https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88532
Bug ID: 88532 Summary: variable has initializer but incomplete type Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: sasho648 at gmail dot com Target Milestone: --- Consider the following snippet: main() { struct t a = (sizeof(struct t { }), a); } It currently fails with variable 'a' has initializer but incomplete type. The above code works fine with clang.