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On Bionic PTHREAD_MUTEX_INITIALIZER contains the expression "<enum-type> & <integer-type>", which causes ADL to perform name lookup for operator&. During this lookup Clang decides that it requires the default member initializer for std::mutex while defining the DMI for std::mutex::__m_. If I'm not mistaken this is caused by the explicit noexcept declaration on the defaulted constructor. This patch removes the explicit noexcept and instead allows the compiler to declare the default constructor implicitly noexcept. It also adds a static_assert to ensure that happens. Unfortunatly because it's not easy to change the value of _LIBCPP_MUTEX_INITIALIZER for a single test there is no good way to test this patch. The Clang behavior causing the trouble here was introduced in r287713, which first appears in the 4.0 release. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@304942 91177308-0d34-0410-b5e6-96231b3b80d8
libc++ Documentation ==================== The libc++ documentation is written using the Sphinx documentation generator. It is currently tested with Sphinx 1.1.3. To build the documents into html configure libc++ with the following cmake options: * -DLLVM_ENABLE_SPHINX=ON * -DLIBCXX_INCLUDE_DOCS=ON After configuring libc++ with these options the make rule `docs-libcxx-html` should be available.