-# Icinga 2
-# Copyright (C) 2012-2018 Icinga Development Team (https://icinga.com)
+# Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+
#
-# 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, write to the Free Software Foundation
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
-
# Install $src into directory $dest - usually only used for config files
#
# * similar to install() a non absolute path is prefixed with CMAKE_INSTALL_PREFIX on runtime
# * DESTDIR is prefixed as well
#
# also see https://cmake.org/cmake/help/latest/command/install.html
+
function(install_if_not_exists src dest)
if(NOT IS_ABSOLUTE "${src}")
set(src "${CMAKE_CURRENT_SOURCE_DIR}/${src}")