I generated a Boost.sln solution for VC8 with the new system CMake. ( using this command: cmake -DCMAKE_IS_EXPERIMENTAL=YES_I_KNOW CMakeLists.txt in root directory of the boost ) When I try to build the entire solution all thinks goes good without problem. But only the first time. In fact, at the end of this first building all the headers are erased from the boost the directory. So I cannot make another building and I have to recover the headers file by other ways. Have you got the same problem? This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html