Compile with C++0x/11 if available
We want to compile with the -std=c++0x since DUNE uses this settings and we need to use the same ABI as that one if we are going to link with it. Find module is a copy of the one in cmake/modules in (the cmake branch of) dune-common.
This commit is contained in:
Roland Kaufmann
parent
ddd9728f5e
commit
9a1b24c621
@ -12,6 +12,9 @@ set (opm-core_INCLUDE_DIRS "${PROJECT_SOURCE_DIR}")
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# additional search modules
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list (APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/Modules")
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# compile with C++0x/11 support if available
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find_package (CXX11Features REQUIRED)
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# put libraries in lib/
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set (CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/lib")
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@ -43,6 +46,9 @@ list (APPEND opm-core_CONFIG_VARS
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"HAVE_DYNAMIC_BOOST_TEST"
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"HAVE_ERT"
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"HAVE_SUITESPARSE_UMFPACK_H"
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"/* C++0x/11 support */"
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"HAVE_NULLPTR"
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"HAVE_STATIC_ASSERT"
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)
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configure_vars (
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FILE "${PROJECT_BINARY_DIR}/config.h"
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267
cmake/Modules/FindCXX11Features.cmake
Normal file
267
cmake/Modules/FindCXX11Features.cmake
Normal file
@ -0,0 +1,267 @@
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#
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# Module that checks for supported C++11 (former C++0x) features.
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#
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# Sets the follwing variable:
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#
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# HAVE_NULLPTR True if nullptr is available
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# HAVE_ARRAY True if header <array> and fill() are available
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# HAVE_ATTRIBUTE_ALWAYS_INLINE True if attribute always inline is supported
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# HAS_ATTRIBUTE_UNUSED True if attribute unused is supported
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# HAS_ATTRIBUTE_DEPRECATED True if attribute deprecated is supported
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# HAS_ATTRIBUTE_DEPRECATED_MSG True if attribute deprecated("msg") is supported
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# HAVE_INTEGRAL_CONSTANT True if compiler supports integral_constant
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# HAVE_STATIC_ASSERT True if static_assert is available
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# HAVE_VARIADIC_TEMPLATES True if variadic templates are supprt
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# HAVE_VARIADIC_CONSTRUCTOR_SFINAE True if variadic constructor sfinae is supported
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# HAVE_RVALUE_REFERENCES True if rvalue references are supported
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# test for C++11 flags
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include(TestCXXAcceptsFlag)
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# try to use compiler flag -std=c++11
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CHECK_CXX_ACCEPTS_FLAG("-std=c++11" CXX_FLAG_CXX11)
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if(CXX_FLAG_CXX11)
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set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -std=c++11")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ")
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -std=c++11 ")
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set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} -std=c++11 ")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++11 ")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -std=c++11 ")
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set(CXX_STD0X_FLAGS "-std=c++11")
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else()
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# try to use compiler flag -std=c++0x for older compilers
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CHECK_CXX_ACCEPTS_FLAG("-std=c++0x" CXX_FLAG_CXX0X)
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if(CXX_FLAG_CXX0X)
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set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -std=c++0x" )
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x ")
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -std=c++0x ")
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set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} -std=c++0x ")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++0x ")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -std=c++0x ")
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set(CXX_STD0X_FLAGS "-std=c++0x")
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endif(CXX_FLAG_CXX0X)
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endif(CXX_FLAG_CXX11)
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# perform tests
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include(CheckCXXSourceCompiles)
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# nullptr
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CHECK_CXX_SOURCE_COMPILES("
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int main(void)
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{
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char* ch = nullptr;
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return 0;
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}
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" HAVE_NULLPTR
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)
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# array and fill
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CHECK_CXX_SOURCE_COMPILES("
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#include <array>
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int main(void)
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{
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std::array<int,2> a;
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a.fill(9);
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return 0;
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}
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" HAVE_ARRAY
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)
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# Check whether if std::integral_constant< T, v > is supported and casts into T
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CHECK_CXX_SOURCE_COMPILES("
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#include <type_traits>
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void f( int ){}
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int main(void){
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f( std::integral_constant< int, 42 >() );
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}
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" HAVE_INTEGRAL_CONSTANT
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)
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# __attribute__((always_inline))
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CHECK_CXX_SOURCE_COMPILES("
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void __attribute__((always_inline)) foo(void) {}
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int main(void)
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{
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foo();
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return 0;
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};
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" HAVE_ATTRIBUTE_ALWAYS_INLINE
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)
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# __attribute__((unused))
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CHECK_CXX_SOURCE_COMPILES("
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int main(void)
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{
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int __attribute__((unused)) foo;
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return 0;
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};
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" HAS_ATTRIBUTE_UNUSED
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)
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# __attribute__((deprecated))
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CHECK_CXX_SOURCE_COMPILES("
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#define DEP __attribute__((deprecated))
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class bar
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{
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bar() DEP;
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};
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class peng { } DEP;
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template <class T>
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class t_bar
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{
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t_bar() DEP;
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};
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template <class T>
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class t_peng {
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t_peng() {};
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} DEP;
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void foo() DEP;
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void foo() {};
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int main(void)
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{
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return 0;
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};
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" HAS_ATTRIBUTE_DEPRECATED
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)
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# __attribute__((deprecated("msg")))
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CHECK_CXX_SOURCE_COMPILES("
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#define DEP __attribute__((deprecated(\"message\")))
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class bar {
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bar() DEP;
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};
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class peng { } DEP;
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template <class T>
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class t_bar
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{
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t_bar() DEP;
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};
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template <class T>
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class t_peng
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{
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t_peng() {};
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} DEP;
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void foo() DEP;
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void foo() {};
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int main(void)
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{
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return 0;
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};
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" HAS_ATTRIBUTE_DEPRECATED_MSG
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)
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# static assert
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CHECK_CXX_SOURCE_COMPILES("
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int main(void)
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{
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static_assert(true,\"MSG\");
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return 0;
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}
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" HAVE_STATIC_ASSERT
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)
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# variadic template support
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CHECK_CXX_SOURCE_COMPILES("
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#include <cassert>
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template<typename... T>
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int addints(T... x);
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int add_ints()
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{
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return 0;
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}
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template<typename T1, typename... T>
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int add_ints(T1 t1, T... t)
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{
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return t1 + add_ints(t...);
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}
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int main(void)
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{
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assert( 5 == add_ints(9,3,-5,-2) );
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return 0;
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}
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" HAVE_VARIADIC_TEMPLATES
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)
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# SFINAE on variadic template constructors within template classes
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CHECK_CXX_SOURCE_COMPILES("
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#include <functional>
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template<typename... U>
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struct A
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{
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template<typename... T,
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typename = typename std::enable_if<(sizeof...(T) < 2)>::type
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>
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A(T... t)
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: i(1)
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{}
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template<typename... T,
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typename = typename std::enable_if<(sizeof...(T) >= 2)>::type,
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typename = void
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>
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A(T... t)
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: i(-1)
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{}
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A()
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: i(1)
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{}
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int i;
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};
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int main(void)
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{
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return (A<int>().i + A<int>(2).i + A<int>(\"foo\",3.4).i + A<int>(8,'a',A<int>()).i == 0 ? 0 : 1);
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}
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" HAVE_VARIADIC_CONSTRUCTOR_SFINAE
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)
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# rvalue references
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CHECK_CXX_SOURCE_COMPILES("
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#include <cassert>
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#include <utility>
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int foo(int&& x) { return 1; }
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int foo(const int& x) { return -1; }
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template<typename T>
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int forward(T&& x)
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{
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return foo(std::forward<T>(x));
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}
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int main(void)
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{
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int i = 0;
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assert( forward(i) + forward(int(2)) == 0);
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return 0;
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}
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" HAVE_RVALUE_REFERENCES
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)
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include(CheckIncludeFile)
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include(CheckIncludeFileCXX)
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# Search for some tr1 headers
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foreach(_HEADER tuple tr1/tuple type_traits tr1/type_traits)
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string(REPLACE "/" "_" _HEADER_VAR ${_HEADER})
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string(TOUPPER ${_HEADER_VAR} _HEADER_VAR )
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check_include_file_cxx(${_HEADER} "HAVE_${_HEADER_VAR}")
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endforeach(_HEADER tuple tr1/tuple tr1/type_traits)
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