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-rw-r--r--lib/Sema/SemaDecl.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 3551518316..f5e045a722 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -6564,7 +6564,7 @@ void Sema::ActOnFields(Scope* S,
EnclosingDecl->setInvalidDecl();
continue;
} else if (FDTy->isIncompleteArrayType() && i == NumFields - 1 &&
- Record && Record->isStruct()) {
+ Record && !Record->isUnion()) {
// Flexible array member.
if (NumNamedMembers < 1) {
Diag(FD->getLocation(), diag::err_flexible_array_empty_struct)