# ===========================================================================
-# http://autoconf-archive.cryp.to/ac_pkg_swig.html
+# http://www.gnu.org/software/autoconf-archive/ax_pkg_swig.html
# ===========================================================================
#
# SYNOPSIS
#
-# AC_PROG_SWIG([major.minor.micro])
+# 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 you
-# should call SWIG via $(SWIG). 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.)
+# 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.
#
-# If the version argument is given (e.g. 1.3.17), AC_PROG_SWIG checks that
-# the swig package is this version number or higher.
+# 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.
#
-# In configure.in, use as:
-#
-# AC_PROG_SWIG(1.3.17)
-# SWIG_ENABLE_CXX
-# SWIG_MULTI_MODULE_SUPPORT
-# SWIG_PYTHON
+# As usual, action-if-found is executed if SWIG is found, otherwise
+# action-if-not-found is executed.
#
-# LAST MODIFICATION
+# In configure.in, use as:
#
-# 2008-04-12
+# 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
#
-# COPYLEFT
+# LICENSE
#
# Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de>
# Copyright (c) 2008 Alan W. Irwin <irwin@beluga.phys.uvic.ca>
# Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net>
# Copyright (c) 2008 Andrew Collier <colliera@ukzn.ac.za>
+# 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
# 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 Macro 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.
+# 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.
-AC_DEFUN([AC_PROG_SWIG],[
- AC_PATH_PROG([SWIG],[swig])
+#serial 8
+
+AC_DEFUN([AX_PKG_SWIG],[
+ # Ubuntu has swig 2.0 as /usr/bin/swig2.0
+ AC_PATH_PROGS([SWIG],[swig swig2.0])
if test -z "$SWIG" ; then
- AC_MSG_WARN([cannot find 'swig' program. You should look at http://www.swig.org])
- SWIG='echo "Error: SWIG is not installed. You should look at http://www.swig.org" ; false'
+ m4_ifval([$3],[$3],[:])
elif test -n "$1" ; then
- AC_MSG_CHECKING([for SWIG version])
+ AC_MSG_CHECKING([SWIG version])
[swig_version=`$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
if test -z "$available_patch" ; then
[available_patch=0]
fi
- if test $available_major -ne $required_major \
- -o $available_minor -ne $required_minor \
- -o $available_patch -lt $required_patch ; then
- AC_MSG_WARN([SWIG version >= $1 is required. You have $swig_version. You should look at http://www.swig.org])
- SWIG='echo "Error: SWIG version >= $1 is required. You have '"$swig_version"'. You should look at http://www.swig.org" ; false'
+ # 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],[$3],[])
else
- AC_MSG_NOTICE([SWIG executable is '$SWIG'])
+ AC_MSG_CHECKING([for SWIG library])
SWIG_LIB=`$SWIG -swiglib`
- AC_MSG_NOTICE([SWIG library directory is '$SWIG_LIB'])
+ AC_MSG_RESULT([$SWIG_LIB])
+ m4_ifval([$2],[$2],[])
fi
else
AC_MSG_WARN([cannot determine SWIG version])
- SWIG='echo "Error: Cannot determine SWIG version. You should look at http://www.swig.org" ; false'
+ SWIG=''
+ m4_ifval([$3],[$3],[])
fi
fi
AC_SUBST([SWIG_LIB])
if test `$PYTHON -c "import sys; \
ver = sys.version.split()[[0]]; \
print(ver >= '2.4.0')"` = "False"; then
- AC_ERROR([Python version >= 2.4.0 is required])
+ AC_MSG_ERROR([Python version >= 2.4.0 is required])
fi
# Have Python
AC_DEFINE(HAVE_PYTHON,1,[Define if you have Python libraries and header files.])
ldns_have_python=yes
fi
- # pass additional Python 3 option to swig
+ # pass additional Python 3 option to SWIG
if test `$PYTHON -c "import sys; \
ver = sys.version.split()[[0]]; \
- print(ver >= '3.0.0')"` = "True"; then
+ print(ver >= '3')"` = "True"; then
AC_SUBST(SWIGPY3, ["-py3 -DPY3"])
fi
- # check for swig
+ # check for SWIG
if test x_$ldns_have_python != x_no; then
- sinclude(ac_pkg_swig.m4)
- AC_PROG_SWIG
+ sinclude(ax_pkg_swig.m4)
+
+ # check for >=SWIG-2.0.4 if Python 3.2 used
+ if test `$PYTHON -c "import sys; \
+ ver = sys.version.split()[[0]]; \
+ print(ver >= '3.2')"` = "True"; then
+ AX_PKG_SWIG(2.0.4, [], [AC_MSG_ERROR([SWIG-2.0.4 is required to build pyldns for Python 3.2 and greater.])])
+ else
+ AX_PKG_SWIG
+ fi
+
if test ! -x "$SWIG"; then
- AC_ERROR([failed to find swig tool, install it, or do not build pyldns])
+ AC_MSG_ERROR([failed to find SWIG tool, install it, or do not build pyldns])
else
- AC_DEFINE(HAVE_SWIG,1,[Define if you have Swig libraries and header files.])
+ AC_DEFINE(HAVE_SWIG,1,[Define if you have SWIG libraries and header files.])
AC_SUBST(PYLDNS, "pyldns")
AC_SUBST(swig, "$SWIG")
fi
else
- AC_MSG_RESULT([*** don't have Python, skipping Swig, no pyldns ***]) # '
+ AC_MSG_RESULT([*** don't have Python, skipping SWIG, no pyldns ***]) # '
fi
# xtra cflags for pyldns
projects / thirdparty / ldns.git / commitdiff
