I received the following bug report at Debian:
The package aqsis that I maintain, will start to fail in all of the architectures supported by Debian and Ubuntu as soon as the packages are rebuilt agains the new Boost libraries.
You might want to apply the changes suggested by the patch attached to the bug report, although I would not use the #ifdefs and would switch to the new substitutes.
Also, it would be useful for me to know if you're going to release a new stable version soon (either 2.0 or 1.6.1) so I can plan ahead and release an official version instead of having to include the patches. Is there any plan about new stable releases?