[boost] C++11 variant of the gcc toolset?

Subject: [boost] C++11 variant of the gcc toolset?
From: Peter Dimov (lists_at_[hidden])
Date: 2013-12-13 15:51:52

Currently, when I want to test under g++ in C++11 mode, I use

    b2 toolset=gcc cxxflags=-std=c++11

This works, but (a) prevents me from combining this with other toolsets, (b) 
prevents me from testing both 03 and 11 at once, and (c) boost.build doesn't 
treat the two modes of the gcc toolset as distinct and uses the same 
directory for both.

Am I missing something simple, or if not, shouldn't we have a separate gcc11 
toolset that is exactly the same as the gcc toolset, but with -std=c++11 
applied?