4_ifval([$3],[$3],[]) | |
126 | else | |
127 | AC_MSG_CHECKING([for SWIG library]) | |
ab3c863f | 128 | SWIG_LIB=`$SWIG -swiglib | tr '\r\n' ' '` |
24a3136a DS |
129 | AC_MSG_RESULT([$SWIG_LIB]) |
130 | m4_ifval([$2],[$2],[]) | |
131 | fi | |
132 | else | |
133 | AC_MSG_WARN([cannot determine SWIG version]) | |
134 | SWIG='' | |
135 | m4_ifval([$3],[$3],[]) | |
136 | fi | |
137 | fi | |
138 | AC_SUBST([SWIG_LIB]) | |
139 | ]) |