Merge branch 'fix-missing-prereq-net-dns' into 'master'

Fix missing prereq Net::DNS in couple of tests

See merge request ISCdotORG/bind9!18

(cherry picked from commit 3a181cfbb00d0a89c933631a1a1054969b3d5a1b)

00e6020d Fix missing Net::DNS prerequisites in tests
a5d52368 Add -f to autoreconf call from autogen.sh

autogen.sh

@@ -7,4 +7,4 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 # Run this script after modifying configure.in to generate configure
-autoreconf -i
+autoreconf -fi

bin/tests/system/digdelv/prereq.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Copyright (C) 2017  Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+. ../conf.sh
+
+if ! $PERL -e 'use Net::DNS;' 2>/dev/null; then
+    echoinfo "I:This test requires the Net::DNS library." >&2
+    exit 1
+fi
+
+exit 0

bin/tests/system/fetchlimit/prereq.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# Copyright (C) 2017  Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+if ! $PERL -e 'use Net::DNS;' 2>/dev/null; then
+    echoinfo "I:This test requires the Net::DNS library." >&2
+    exit 1
+fi
+
+exit 0
+

bin/tests/system/rpzrecurse/prereq.sh

@@ -6,8 +6,12 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-SYSTEMTESTTOP=..
-. $SYSTEMTESTTOP/conf.sh
+. ../conf.sh
+
+if ! $PERL -e 'use Net::DNS;' 2>/dev/null; then
+    echoinfo "I:This test requires the Net::DNS library." >&2
+    exit 1
+fi
 
 ret=0
 $FEATURETEST --rpz-nsdname || ret=1

bin/tests/system/zero/prereq.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+#
+# Copyright (C) 2017  Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+if ! $PERL -e 'use Net::DNS;' 2>/dev/null; then
+    echoinfo "I:This test requires the Net::DNS library." >&2
+    exit 1
+fi
+
+exit 0