Hi, I got an error when building OpenOffice.org on Alpha EV6 platform, the error log is as following: Compiling: comphelper/unxlngaxp.pro/misc/comphelp4gcc3_version.c Making: comphelper.lib Making: libcomphelp4gcc3.so ../unxlngaxp.pro/slo/enumberablemap.o: In function 'comphelper::EnumerableMap::initialize(com::sun::star::uno::Sequence<com::sun::star::uno::Any> const&)': '__sync_fetch_and_add_4' undefined reference ./unxlngaxp.pro/slo/enumberablemap.o: In function 'comphelper::EnumerableMap::initialize(com::sun::star::uno::Sequence<com::sun::star::uno::Any> const&)': '__sync_fetch_and_add_4'undefined reference ../unxlngaxp.pro/slo/enumberablemap.o: In function 'comphelper::EnumerableMap::initialize(com::sun::star::uno::Sequence<com::sun::star::uno::Any> const&)': '__sync_fetch_and_add_4'undefined reference ../unxlngaxp.pro/slo/enumberablemap.o: In function 'comphelper::EnumerableMap::initialize(com::sun::star::uno::Sequence<com::sun::star::uno::Any> const&)': '__sync_fetch_and_add_4'undefined reference ../unxlngaxp.pro/slo/enumberablemap.o: In function 'comphelper::EnumerableMap::initialize(com::sun::star::uno::Sequence<com::sun::star::uno::Any> const&)': '__sync_fetch_and_add_4'undefined reference ../unxlngaxp.pro/slo/enumberablemap.o: more undefined references to '__sync_fetch_and_add_4' follow collect2: ld returned 1 exit status dmake: Error code 1: while making '../unxlngaxp.pro/lib/libcomphelp4gcc3.so' The <boost/shared_ptr.hpp> of Boost_1_39_0 is used here. Is this a bug on Boost_1_39_0 ? and is there already a fix for it? Best Regards, Yan