https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105114
--- Comment #9 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- The dependencies in gcc_update refer to gcc/config/loongarch/genopts/loongarch-string which doesn't exist (should be loongarch-strings not loongarch-string, I suppose). Maybe that's causing the problem?