1 // (C) Copyright Christopher Jefferson 2011. 2 // Use, modification and distribution are subject to the 3 // Boost Software License, Version 1.0. (See accompanying file 4 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 5 6 // See http://www.boost.org for most recent version. 7 8 // config for libc++ 9 // Might need more in here later. 10 11 #if !defined(_LIBCPP_VERSION) 12 # include <ciso646> 13 # if !defined(_LIBCPP_VERSION) 14 # error "This is not libc++!" 15 # endif 16 #endif 17 18 #define BOOST_STDLIB "libc++ version " BOOST_STRINGIZE(_LIBCPP_VERSION) 19 20 #define BOOST_HAS_THREADS 21 22 #ifdef _LIBCPP_HAS_NO_VARIADICS 23 # define BOOST_NO_CXX11_HDR_TUPLE 24 #endif 25 26 // BOOST_NO_CXX11_ALLOCATOR should imply no support for the C++11 27 // allocator model. The C++11 allocator model requires a conforming 28 // std::allocator_traits which is only possible with C++11 template 29 // aliases since members rebind_alloc and rebind_traits require it. 30 #if defined(_LIBCPP_HAS_NO_TEMPLATE_ALIASES) 31 # define BOOST_NO_CXX11_ALLOCATOR 32 # define BOOST_NO_CXX11_POINTER_TRAITS 33 #endif 34 35 #if __cplusplus < 201103 36 // 37 // These two appear to be somewhat useable in C++03 mode, there may be others... 38 // 39 //# define BOOST_NO_CXX11_HDR_ARRAY 40 //# define BOOST_NO_CXX11_HDR_FORWARD_LIST 41 42 # define BOOST_NO_CXX11_HDR_CODECVT 43 # define BOOST_NO_CXX11_HDR_CONDITION_VARIABLE 44 # define BOOST_NO_CXX11_HDR_INITIALIZER_LIST 45 # define BOOST_NO_CXX11_HDR_MUTEX 46 # define BOOST_NO_CXX11_HDR_RANDOM 47 # define BOOST_NO_CXX11_HDR_RATIO 48 # define BOOST_NO_CXX11_HDR_REGEX 49 # define BOOST_NO_CXX11_HDR_SYSTEM_ERROR 50 # define BOOST_NO_CXX11_HDR_THREAD 51 # define BOOST_NO_CXX11_HDR_TUPLE 52 # define BOOST_NO_CXX11_HDR_TYPEINDEX 53 # define BOOST_NO_CXX11_HDR_UNORDERED_MAP 54 # define BOOST_NO_CXX11_HDR_UNORDERED_SET 55 # define BOOST_NO_CXX11_NUMERIC_LIMITS 56 # define BOOST_NO_CXX11_ALLOCATOR 57 # define BOOST_NO_CXX11_POINTER_TRAITS 58 # define BOOST_NO_CXX11_SMART_PTR 59 # define BOOST_NO_CXX11_HDR_FUNCTIONAL 60 # define BOOST_NO_CXX11_STD_ALIGN 61 # define BOOST_NO_CXX11_ADDRESSOF 62 # define BOOST_NO_CXX11_HDR_ATOMIC 63 # define BOOST_NO_CXX11_ATOMIC_SMART_PTR 64 # define BOOST_NO_CXX11_HDR_CHRONO 65 # define BOOST_NO_CXX11_HDR_TYPE_TRAITS 66 # define BOOST_NO_CXX11_HDR_FUTURE 67 #elif _LIBCPP_VERSION < 3700 68 // 69 // These appear to be unusable/incomplete so far: 70 // 71 # define BOOST_NO_CXX11_HDR_ATOMIC 72 # define BOOST_NO_CXX11_ATOMIC_SMART_PTR 73 # define BOOST_NO_CXX11_HDR_CHRONO 74 # define BOOST_NO_CXX11_HDR_TYPE_TRAITS 75 # define BOOST_NO_CXX11_HDR_FUTURE 76 #endif 77 78 79 #if _LIBCPP_VERSION < 3700 80 // libc++ uses a non-standard messages_base 81 #define BOOST_NO_STD_MESSAGES 82 #endif 83 84 // C++14 features 85 #if (_LIBCPP_VERSION < 3700) || (__cplusplus <= 201402L) 86 # define BOOST_NO_CXX14_STD_EXCHANGE 87 #endif 88 89 // C++17 features 90 #if (_LIBCPP_VERSION < 4000) || (__cplusplus <= 201402L) 91 # define BOOST_NO_CXX17_STD_APPLY 92 # define BOOST_NO_CXX17_HDR_OPTIONAL 93 # define BOOST_NO_CXX17_HDR_STRING_VIEW 94 #endif 95 #if (_LIBCPP_VERSION > 4000) && (__cplusplus > 201402L) && !defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) 96 # define BOOST_NO_AUTO_PTR 97 #endif 98 #if (_LIBCPP_VERSION > 4000) && (__cplusplus > 201402L) && !defined(_LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE) 99 # define BOOST_NO_CXX98_RANDOM_SHUFFLE 100 #endif 101 #if (_LIBCPP_VERSION > 4000) && (__cplusplus > 201402L) && !defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS) 102 # define BOOST_NO_CXX98_BINDERS 103 #endif 104 105 #define BOOST_NO_CXX17_ITERATOR_TRAITS 106 #define BOOST_NO_CXX17_STD_INVOKE // Invoke support is incomplete (no invoke_result) 107 108 #if (_LIBCPP_VERSION <= 1101) && !defined(BOOST_NO_CXX11_THREAD_LOCAL) 109 // This is a bit of a sledgehammer, because really it's just libc++abi that has no 110 // support for thread_local, leading to linker errors such as 111 // "undefined reference to `__cxa_thread_atexit'". It is fixed in the 112 // most recent releases of libc++abi though... 113 # define BOOST_NO_CXX11_THREAD_LOCAL 114 #endif 115 116 #if defined(__linux__) && (_LIBCPP_VERSION < 6000) && !defined(BOOST_NO_CXX11_THREAD_LOCAL) 117 // After libc++-dev is installed on Trusty, clang++-libc++ almost works, 118 // except uses of `thread_local` fail with undefined reference to 119 // `__cxa_thread_atexit`. 120 // 121 // clang's libc++abi provides an implementation by deferring to the glibc 122 // implementation, which may or may not be available (it is not on Trusty). 123 // clang 4's libc++abi will provide an implementation if one is not in glibc 124 // though, so thread local support should work with clang 4 and above as long 125 // as libc++abi is linked in. 126 # define BOOST_NO_CXX11_THREAD_LOCAL 127 #endif 128 129 #if defined(__has_include) 130 #if !__has_include(<shared_mutex>) 131 # define BOOST_NO_CXX14_HDR_SHARED_MUTEX 132 #elif __cplusplus <= 201103 133 # define BOOST_NO_CXX14_HDR_SHARED_MUTEX 134 #endif 135 #elif __cplusplus < 201402 136 # define BOOST_NO_CXX14_HDR_SHARED_MUTEX 137 #endif 138 139 #if !defined(BOOST_NO_CXX14_HDR_SHARED_MUTEX) && (_LIBCPP_VERSION < 5000) 140 # define BOOST_NO_CXX14_HDR_SHARED_MUTEX 141 #endif 142 143 // --- end --- 144