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Update for present, but broken <concepts> on latest MacOS clang.

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jzmaddock
2021-10-07 13:05:15 +01:00
parent 35c4a13e6f
commit 7cc7f94007
1 changed files with 3 additions and 0 deletions
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include/boost/config/stdlib/libcpp.hpp
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@ -157,6 +157,9 @@
#if !defined(__cpp_lib_semaphore) || (__cpp_lib_semaphore < 201907L)
# define BOOST_NO_CXX20_HDR_SEMAPHORE
#endif
#if !defined(__cpp_lib_concepts) || (__cpp_lib_concepts < 202002L)
# define BOOST_NO_CXX20_HDR_CONCEPTS
#endif
#if(_LIBCPP_VERSION < 9000) && !defined(BOOST_NO_CXX20_HDR_SPAN)
// as_writable_bytes is missing.