I am trying to build Boost 1.55 libraries with Clang 3.4 using g++ 4.8.2 as the toolchain on CentOS 6.5. I think these errors arise from trying to initialize 128-bit integers with 0: clang-linux.compile.c++.without-pth bin.v2/libs/atomic/build/clang-linux-3.4/release/address-model-64/instruction-set-core2/link-static/threading-multi/lockpool.o In file included from libs/atomic/src/lockpool.cpp:3: In file included from ./boost/atomic.hpp:12: In file included from ./boost/atomic/atomic.hpp:17: In file included from ./boost/atomic/detail/platform.hpp:22: ./boost/atomic/detail/gcc-atomic.hpp:961:64: error: no matching constructor for initialization of 'storage_type' (aka 'boost::atomics::detail::storage128_type') explicit base_atomic(value_type const& v) BOOST_NOEXCEPT : v_(0) ^ ~ ./boost/atomic/detail/gcc-atomic.hpp:932:28: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'int' to 'const boost::atomics::detail::storage128_type' for 1st argument struct BOOST_ALIGNMENT(16) storage128_type ^ ./boost/atomic/detail/gcc-atomic.hpp:932:28: note: candidate constructor (the implicit default constructor) not viable: requires 0 arguments, but 1 was provided ./boost/atomic/detail/gcc-atomic.hpp:968:22: error: no viable conversion from 'int' to 'storage_type' (aka 'boost::atomics::detail::storage128_type') storage_type tmp = 0; ^ ~ ./boost/atomic/detail/gcc-atomic.hpp:932:28: note: candidate constructor (the implicit copy constructor) not viable: no known conversion from 'int' to 'const boost::atomics::detail::storage128_type &' for 1st argument struct BOOST_ALIGNMENT(16) storage128_type ^ Similar errors follow these. I think the initializations to 0 are superfluous, because they are followed by memcpy calls that overwrite them. I will try that fix myself, but I am looking for an official fix that will get into the next release. -- Dick Hadsell 203-992-6320 Fax: 203-992-6001 Reply-to: hadsell@blueskystudios.com Blue Sky Studioshttp://www.blueskystudios.com 1 American Lane, Greenwich, CT 06831-2560 Follow Blue Sky Studios on Facebook http://www.facebook.com/BlueSkyStudios and Twitter http://twitter.com/#%21/blueskystudios