https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63543
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |manu at gcc dot gnu.org --- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- It would also be nice to mention the type. test.c:6:12: error: incomplete definition of type 'struct undefined' int x = f->a; ~^ test.c:2:8: note: forward declaration of 'struct undefined' struct undefined; ^