Upd libc++ to 1 Jun 2022 10c4eec2785a68880c287d36c262d5be3a72a128

[libc++][format] Fixes string-literal formatting.
[libc++] Removes __cpp_lib_monadic_optional.
[libcxx] Temporarily skip Arm configs
[libc++] Reduce the verbosity when running the libc++ Lit configuration
[libc++] Adds __format_string as nasty macro.
[libc++] Use __enable_if_t and is_integral in cstddef
[libc++] Adds missing includes.
[libc++] Minor emscripten changes from downstream
[libc++] Granularize more of <type_traits>
[libc++] Remove unused __functional includes
[libc++] Add various missing _LIBCPP_HIDE_FROM_ABI
[libc++] Use __libcpp_clz for a tighter __log2i function
[libc++] Enable ranges_robust_against* and niebloid tests for implemented ranges algorithms
[libc++] Implement ranges::is_sorted{, _until}
[libc++] Time tests during CI
[libc++] Implement ranges::{all, any, none}_of
[libc++] Remove temporary workaround for existing CMake caches
[libc++] Implement ranges::equal
[libc++] Remove conditional include
[libc++] Use Python subprocess instead of libc++'s own utilities
[libc++] Implement ranges::fill{, _n}
[libc++] Make sure that all headers can be included with modules enabled
[libc++] Rename the generic-singlethreaded CI job to generic-no-threads for consistency
[libc++] Implement ranges::reverse
[libc++] Replace modulus operations in std::seed_seq::generate with conditional checks.
[libc++] type_traits: use __is_core_convertible in __invokable_r.
[libc++] Remove duplicate tests for callable concepts
[libc++] Add ranges::max_element to the synopsis and ADL-proof the __min_element_impl calls
[libc++] Add auto to the list of required extensions in C++03
[libc++] Assume that push_macro and pop_macro are available
[libc++] Always enable the ranges concepts
[libc++] Granularize parts of <type_traits>
[libc++] Improve error messages for disabled modes
[libc++] Override the value of LIBCXX_CXX_ABI in the cache
[libc++] Granularize algorithm benchmarks
[libc++] Enable move semantics for vector in C++03
[libc++][format][5/6] Improve format_to_n.

1 files changed, 2 insertions, 4 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/shared_mutex b/contrib/libs/cxxsupp/libcxx/include/shared_mutex
index 68a2bbae0f5..a089aa9fa81 100644
--- a/contrib/libs/cxxsupp/libcxx/include/shared_mutex
+++ b/contrib/libs/cxxsupp/libcxx/include/shared_mutex
@@ -140,8 +140,8 @@ _LIBCPP_PUSH_MACROS
 #endif
 
 #ifdef _LIBCPP_HAS_NO_THREADS
-#error <shared_mutex> is not supported on this single threaded system
-#else // !_LIBCPP_HAS_NO_THREADS
+# error "<shared_mutex> is not supported since libc++ has been configured without support for threads."
+#endif
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
@@ -501,8 +501,6 @@ swap(shared_lock<_Mutex>& __x, shared_lock<_Mutex>& __y) _NOEXCEPT
 
 _LIBCPP_END_NAMESPACE_STD
 
-#endif // !_LIBCPP_HAS_NO_THREADS
-
 #endif // _LIBCPP_STD_VER > 11
 
 _LIBCPP_POP_MACROS