llvm-16 fails to build on 10.8.5: error: aligned deallocation function of type 'void (void *, std::align_val_t) noexcept' is only available on macOS 10.13 or newer

[barracuda156]

Why was it even set as the default for systems which do not support it?

[ 91%] Building CXX object libcxx/src/CMakeFiles/cxx_shared.dir/barrier.cpp.o
cd /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/runtimes/runtimes-bins/libcxx/src && /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/./bin/clang++ --target=x86_64-apple-darwin12.6.0 -DLIBCXX_BUILDING_LIBCXXABI -D_LIBCPP_BUILDING_LIBRARY -D_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxxabi/include -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wno-comment -O3 -DNDEBUG -std=c++20 -mmacosx-version-min=10.8 -fPIC -nostdinc++ -MD -MT libcxx/src/CMakeFiles/cxx_shared.dir/barrier.cpp.o -MF CMakeFiles/cxx_shared.dir/barrier.cpp.o.d -o CMakeFiles/cxx_shared.dir/barrier.cpp.o -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:13:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/barrier:52:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__thread/timed_backoff_policy.h:17:
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:540:51: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::hours operator""h(unsigned long long __h)
                                                  ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:545:82: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, ratio<3600,1>> operator""h(long double __h)
                                                                                 ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:551:53: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::minutes operator""min(unsigned long long __m)
                                                    ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:556:80: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, ratio<60,1>> operator""min(long double __m)
                                                                               ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:562:53: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::seconds operator""s(unsigned long long __s)
                                                    ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:567:67: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double> operator""s(long double __s)
                                                                  ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:573:58: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::milliseconds operator""ms(unsigned long long __ms)
                                                         ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:578:74: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, milli> operator""ms(long double __ms)
                                                                         ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:584:58: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::microseconds operator""us(unsigned long long __us)
                                                         ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:589:74: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, micro> operator""us(long double __us)
                                                                         ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:595:57: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::nanoseconds operator""ns(unsigned long long __ns)
                                                        ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__chrono/duration.h:600:73: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, nano> operator""ns(long double __ns)
                                                                        ^
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:14:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/thread:90:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__mutex_base:20:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/system_error:154:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string:576:
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string_view:985:29: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string_view<char> operator "" sv(const char *__str, size_t __len) _NOEXCEPT
                            ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string_view:992:32: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string_view<wchar_t> operator "" sv(const wchar_t *__str, size_t __len) _NOEXCEPT
                               ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string_view:1000:32: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string_view<char8_t> operator "" sv(const char8_t *__str, size_t __len) _NOEXCEPT
                               ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string_view:1007:33: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string_view<char16_t> operator "" sv(const char16_t *__str, size_t __len) _NOEXCEPT
                                ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string_view:1013:33: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string_view<char32_t> operator "" sv(const char32_t *__str, size_t __len) _NOEXCEPT
                                ^
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:14:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/thread:90:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__mutex_base:20:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/system_error:154:
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string:4572:24: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string<char> operator "" s( const char *__str, size_t __len )
                       ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string:4579:27: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string<wchar_t> operator "" s( const wchar_t *__str, size_t __len )
                          ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string:4587:27: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string<char8_t> operator "" s(const char8_t *__str, size_t __len)
                          ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string:4594:28: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string<char16_t> operator "" s( const char16_t *__str, size_t __len )
                           ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/string:4600:28: warning: user-defined literal suffixes not starting with '_' are reserved [-Wuser-defined-literals]
    basic_string<char32_t> operator "" s( const char32_t *__str, size_t __len )
                           ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:37:43: error: aligned allocation function of type 'void *(std::size_t, std::align_val_t)' is only available on macOS 10.13 or newer
        __state = unique_ptr<__state_t[]>(new __state_t[__count]);
                                          ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:37:43: note: if you supply your own aligned allocation functions, use -faligned-allocation to silence this diagnostic
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:37:43: error: aligned deallocation function of type 'void (void *, std::align_val_t) noexcept' is only available on macOS 10.13 or newer
        __state = unique_ptr<__state_t[]>(new __state_t[__count]);
                                          ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:37:43: note: if you supply your own aligned allocation functions, use -faligned-allocation to silence this diagnostic
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:13:
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/barrier:51:
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__memory/unique_ptr.h:91:5: error: aligned deallocation function of type 'void (void *, std::align_val_t) noexcept' is only available on macOS 10.13 or newer
    delete[] __ptr;
    ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__memory/unique_ptr.h:504:7: note: in instantiation of function template specialization 'std::default_delete<std::__barrier_algorithm_base::__state_t[]>::operator()<std::__barrier_algorithm_base::__state_t>' requested here
      __ptr_.second()(__tmp);
      ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__memory/unique_ptr.h:460:75: note: in instantiation of member function 'std::unique_ptr<std::__barrier_algorithm_base::__state_t[]>::reset' requested here
  _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX23 ~unique_ptr() { reset(); }
                                                                          ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/libcxx/src/barrier.cpp:33:5: note: in instantiation of member function 'std::unique_ptr<std::__barrier_algorithm_base::__state_t[]>::~unique_ptr' requested here
    __barrier_algorithm_base(ptrdiff_t& __expected)
    ^
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include/c++/v1/__memory/unique_ptr.h:91:5: note: if you supply your own aligned allocation functions, use -faligned-allocation to silence this diagnostic
    delete[] __ptr;
    ^
22 warnings and 3 errors generated.
make[5]: *** [libcxx/src/CMakeFiles/cxx_shared.dir/barrier.cpp.o] Error 1
make[5]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/runtimes/runtimes-bins'
make[4]: *** [libcxx/src/CMakeFiles/cxx_shared.dir/all] Error 2
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make[2]: *** [runtimes/runtimes-stamps/runtimes-build] Error 2
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make[1]: *** [runtimes/CMakeFiles/runtimes.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 92%] Building CXX object tools/clang/tools/extra/clang-tidy/hicpp/CMakeFiles/obj.clangTidyHICPPModule.dir/SignedBitwiseCheck.cpp.o
cd /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/tools/clang/tools/extra/clang-tidy/hicpp && /opt/local/bin/clang++-mp-14 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/tools/clang/tools/extra/clang-tidy/hicpp -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/clang-tools-extra/clang-tidy/hicpp -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/tools/clang/tools/extra/clang-tidy -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/clang/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/tools/clang/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/llvm/include -pipe -Os -DNDEBUG -D__DISABLE_MP_LEGACY_SUPPORT_SYSCONF_WRAP__=1 -D__DISABLE_MP_LEGACY_SUPPORT_REALPATH_WRAP__=1 -isystem/opt/local/include/LegacySupport -I/opt/local/include -stdlib=libc++ -isysroot/ -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17 -arch x86_64 -arch i386 -mmacosx-version-min=10.8  -fno-exceptions -MD -MT tools/clang/tools/extra/clang-tidy/hicpp/CMakeFiles/obj.clangTidyHICPPModule.dir/SignedBitwiseCheck.cpp.o -MF CMakeFiles/obj.clangTidyHICPPModule.dir/SignedBitwiseCheck.cpp.o.d -o CMakeFiles/obj.clangTidyHICPPModule.dir/SignedBitwiseCheck.cpp.o -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/llvm-project-16.0.6.src/clang-tools-extra/clang-tidy/hicpp/SignedBitwiseCheck.cpp
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[ 92%] Built target obj.clangTidyHICPPModule
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_llvm-16/clang-16/work/build'
make: *** [all] Error 2