https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103994
--- Comment #2 from Melven.Roehrig-Zoellner at DLR dot de --- Can confirm this with current trunk (see https://godbolt.org/z/16K1jhrsW). I stumbled upon this while trying to include the C++ library Eigen in the global module fragment (same stacktrace)... Thanks to anyone looking into this!
