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checked performance of new vector libaries.
Added check for c++11 support on the configure.ac
This commit is contained in:
neo
186
configure
vendored
186
configure
vendored
@@ -633,6 +633,7 @@ BUILD_COMMS_MPI_TRUE
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EGREP
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GREP
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CXXCPP
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HAVE_CXX11
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RANLIB
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OPENMP_CXXFLAGS
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am__fastdepCXX_FALSE
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@@ -3965,6 +3966,191 @@ else
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RANLIB="$ac_cv_prog_RANLIB"
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fi
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ax_cxx_compile_cxx11_required=true
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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ac_success=no
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++11 features by default" >&5
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$as_echo_n "checking whether $CXX supports C++11 features by default... " >&6; }
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if ${ax_cv_cxx_compile_cxx11+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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template <typename T>
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struct check
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{
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static_assert(sizeof(int) <= sizeof(T), "not big enough");
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};
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struct Base {
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virtual void f() {}
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};
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struct Child : public Base {
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virtual void f() override {}
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};
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typedef check<check<bool>> right_angle_brackets;
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int a;
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decltype(a) b;
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typedef check<int> check_type;
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check_type c;
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check_type&& cr = static_cast<check_type&&>(c);
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auto d = a;
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auto l = [](){};
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// Prevent Clang error: unused variable 'l' [-Werror,-Wunused-variable]
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struct use_l { use_l() { l(); } };
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// http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
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// Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function because of this
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namespace test_template_alias_sfinae {
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struct foo {};
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template<typename T>
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using member = typename T::member_type;
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template<typename T>
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void func(...) {}
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template<typename T>
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void func(member<T>*) {}
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void test();
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void test() {
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func<foo>(0);
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}
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}
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_ACEOF
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if ac_fn_cxx_try_compile "$LINENO"; then :
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ax_cv_cxx_compile_cxx11=yes
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else
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ax_cv_cxx_compile_cxx11=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cxx_compile_cxx11" >&5
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$as_echo "$ax_cv_cxx_compile_cxx11" >&6; }
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if test x$ax_cv_cxx_compile_cxx11 = xyes; then
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ac_success=yes
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fi
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if test x$ac_success = xno; then
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for switch in -std=c++11 -std=c++0x +std=c++11; do
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cachevar=`$as_echo "ax_cv_cxx_compile_cxx11_$switch" | $as_tr_sh`
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++11 features with $switch" >&5
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$as_echo_n "checking whether $CXX supports C++11 features with $switch... " >&6; }
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if eval \${$cachevar+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_save_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS $switch"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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template <typename T>
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struct check
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{
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static_assert(sizeof(int) <= sizeof(T), "not big enough");
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};
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struct Base {
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virtual void f() {}
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};
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struct Child : public Base {
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virtual void f() override {}
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};
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typedef check<check<bool>> right_angle_brackets;
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int a;
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decltype(a) b;
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typedef check<int> check_type;
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check_type c;
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check_type&& cr = static_cast<check_type&&>(c);
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auto d = a;
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auto l = [](){};
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// Prevent Clang error: unused variable 'l' [-Werror,-Wunused-variable]
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struct use_l { use_l() { l(); } };
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// http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
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// Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function because of this
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namespace test_template_alias_sfinae {
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struct foo {};
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template<typename T>
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using member = typename T::member_type;
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template<typename T>
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void func(...) {}
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template<typename T>
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void func(member<T>*) {}
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void test();
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void test() {
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func<foo>(0);
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}
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}
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_ACEOF
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if ac_fn_cxx_try_compile "$LINENO"; then :
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eval $cachevar=yes
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else
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eval $cachevar=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CXXFLAGS="$ac_save_CXXFLAGS"
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fi
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eval ac_res=\$$cachevar
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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if eval test x\$$cachevar = xyes; then
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CXXFLAGS="$CXXFLAGS $switch"
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ac_success=yes
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break
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fi
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done
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fi
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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if test x$ax_cxx_compile_cxx11_required = xtrue; then
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if test x$ac_success = xno; then
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as_fn_error $? "*** A compiler with support for C++11 language features is required." "$LINENO" 5
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fi
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else
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if test x$ac_success = xno; then
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HAVE_CXX11=0
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{ $as_echo "$as_me:${as_lineno-$LINENO}: No compiler with C++11 support was found" >&5
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$as_echo "$as_me: No compiler with C++11 support was found" >&6;}
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else
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HAVE_CXX11=1
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$as_echo "#define HAVE_CXX11 1" >>confdefs.h
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fi
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fi
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# Checks for libraries.
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#AX_GCC_VAR_ATTRIBUTE(aligned)
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