https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107998
--- Comment #20 from jon_y <10walls at gmail dot com> --- No, Cygwin does not use fat objects/archives. As far as I know, Cygwin never shipped multilib capable gcc.
10walls at gmail dot com via Gcc-bugs Wed, 01 Feb 2023 22:51:53 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107998
--- Comment #20 from jon_y <10walls at gmail dot com> --- No, Cygwin does not use fat objects/archives. As far as I know, Cygwin never shipped multilib capable gcc.