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cmake_minimum_required(VERSION 2.8.3)
if (ENTITYX_USE_CPP11_STDLIB)
add_definitions(-DGTEST_USE_OWN_TR1_TUPLE=1)
set(OLD_CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
check_cxx_source_compiles(
"
#include <memory>
int main() {
std::shared_ptr<int>();
}
"
ENTITYX_HAVE_CXX11_STDLIB
)
if (NOT ENTITYX_HAVE_CXX11_STDLIB)
message("-- Not using -stdlib=libc++ (test failed to build)")
set(CMAKE_CXX_FLAGS "${OLD_CMAKE_CXX_FLAGS}")
else ()
message("-- Using -stdlib=libc++")
endif ()
else ()
message("-- Using default stdlib (try -DENTITYX_USE_CPP11_STDLIB=1 to use -stdlib=libc++)")
endif ()
check_cxx_source_compiles(
"
#include <memory>
int main() { std::shared_ptr<int>(); }
"
ENTITYX_HAVE_STD_SHARED_PTR
)
check_cxx_source_compiles(
"
#include <boost/shared_ptr.hpp>
int main() { boost::shared_ptr<int>(); }
"
ENTITYX_HAVE_BOOST_SHARED_PTR
)
if (ENTITYX_HAVE_STD_SHARED_PTR AND ENTITYX_USE_STD_SHARED_PTR)
message("-- Using std::shared_ptr<T>")
else()
if (ENTITYX_USE_STD_SHARED_PTR)
message("-- Using boost::shared_ptr<T> (std::shared_ptr<T> could not be used)")
else()
message("-- Using boost::shared_ptr<T> (try -DENTITYX_USE_STD_SHARED_PTR=1 to use std::shared_ptr<T>)")
endif()
endif()
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