[lttng-tools.git] / m4 / ax_pkg_swig.m4

# ===========================================================================
#       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])
])
Commit	Line	Data
36907cb5	1	# ===========================================================================
6333b87b	2	# https://www.gnu.org/software/autoconf-archive/ax_pkg_swig.html
36907cb5 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>
6333b87b	35	# Copyright (c) 2008 Alan W. Irwin
36907cb5	36	# Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net>
6333b87b	37	# Copyright (c) 2008 Andrew Collier
36907cb5 DS	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
6333b87b	51	# with this program. If not, see <https://www.gnu.org/licenses/>.
36907cb5 DS	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
6333b87b	66	#serial 13
36907cb5 DS	67
36907cb5 DS	68	AC_DEFUN([AX_PKG_SWIG],[
6333b87b MJ	69	# Find path to the "swig" executable.
6333b87b MJ	70	AC_PATH_PROGS([SWIG],[swig swig3.0 swig2.0])
36907cb5 DS	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	])