139 lines
3.1 KiB
CMake
139 lines
3.1 KiB
CMake
## Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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##
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## Use of this source code is governed by a BSD-style license
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## that can be found in the LICENSE file in the root of the source
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## tree. An additional intellectual property rights grant can be found
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## in the file PATENTS. All contributing project authors may
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## be found in the AUTHORS file in the root of the source tree.
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cmake_minimum_required(VERSION 3.2)
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if (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" OR
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CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR
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CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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CHECK_CXX_COMPILER_FLAG("-std=c++11" HAVE_CXX11)
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if (HAVE_CXX11)
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set(CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}" CACHE STRING "" FORCE)
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endif ()
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endif ()
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# C++11 compile tests.
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if (MSVC OR HAVE_CXX11)
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# std::unique_ptr
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check_cxx_source_compiles("
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#include <memory>
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int main() {
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std::unique_ptr<int> ptr;
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(void)ptr;
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return 0;
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}"
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HAVE_UNIQUE_PTR)
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# default member values
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check_cxx_source_compiles("
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struct Foo {
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int a = 0;
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};
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int main() {
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Foo bar;
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(void)bar;
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return 0;
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}"
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HAVE_DEFAULT_MEMBER_VALUES)
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# defaulted methods
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check_cxx_source_compiles("
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struct Foo {
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Foo() = default;
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~Foo() = default;
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};
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int main() {
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Foo bar;
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(void)bar;
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return 0;
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}"
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HAVE_DEFAULTED_MEMBER_FUNCTIONS)
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# deleted methods
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check_cxx_source_compiles("
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struct Foo {
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Foo() {}
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Foo(const Foo&) = delete;
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};
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int main() {
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Foo bar;
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(void)bar;
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return 0;
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}"
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HAVE_DELETED_MEMBER_FUNCTIONS)
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# auto&
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check_cxx_source_compiles("
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int main() {
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int a;
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auto& b = a;
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(void)b;
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return 0;
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}"
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HAVE_AUTO_REF)
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# ranged for
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check_cxx_source_compiles("
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int main() {
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int a[4];
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for (int& b : a) {
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b = 0;
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}
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return 0;
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}"
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HAVE_RANGED_FOR)
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# move constructors
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check_cxx_source_compiles("
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struct Foo {
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Foo() {}
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Foo(Foo&&) = default;
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Foo(const Foo&) = delete;
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};
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int main() {
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Foo bar;
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(void)bar;
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return 0;
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}"
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HAVE_MOVE_CONSTRUCTORS)
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# member initializers
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check_cxx_source_compiles("
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struct Foo {
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Foo() {}
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Foo(int a_val, int b_val) : a(a_val), b(b_val) {}
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int a;
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int b;
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};
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struct Bar {
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Bar() {}
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Foo f = Foo(1, 2);
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};
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int main() {
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Bar bar;
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(void)bar;
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return 0;
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}"
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HAVE_MEMBER_INITIALIZERS)
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endif ()
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if (NOT HAVE_UNIQUE_PTR
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OR NOT HAVE_DEFAULT_MEMBER_VALUES
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OR NOT HAVE_DEFAULTED_MEMBER_FUNCTIONS
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OR NOT HAVE_DELETED_MEMBER_FUNCTIONS
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OR NOT HAVE_AUTO_REF
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OR NOT HAVE_RANGED_FOR
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OR NOT HAVE_MOVE_CONSTRUCTORS
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OR NOT HAVE_MEMBER_INITIALIZERS)
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# TODO(tomfinegan): Update settings at the include site instead of in here.
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set(ENABLE_TESTS OFF)
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set(ENABLE_WEBMTS OFF)
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message(WARNING "C++11 feature(s) not supported, tests and webmts disabled.")
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endif ()
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