Hi folks, the build of serialization in boost 1.44 fails when compiling for PPC Mac. On a native Power PC with gcc 4.0.1 the build fails: 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... On an Intel Mac, with OSX 10.5 and gcc 4.2.1 the build fails when architecture=combined is added to the bjam command: bin.v2/libs/serialization/build/darwin-4.2.1/release/ architecture-combined/link-static/threading-multi/binary_iarchive.o In file included from ./boost/archive/binary_iarchive_impl.hpp:22, from ./boost/archive/binary_iarchive.hpp:20, from libs/serialization/src/binary_iarchive.cpp:14: ./boost/archive/basic_binary_iarchive.hpp:74: error: invalid application of ‘sizeof’ to incomplete type ‘boost::STATIC_ASSERTION_FAILURE<false>’ lipo: can't figure out the architecture type of: /var/tmp//cc5y68Un.out "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -no-cpp-precomp -gdwarf-2 -arch i386 -arch ppc -DBOOST_ALL_NO_LIB=1 -DNDEBUG -I"." -c -o "bin.v2/libs/serialization/build/darwin-4.2.1/release/architecture- combined/link-static/threading-multi/binary_iarchive.o" "libs/serialization/src/binary_iarchive.cpp" ...failed darwin.compile.c++ bin.v2/libs/serialization/build/darwin-4.2.1/release/architecture- combined/link-static/threading-multi/binary_iarchive.o... ...failed updating 1 target... ...updated 96 targets... When using bjam without architecture=combined on an Intel Mac, the build succeeds. That makes boost.serialization unusable on PCC, because it can neither be build native, nor for a universal binary. I wonder how this could slip through the rigid testing procedures of boost... Regards, Philipp