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Fix compilation problems with clang

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Apparently, clang presents itself as gcc 4.2 even though it supports the final version of rvalue references. Restrict the workaround to gcc only.
This commit is contained in:
Andrey Semashev
2014-07-16 16:43:35 +04:00
committed by Peter Dimov
parent 59ac922a1c
commit 280aadfcdb
1 changed files with 1 additions and 1 deletions
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include/boost/smart_ptr/detail/sp_forward.hpp
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@ -25,7 +25,7 @@ namespace detail
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
#if defined( __GNUC__ ) && __GNUC__ * 100 + __GNUC_MINOR__ <= 404
#if defined( BOOST_GCC ) && __GNUC__ * 100 + __GNUC_MINOR__ <= 404
// GCC 4.4 supports an outdated version of rvalue references and creates a copy of the forwarded object.
// This results in warnings 'returning reference to temporary'. Therefore we use a special version similar to std::forward.