From 9075a853dc919e2d028b4cf67af61183555dad13 Mon Sep 17 00:00:00 2001
From: acqn <acqn163@outlook.com>
Date: Wed, 29 Jul 2020 15:09:53 +0800
Subject: [PATCH] Allows one trailing comma before the closing curly of a
 struct/union initializer.

---
 src/cc65/declare.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/cc65/declare.c b/src/cc65/declare.c
index a1d23c20b..0c489dab4 100644
--- a/src/cc65/declare.c
+++ b/src/cc65/declare.c
@@ -2230,6 +2230,13 @@ static unsigned ParseStructInit (Type* T, int* Braces, int AllowFlexibleMembers)
 
         /* Check for excess elements */
         if (Entry == 0) {
+            /* Is there just one trailing comma before a closing curly? */
+            if (NextTok.Tok == TOK_RCURLY && CurTok.Tok == TOK_COMMA) {
+                /* Skip comma and exit scope */
+                NextToken ();
+                break;
+            }
+
             if (HasCurly) {
                 Error ("Excess elements in %s initializer", GetBasicTypeName (T));
                 SkipInitializer (HasCurly);