https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64214
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- The global variable is exported to other TUs where we can't see all uses. Declare it 'static' and it works. Warning for non-static unused decls would get too many false positives.