Warnings in boost/core/swap.hpp when using nvcc

[Karl Ljungkvist <k.ljungkvist@…>]

I get the following warning when I compile .cu files which uses the boost/core/swap.hpp file:

~/sw/boost/include/boost/core/swap.hpp(36): warning: calling a __host__ function from a __host__ __device__ function is not allowed
          detected during:
            instantiation of "void boost_swap_impl::swap_impl(T &, T &) [with T=boost::signals2::detail::foreign_shared_ptr_impl_base *]" 
(56): here
            instantiation of "void boost::swap(T1 &, T2 &) [with T1=boost::signals2::detail::foreign_shared_ptr_impl_base *, T2=boost::signals2::detail::foreign_shared_ptr_impl_base *]" 
~/sw/boost/include/boost/signals2/detail/foreign_ptr.hpp(111): here

I get this even with the most recent git version (commit 3a94cde). The attached program gives this error when compiling like this:

nvcc -I ~/sw/boost/include test_swap.cu

I use CUDA 7.5 and g++ 4.9.2.

[Karl Ljungkvist <k.ljungkvist@…>]

Minimal example giving the warning