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cmake: move c++11 checks into build/cxx11_tests.cmake.

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Change-Id: I300552a14412dc664e7e5f1a4d1a90466e82593d
This commit is contained in:
Tom Finegan
2016-03-16 12:16:40 -07:00
parent 367248817e
commit 5fdb386183
2 changed files with 104 additions and 92 deletions
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93
CMakeLists.txt
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@@ -25,98 +25,7 @@ set(GTEST_SRC_DIR "${LIBWEBM_SRC_DIR}/../googletest" CACHE PATH
set(GTEST_BUILD_DIR "${CMAKE_BINARY_DIR}/googletest_build")
if (ENABLE_TESTS OR ENABLE_WEBMTS)
if (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" OR
CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR
CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
CHECK_CXX_COMPILER_FLAG("-std=c++11" HAVE_CXX11)
if (HAVE_CXX11)
set(CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}" CACHE STRING "" FORCE)
endif ()
endif ()
endif ()
# C++11 compile tests.
# TODO(tomfinegan): Move the C++11 tests into a cmake include.
if (MSVC OR HAVE_CXX11)
# std::unique_ptr
check_cxx_source_compiles("
#include <memory>
int main(int argc, const char* argv[]) {
std::unique_ptr<int> ptr;
(void)ptr;
return 0;
}"
HAVE_UNIQUE_PTR)
# default member values
check_cxx_source_compiles("
struct Foo {
int a = 0;
};
int main(int argc, const char* argv[]) {
Foo bar;
(void)bar;
return 0;
}"
HAVE_DEFAULT_MEMBER_VALUES)
# defaulted methods
check_cxx_source_compiles("
struct Foo {
Foo() = default;
~Foo() = default;
};
int main(int argc, const char* argv[]) {
Foo bar;
(void)bar;
return 0;
}"
HAVE_DEFAULTED_MEMBER_FUNCTIONS)
# deleted methods
check_cxx_source_compiles("
struct Foo {
Foo() {}
Foo(const Foo&) = delete;
};
int main(int argc, const char* argv[]) {
Foo bar;
(void)bar;
return 0;
}"
HAVE_DELETED_MEMBER_FUNCTIONS)
# auto&
check_cxx_source_compiles("
int main(int argc, const char* argv[]) {
int a;
auto& b = a;
(void)b;
return 0;
}"
HAVE_AUTO_REF)
# ranged for
check_cxx_source_compiles("
int main(int argc, const char* argv[]) {
int a[4];
for (int& b : a) {
b = 0;
}
return 0;
}"
HAVE_RANGED_FOR)
endif ()
if (NOT HAVE_UNIQUE_PTR
OR NOT HAVE_DEFAULT_MEMBER_VALUES
OR NOT HAVE_DEFAULTED_MEMBER_FUNCTIONS
OR NOT HAVE_DELETED_MEMBER_FUNCTIONS
OR NOT HAVE_AUTO_REF
OR NOT HAVE_RANGED_FOR)
set(ENABLE_TESTS OFF)
set(ENABLE_WEBMTS OFF)
message(WARNING "C++11 feature(s) not supported, tests and webmts disabled.")
include("${CMAKE_CURRENT_SOURCE_DIR}/build/cxx11_tests.cmake")
endif ()
# Turn up the warning levels.