required all that space because it was building static/shared,
single-thread/multi-threaded, and debug/production versions of the
libraries - as well as every combination of those. Now we build
only the shared, multi-threaded, production version, which needs
only 8 MB. The headers account for the other 50 MB, so it might be
worthwhile to split them off into a separate package (in order to
reduce the runtime closure of applications that use Boost, such as
KDE).
* Removed some Boost versions that aren't used anymore.
svn path=/nixpkgs/trunk/; revision=14877
