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set CMake policy CMP0075 if it exists

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Otherwise newer versions of CMake are throwing a warning.
This commit is contained in:
Steve Markgraf 2020-01-19 16:56:51 +01:00
parent b5af355b1d
commit be2e4f899a
1 changed files with 11 additions and 8 deletions
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19
CMakeLists.txt
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@ -1,21 +1,19 @@
# Copyright 2012 OSMOCOM Project
# Copyright 2012-2020 Osmocom Project
#
# This file is part of rtl-sdr
#
# GNU Radio is free software; you can redistribute it and/or modify
# 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 3, or (at your option)
# any later version.
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# 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 GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
# along with this program. If not, see <http://www.gnu.org/licenses/>.
########################################################################
@ -24,6 +22,11 @@
cmake_minimum_required(VERSION 2.6)
project(rtlsdr C)
# CMP0075 Include file check macros honor CMAKE_REQUIRED_LIBRARIES
if(POLICY CMP0075)
cmake_policy(SET CMP0075 NEW)
endif()
#select the release build type by default to get optimization flags
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release")