As noted by richi, gcc fails to bootstrap with --enable-build-with-cxx: gcc/tree-flow-inline.h:854:8: error: variable 't' set but not used [-Werror=unused-but-set-variable]
-- Summary: -Wunused-but-set-variable vs. explicit void cast Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jakub at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44361