From 907067c4e8860177bc22d715dbc3a857a5b76803 Mon Sep 17 00:00:00 2001
From: David Nadlinger <code@klickverbot.at>
Date: Sat, 23 Apr 2011 18:29:18 +0200
Subject: [PATCH] Merged DMD commit c7f94c6b66d3b4233ea01dd3dd9f0028b7118870:
 5391 Crash with recursive alias declaration

When a recursive alias declaration is encountered, mark it as
type error (not just as an alias to itself of type error).
---
 dmd/declaration.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dmd/declaration.c b/dmd/declaration.c
index 76abbe03..d39f1cec 100644
--- a/dmd/declaration.c
+++ b/dmd/declaration.c
@@ -620,6 +620,7 @@ Dsymbol *AliasDeclaration::toAlias()
     if (inSemantic)
     {   error("recursive alias declaration");
         aliassym = new TypedefDeclaration(loc, ident, Type::terror, NULL);
+        type = Type::terror;
     }
     else if (!aliassym && scope)
         semantic(scope);