contrib/gcc_update doesn't touch generated files in lto-plugin. As the result, autoconf/automake are needed for gcc build.
-- Summary: [LTO]: gcc_update doesn't touch generated files in lto- plugin Product: gcc Version: lto Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto 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=39216