added unbound to external deps

1 files changed, 122 insertions, 0 deletions

diff --git a/external/unbound/ac_pkg_swig.m4 b/external/unbound/ac_pkg_swig.m4
new file mode 100644
index 000000000..738f69d45
--- /dev/null
+++ b/external/unbound/ac_pkg_swig.m4
@@ -0,0 +1,122 @@
+# ===========================================================================
+#              http://autoconf-archive.cryp.to/ac_pkg_swig.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AC_PROG_SWIG([major.minor.micro])
+#
+# 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.)
+#
+#   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.
+#
+#   In configure.in, use as:
+#
+#     AC_PROG_SWIG(1.3.17)
+#     SWIG_ENABLE_CXX
+#     SWIG_MULTI_MODULE_SUPPORT
+#     SWIG_PYTHON
+#
+# LAST MODIFICATION
+#
+#   2008-04-12
+#
+# COPYLEFT
+#
+#   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>
+#
+#   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 <http://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 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.
+
+AC_DEFUN([AC_PROG_SWIG],[
+        AC_PATH_PROG([SWIG],[swig])
+        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'
+        elif test -n "$1" ; then
+                AC_MSG_CHECKING([for SWIG version])
+                [swig_version=`$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
+                        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'
+                        else
+                                AC_MSG_NOTICE([SWIG executable is '$SWIG'])
+                                SWIG_LIB=`$SWIG -swiglib`
+                                AC_MSG_NOTICE([SWIG library directory is '$SWIG_LIB'])
+                        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'
+                fi
+        fi
+        AC_SUBST([SWIG_LIB])
+])