From 56c715af40ed1cad1a3b2a29de50e7ceaa9911e4 Mon Sep 17 00:00:00 2001
From: bbbradsmith <bbbradsmith@users.noreply.github.com>
Date: Wed, 3 May 2023 01:14:27 -0400
Subject: [PATCH] Error for struct/union with a duplicate member #2015

---
 src/cc65/symtab.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/cc65/symtab.c b/src/cc65/symtab.c
index 72a2ac007..d9270f604 100644
--- a/src/cc65/symtab.c
+++ b/src/cc65/symtab.c
@@ -793,6 +793,8 @@ static int HandleSymRedefinition (SymEntry* Sym, const Type* T, unsigned Flags)
                 */
                 Error ("Redeclaration of enumerator constant '%s'", Sym->Name);
                 Sym = 0;
+            } else if (Flags & SC_STRUCTFIELD) {
+                Error ("Duplicate member '%s'", Sym->Name);
             }
         }
     }