Is there a way to build boost libraries without having Visual Studio installed? I tried to follow installation on: http://www.boost.org/doc/libs/1_51_0/more/getting_started/windows.html and while in command prompt I’ve typed bootstrap.bat, I’m getting:

AFAIC cl is a VS compiler, but I do not have VS installed nor do I want to have it. I’m using Code::Blocks and GCC 4.7.1 and I want to build this library for this toolset, not for VS. Anyone?
From A beginner’s quick reference for setting up Boost with Code::Blocks in Windows:
Bootstrap.bat assumes you are using msvc compiler, to use Gcc, type