Hi folks, after successfully deploying boost 1.44 on Windows and Linux, I now fail bitterly on Mac OSX. It is a Power PC with OSX 10.4 and gcc 4.0.1 When building boost with the following command: ./bjam --layout=system --with-serialization link=static variant=release threading=multi I get the following error: darwin.compile.c++ bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/basic_xml_archive.o darwin.compile.c++ bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/binary_iarchive.o ./boost/archive/basic_binary_iarchive.hpp:74: error: invalid application of 'sizeof' to incomplete type 'boost::STATIC_ASSERTION_FAILURE<false>' "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -no-cpp-precomp -gdwarf-2 -Wno-long-double -DBOOST_ALL_NO_LIB=1 -DNDEBUG -I"." -c -o "bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/binary_iarchive.o" "libs/serialization/src/binary_iarchive.cpp" ...failed darwin.compile.c++ bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/binary_iarchive.o... ...failed updating 1 target... ...updated 74 targets... I did NOT set architecture=combined. I want a PPC only build. Any help is greatly appreciated. Regards Philipp