Benjamin, apparently the framework isn't passing -std=gnu++0x (I suspect isn't passing -pthread either). Can you have a look?
-- Summary: performance/30_threads/future/polling.cc fails at compile time Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: minor Priority: P3 Component: libstdc++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: paolo dot carlini at oracle dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42491