https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103524 Bug 103524 depends on bug 118582, which changed state.
Bug 118582 Summary: [15 regression] [modules] Bad file data when building <thread> as a header module since r15-2807 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118582 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED