On Linux/x86, revision 163403: http://gcc.gnu.org/ml/gcc-cvs/2010-08/msg00616.html
gave: ../../src-trunk/gcc/lto/lto.c: In function 'lto_materialize_function': ../../src-trunk/gcc/lto/lto.c:161:3: error: implicit declaration of function 'has_analyzed_clone' [-Werror=implicit-function-declaration] ../../src-trunk/gcc/lto/lto.c: At top level: ../../src-trunk/gcc/lto/lto.c:124:1: error: 'has_analyzed_clone_p' defined but not used [-Werror=unused-function] cc1: all warnings being treated as errors -- Summary: [4.6 regression] Revision 163403 Failed to bootstrap Product: gcc Version: 4.5.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap 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=45357