https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68563
--- Comment #2 from ktkachov at gcc dot gnu.org --- (In reply to Richard Biener from comment #1) > This was reported on the ML as a valid error. You should always use > --disable-werror when building with LTO. Ok, will do. In the meantime, should we fix these errors in libdecnumber then since they're legitimate?