f47cbd50e9
- Move CXX flags stuff into build/cxx_flags.cmake. - include CMake modules where they're used. - Add ENABLE_WERROR flag-- enables warnings as errors. - Add -Wshorten-64-to-32 and -Wnarrowing to CXX flags. Change-Id: I5d93a39a3eff6ae81f9e094927b8f0cb9f36bbb0
38 lines
1.2 KiB
CMake
38 lines
1.2 KiB
CMake
## Copyright (c) 2016 The WebM project authors. All Rights Reserved.
|
|
##
|
|
## Use of this source code is governed by a BSD-style license
|
|
## that can be found in the LICENSE file in the root of the source
|
|
## tree. An additional intellectual property rights grant can be found
|
|
## in the file PATENTS. All contributing project authors may
|
|
## be found in the AUTHORS file in the root of the source tree.
|
|
cmake_minimum_required(VERSION 3.2)
|
|
|
|
include(CheckCXXCompilerFlag)
|
|
|
|
function (add_cxx_flag_if_supported cxx_flag)
|
|
unset(FLAG_SUPPORTED CACHE)
|
|
CHECK_CXX_COMPILER_FLAG("${cxx_flag}" FLAG_SUPPORTED)
|
|
if (FLAG_SUPPORTED)
|
|
set(CMAKE_CXX_FLAGS "${cxx_flag} ${CMAKE_CXX_FLAGS}" CACHE STRING "" FORCE)
|
|
endif ()
|
|
endfunction ()
|
|
|
|
# Set warning levels.
|
|
if (MSVC)
|
|
add_cxx_flag_if_supported("/W4")
|
|
# Disable MSVC warnings that suggest making code non-portable.
|
|
add_cxx_flag_if_supported("/wd4996")
|
|
if (ENABLE_WERROR)
|
|
add_cxx_flag_if_supported("/WX")
|
|
endif ()
|
|
else ()
|
|
add_cxx_flag_if_supported("-Wall")
|
|
add_cxx_flag_if_supported("-Wextra")
|
|
add_cxx_flag_if_supported("-Wno-deprecated")
|
|
add_cxx_flag_if_supported("-Wshorten-64-to-32")
|
|
add_cxx_flag_if_supported("-Wnarrowing")
|
|
if (ENABLE_WERROR)
|
|
add_cxx_flag_if_supported("-Werror")
|
|
endif ()
|
|
endif ()
|