Fix #4303. Declare dependencies for ifctester.

src/bsdd/Makefile

@@ -1,3 +1,21 @@
+# bSDD - Python bSDD library
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of bSDD.
+#
+# bSDD is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# bSDD 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with bSDD.  If not, see <http://www.gnu.org/licenses/>.
+
 VERSION:=`date '+%y%m%d'`
 SED:=sed -i
 ifeq ($(UNAME_S),Darwin)