From fd7f32ecd3c3bcb331612a17b79e25a8f1ee8b99 Mon Sep 17 00:00:00 2001
From: acqn <acqn163@outlook.com>
Date: Mon, 22 Aug 2022 14:31:51 +0800
Subject: [PATCH] Improved error handling and diagnostics with failed macro
 definitions.

---
 src/cc65/preproc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/cc65/preproc.c b/src/cc65/preproc.c
index f1328c4d0..ffae5baa6 100644
--- a/src/cc65/preproc.c
+++ b/src/cc65/preproc.c
@@ -1004,6 +1004,7 @@ static void DoDefine (void)
                 if (CurC != '.' || NextC != '.') {
                     PPError ("'...' expected");
                     ClearLine ();
+                    FreeMacro (M);
                     return;
                 }
                 NextChar ();
@@ -1043,8 +1044,9 @@ static void DoDefine (void)
 
         /* Check for a right paren and eat it if we find one */
         if (CurC != ')') {
-            PPError ("')' expected");
+            PPError ("')' expected for macro definition");
             ClearLine ();
+            FreeMacro (M);
             return;
         }
         NextChar ();