[boost] Using libc++ when compiling with clang in c++11 mode

Has come up again: https://svn.boost.org/trac/boost/ticket/7566#comment I'm thinking that having a clang-c++11 toolset (that includes using libc++) might be a good thing. Any other opinions? -- Marshall Marshall Clow Idio Software <mailto:mclow.lists@gmail.com> A.D. 1517: Martin Luther nails his 95 Theses to the church door and is promptly moderated down to (-1, Flamebait). -- Yu Suzuki