https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108027
--- Comment #9 from LIU Hao <lh_mouse at 126 dot com> --- (In reply to cqwrteur from comment #8) > if I delete them by hand, then gcc could not build anymore since build > scripts of libstdc++ would complain .la do not exist No library in MSYS2 has been installed with .la files because they are never necessary.