On Linux/ia64, revision 162896 gave: ../../src-trunk/gcc/dwarf2out.c:1195:1: error: 'initial_return_save' defined but not used [-Werror=unused-function] cc1: all warnings being treated as errors
It may be caused by revision 162883: http://gcc.gnu.org/ml/gcc-cvs/2010-08/msg00094.html -- Summary: [4.6 regression] Failed to bootstrap on Linux/ia64 Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl dot tools at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45188